/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 13:48:53,456 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 13:48:53,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 13:48:53,509 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-15 13:48:53,515 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-15 13:48:53,516 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-15 13:48:53,516 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-15 13:48:53,517 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-15 13:48:53,518 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-15 13:48:53,523 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-15 13:48:53,527 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-15 13:48:53,540 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-15 13:48:53,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-15 13:48:53,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-15 13:48:53,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-15 13:48:53,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-15 13:48:53,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-15 13:48:53,555 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 13:48:53,555 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 13:48:53,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 13:48:53,556 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-03-15 13:48:53,579 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 13:48:53,579 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 13:48:53,579 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-15 13:48:53,580 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-15 13:48:53,580 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 13:48:53,580 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 13:48:53,581 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 13:48:53,581 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 13:48:53,581 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 13:48:53,581 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 13:48:53,582 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 13:48:53,582 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 13:48:53,582 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 13:48:53,582 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 13:48:53,582 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 13:48:53,582 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 13:48:53,582 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 13:48:53,582 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 13:48:53,582 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 13:48:53,582 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 13:48:53,583 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 13:48:53,583 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 13:48:53,583 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 13:48:53,583 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 13:48:53,584 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 13:48:53,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 13:48:53,584 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 13:48:53,584 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-15 13:48:53,584 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 13:48:53,584 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 13:48:53,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 13:48:53,584 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-15 13:48:53,584 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 13:48:53,585 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 13:48:53,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 13:48:53,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 13:48:53,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 13:48:53,777 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 13:48:53,778 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 13:48:53,779 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c [2022-03-15 13:48:53,832 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94f4af1f8/471b67f368cb43cb9776350f2954ee38/FLAG6bbd7663b [2022-03-15 13:48:54,163 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 13:48:54,163 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c [2022-03-15 13:48:54,172 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94f4af1f8/471b67f368cb43cb9776350f2954ee38/FLAG6bbd7663b [2022-03-15 13:48:54,585 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94f4af1f8/471b67f368cb43cb9776350f2954ee38 [2022-03-15 13:48:54,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 13:48:54,588 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 13:48:54,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 13:48:54,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 13:48:54,592 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 13:48:54,592 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 01:48:54" (1/1) ... [2022-03-15 13:48:54,593 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c53624a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:48:54, skipping insertion in model container [2022-03-15 13:48:54,593 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 01:48:54" (1/1) ... [2022-03-15 13:48:54,598 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 13:48:54,611 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 13:48:54,744 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c[2495,2508] [2022-03-15 13:48:54,747 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 13:48:54,752 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 13:48:54,764 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c[2495,2508] [2022-03-15 13:48:54,765 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 13:48:54,774 INFO L208 MainTranslator]: Completed translation [2022-03-15 13:48:54,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:48:54 WrapperNode [2022-03-15 13:48:54,774 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 13:48:54,775 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 13:48:54,775 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 13:48:54,775 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 13:48:54,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:48:54" (1/1) ... [2022-03-15 13:48:54,784 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:48:54" (1/1) ... [2022-03-15 13:48:54,800 INFO L137 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 158 [2022-03-15 13:48:54,800 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 13:48:54,801 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 13:48:54,801 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 13:48:54,801 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 13:48:54,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:48:54" (1/1) ... [2022-03-15 13:48:54,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:48:54" (1/1) ... [2022-03-15 13:48:54,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:48:54" (1/1) ... [2022-03-15 13:48:54,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:48:54" (1/1) ... [2022-03-15 13:48:54,812 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:48:54" (1/1) ... [2022-03-15 13:48:54,813 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:48:54" (1/1) ... [2022-03-15 13:48:54,814 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:48:54" (1/1) ... [2022-03-15 13:48:54,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 13:48:54,821 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 13:48:54,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 13:48:54,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 13:48:54,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:48:54" (1/1) ... [2022-03-15 13:48:54,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 13:48:54,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 13:48:54,852 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-15 13:48:54,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-15 13:48:54,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 13:48:54,875 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-15 13:48:54,875 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-15 13:48:54,875 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-15 13:48:54,876 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-15 13:48:54,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 13:48:54,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 13:48:54,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 13:48:54,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 13:48:54,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 13:48:54,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 13:48:54,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 13:48:54,878 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 13:48:54,955 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 13:48:54,957 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 13:48:55,270 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 13:48:55,278 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 13:48:55,278 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 13:48:55,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 01:48:55 BoogieIcfgContainer [2022-03-15 13:48:55,279 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 13:48:55,281 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 13:48:55,281 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 13:48:55,286 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 13:48:55,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 01:48:54" (1/3) ... [2022-03-15 13:48:55,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6873caae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 01:48:55, skipping insertion in model container [2022-03-15 13:48:55,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:48:54" (2/3) ... [2022-03-15 13:48:55,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6873caae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 01:48:55, skipping insertion in model container [2022-03-15 13:48:55,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 01:48:55" (3/3) ... [2022-03-15 13:48:55,288 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-file-item-symm.wvr.c [2022-03-15 13:48:55,291 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 13:48:55,291 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-15 13:48:55,291 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 13:48:55,291 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 13:48:55,329 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,330 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,330 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,330 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,330 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,330 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,330 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,330 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,331 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,331 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,331 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,331 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,331 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,331 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,332 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,332 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,332 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,332 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,332 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,332 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,332 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,332 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,332 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,332 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,333 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,333 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,333 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,333 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,333 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,333 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,333 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,333 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,333 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,333 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,334 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,334 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,334 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,334 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,334 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,334 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,334 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,334 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,334 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,334 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,334 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,335 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,335 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,335 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,335 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,335 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,335 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,335 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,335 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,335 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,335 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,335 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,336 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,336 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,336 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,336 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,336 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,336 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,336 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,336 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,336 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,336 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,336 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,337 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,337 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,337 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,337 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,337 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,338 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,338 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,338 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,338 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,338 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,338 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,338 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,338 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,338 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,338 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,339 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,339 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,339 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,339 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,339 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,339 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,339 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,340 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,340 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,341 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,343 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,346 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,346 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,346 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,346 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,346 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,346 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,347 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,347 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,347 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,347 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,347 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,347 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,347 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,347 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,347 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,348 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,348 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,348 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,348 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,348 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,348 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,349 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,349 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,349 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,349 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,350 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,350 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,350 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,350 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,351 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,351 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,351 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,351 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,351 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,351 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,351 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,351 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,352 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,352 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,359 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,360 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,360 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,360 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,360 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,360 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,360 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,360 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,360 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,360 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,361 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,361 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,361 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,361 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,361 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,361 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,361 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,361 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,361 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,361 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,362 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,362 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,363 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,363 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,363 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,363 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,363 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,363 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,363 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,363 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,364 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,364 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,364 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,364 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,364 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,364 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,364 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,364 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,364 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,364 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,364 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,364 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,364 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,365 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,365 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,365 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,365 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,365 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,365 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,365 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,365 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,365 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,366 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,366 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,366 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,366 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,367 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,367 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,367 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,368 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,368 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,368 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,368 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,368 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,368 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,368 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,368 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,368 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,368 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,368 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,369 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,369 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,369 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,369 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,369 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,371 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,371 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,371 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,372 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,372 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,372 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,372 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,372 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,372 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,372 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,373 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,373 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,375 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,377 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,378 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,378 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,379 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,379 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,379 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,381 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,381 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,381 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,381 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,381 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,382 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,382 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,382 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,382 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,382 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,384 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,385 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,385 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,385 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,385 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,385 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,385 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,385 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,385 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,385 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,385 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,385 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,385 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,385 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,385 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,386 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,387 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,387 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,387 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,387 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,387 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,387 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,387 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,387 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,388 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,388 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,388 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,388 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,388 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,388 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,388 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,388 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:48:55,390 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-15 13:48:55,431 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 13:48:55,435 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 13:48:55,436 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-15 13:48:55,451 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 198 places, 210 transitions, 436 flow [2022-03-15 13:48:55,788 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 11777 states, 11776 states have (on average 2.9679857336956523) internal successors, (34951), 11776 states have internal predecessors, (34951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:48:55,824 INFO L276 IsEmpty]: Start isEmpty. Operand has 11777 states, 11776 states have (on average 2.9679857336956523) internal successors, (34951), 11776 states have internal predecessors, (34951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:48:55,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:48:55,921 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:48:55,922 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:48:55,922 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:48:55,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:48:55,926 INFO L85 PathProgramCache]: Analyzing trace with hash 997613538, now seen corresponding path program 1 times [2022-03-15 13:48:55,936 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:48:55,936 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404613284] [2022-03-15 13:48:55,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:48:55,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:48:56,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:48:56,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:48:56,313 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:48:56,313 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404613284] [2022-03-15 13:48:56,313 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404613284] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:48:56,313 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:48:56,314 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:48:56,314 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131953595] [2022-03-15 13:48:56,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:48:56,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:48:56,318 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:48:56,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:48:56,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:48:56,355 INFO L87 Difference]: Start difference. First operand has 11777 states, 11776 states have (on average 2.9679857336956523) internal successors, (34951), 11776 states have internal predecessors, (34951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:48:56,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:48:56,834 INFO L93 Difference]: Finished difference Result 17273 states and 48971 transitions. [2022-03-15 13:48:56,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:48:56,835 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:48:56,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:48:56,925 INFO L225 Difference]: With dead ends: 17273 [2022-03-15 13:48:56,925 INFO L226 Difference]: Without dead ends: 15483 [2022-03-15 13:48:56,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=132, Invalid=420, Unknown=0, NotChecked=0, Total=552 [2022-03-15 13:48:56,932 INFO L933 BasicCegarLoop]: 441 mSDtfsCounter, 565 mSDsluCounter, 2535 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 2935 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:48:56,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [565 Valid, 2935 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:48:56,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15483 states. [2022-03-15 13:48:57,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15483 to 11190. [2022-03-15 13:48:57,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11190 states, 11189 states have (on average 2.897220484404326) internal successors, (32417), 11189 states have internal predecessors, (32417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:48:57,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11190 states to 11190 states and 32417 transitions. [2022-03-15 13:48:57,442 INFO L78 Accepts]: Start accepts. Automaton has 11190 states and 32417 transitions. Word has length 101 [2022-03-15 13:48:57,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:48:57,443 INFO L470 AbstractCegarLoop]: Abstraction has 11190 states and 32417 transitions. [2022-03-15 13:48:57,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:48:57,444 INFO L276 IsEmpty]: Start isEmpty. Operand 11190 states and 32417 transitions. [2022-03-15 13:48:57,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:48:57,470 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:48:57,470 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:48:57,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 13:48:57,471 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:48:57,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:48:57,472 INFO L85 PathProgramCache]: Analyzing trace with hash 672990146, now seen corresponding path program 1 times [2022-03-15 13:48:57,472 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:48:57,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81377001] [2022-03-15 13:48:57,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:48:57,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:48:57,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:48:57,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:48:57,516 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:48:57,516 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81377001] [2022-03-15 13:48:57,516 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81377001] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:48:57,516 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:48:57,516 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 13:48:57,516 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409955193] [2022-03-15 13:48:57,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:48:57,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 13:48:57,517 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:48:57,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 13:48:57,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 13:48:57,518 INFO L87 Difference]: Start difference. First operand 11190 states and 32417 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:48:57,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:48:57,627 INFO L93 Difference]: Finished difference Result 15448 states and 43794 transitions. [2022-03-15 13:48:57,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 13:48:57,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:48:57,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:48:57,684 INFO L225 Difference]: With dead ends: 15448 [2022-03-15 13:48:57,684 INFO L226 Difference]: Without dead ends: 15393 [2022-03-15 13:48:57,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 13:48:57,687 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 122 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:48:57,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 432 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:48:57,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15393 states. [2022-03-15 13:48:57,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15393 to 11390. [2022-03-15 13:48:57,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11390 states, 11389 states have (on average 2.8798840986917202) internal successors, (32799), 11389 states have internal predecessors, (32799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:48:58,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11390 states to 11390 states and 32799 transitions. [2022-03-15 13:48:58,073 INFO L78 Accepts]: Start accepts. Automaton has 11390 states and 32799 transitions. Word has length 101 [2022-03-15 13:48:58,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:48:58,074 INFO L470 AbstractCegarLoop]: Abstraction has 11390 states and 32799 transitions. [2022-03-15 13:48:58,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:48:58,075 INFO L276 IsEmpty]: Start isEmpty. Operand 11390 states and 32799 transitions. [2022-03-15 13:48:58,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:48:58,100 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:48:58,100 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:48:58,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 13:48:58,100 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:48:58,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:48:58,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1130247864, now seen corresponding path program 1 times [2022-03-15 13:48:58,101 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:48:58,101 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350382614] [2022-03-15 13:48:58,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:48:58,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:48:58,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:48:58,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:48:58,160 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:48:58,160 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350382614] [2022-03-15 13:48:58,160 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350382614] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:48:58,160 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:48:58,160 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 13:48:58,160 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232838177] [2022-03-15 13:48:58,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:48:58,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 13:48:58,161 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:48:58,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 13:48:58,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 13:48:58,161 INFO L87 Difference]: Start difference. First operand 11390 states and 32799 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:48:58,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:48:58,286 INFO L93 Difference]: Finished difference Result 15691 states and 44284 transitions. [2022-03-15 13:48:58,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 13:48:58,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:48:58,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:48:58,325 INFO L225 Difference]: With dead ends: 15691 [2022-03-15 13:48:58,325 INFO L226 Difference]: Without dead ends: 15450 [2022-03-15 13:48:58,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 13:48:58,331 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 126 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:48:58,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 432 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:48:58,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15450 states. [2022-03-15 13:48:58,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15450 to 11400. [2022-03-15 13:48:58,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11400 states, 11399 states have (on average 2.879287656812001) internal successors, (32821), 11399 states have internal predecessors, (32821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:48:58,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11400 states to 11400 states and 32821 transitions. [2022-03-15 13:48:58,785 INFO L78 Accepts]: Start accepts. Automaton has 11400 states and 32821 transitions. Word has length 101 [2022-03-15 13:48:58,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:48:58,786 INFO L470 AbstractCegarLoop]: Abstraction has 11400 states and 32821 transitions. [2022-03-15 13:48:58,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:48:58,786 INFO L276 IsEmpty]: Start isEmpty. Operand 11400 states and 32821 transitions. [2022-03-15 13:48:58,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:48:58,816 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:48:58,817 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:48:58,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 13:48:58,817 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:48:58,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:48:58,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1378875394, now seen corresponding path program 1 times [2022-03-15 13:48:58,818 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:48:58,818 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245658116] [2022-03-15 13:48:58,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:48:58,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:48:58,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:48:58,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:48:58,883 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:48:58,883 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245658116] [2022-03-15 13:48:58,883 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245658116] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:48:58,884 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:48:58,884 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 13:48:58,884 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227769351] [2022-03-15 13:48:58,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:48:58,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 13:48:58,884 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:48:58,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 13:48:58,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 13:48:58,885 INFO L87 Difference]: Start difference. First operand 11400 states and 32821 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:48:58,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:48:58,934 INFO L93 Difference]: Finished difference Result 11167 states and 31220 transitions. [2022-03-15 13:48:58,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 13:48:58,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:48:58,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:48:58,961 INFO L225 Difference]: With dead ends: 11167 [2022-03-15 13:48:58,961 INFO L226 Difference]: Without dead ends: 11167 [2022-03-15 13:48:58,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 13:48:58,965 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 135 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:48:58,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 284 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:48:58,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11167 states. [2022-03-15 13:48:59,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11167 to 10541. [2022-03-15 13:48:59,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10541 states, 10540 states have (on average 2.8139468690702087) internal successors, (29659), 10540 states have internal predecessors, (29659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:48:59,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10541 states to 10541 states and 29659 transitions. [2022-03-15 13:48:59,247 INFO L78 Accepts]: Start accepts. Automaton has 10541 states and 29659 transitions. Word has length 101 [2022-03-15 13:48:59,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:48:59,248 INFO L470 AbstractCegarLoop]: Abstraction has 10541 states and 29659 transitions. [2022-03-15 13:48:59,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:48:59,248 INFO L276 IsEmpty]: Start isEmpty. Operand 10541 states and 29659 transitions. [2022-03-15 13:48:59,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:48:59,271 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:48:59,271 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:48:59,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 13:48:59,272 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:48:59,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:48:59,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1511509720, now seen corresponding path program 1 times [2022-03-15 13:48:59,272 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:48:59,272 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391862244] [2022-03-15 13:48:59,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:48:59,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:48:59,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:48:59,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:48:59,400 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:48:59,400 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391862244] [2022-03-15 13:48:59,400 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391862244] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:48:59,401 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:48:59,401 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:48:59,401 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249407618] [2022-03-15 13:48:59,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:48:59,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:48:59,401 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:48:59,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:48:59,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:48:59,402 INFO L87 Difference]: Start difference. First operand 10541 states and 29659 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:48:59,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:48:59,794 INFO L93 Difference]: Finished difference Result 13249 states and 36739 transitions. [2022-03-15 13:48:59,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-15 13:48:59,794 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:48:59,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:48:59,823 INFO L225 Difference]: With dead ends: 13249 [2022-03-15 13:48:59,823 INFO L226 Difference]: Without dead ends: 12532 [2022-03-15 13:48:59,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2022-03-15 13:48:59,824 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 409 mSDsluCounter, 2047 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 2390 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:48:59,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [409 Valid, 2390 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:48:59,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12532 states. [2022-03-15 13:49:00,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12532 to 10399. [2022-03-15 13:49:00,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10399 states, 10398 states have (on average 2.8191959992306215) internal successors, (29314), 10398 states have internal predecessors, (29314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:00,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10399 states to 10399 states and 29314 transitions. [2022-03-15 13:49:00,089 INFO L78 Accepts]: Start accepts. Automaton has 10399 states and 29314 transitions. Word has length 101 [2022-03-15 13:49:00,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:00,090 INFO L470 AbstractCegarLoop]: Abstraction has 10399 states and 29314 transitions. [2022-03-15 13:49:00,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:00,090 INFO L276 IsEmpty]: Start isEmpty. Operand 10399 states and 29314 transitions. [2022-03-15 13:49:00,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:00,110 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:00,110 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:00,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 13:49:00,110 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:00,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:00,111 INFO L85 PathProgramCache]: Analyzing trace with hash 770227354, now seen corresponding path program 2 times [2022-03-15 13:49:00,111 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:00,111 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047085224] [2022-03-15 13:49:00,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:00,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:00,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:00,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:00,270 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:00,270 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047085224] [2022-03-15 13:49:00,270 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047085224] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:00,270 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:00,270 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:00,270 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625369456] [2022-03-15 13:49:00,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:00,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:00,271 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:00,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:00,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:00,271 INFO L87 Difference]: Start difference. First operand 10399 states and 29314 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:00,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:00,545 INFO L93 Difference]: Finished difference Result 11691 states and 32723 transitions. [2022-03-15 13:49:00,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-15 13:49:00,545 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:00,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:00,581 INFO L225 Difference]: With dead ends: 11691 [2022-03-15 13:49:00,582 INFO L226 Difference]: Without dead ends: 11163 [2022-03-15 13:49:00,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2022-03-15 13:49:00,584 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 206 mSDsluCounter, 2217 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 2515 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:00,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 2515 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:00,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11163 states. [2022-03-15 13:49:00,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11163 to 10403. [2022-03-15 13:49:00,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10403 states, 10402 states have (on average 2.818784849067487) internal successors, (29321), 10402 states have internal predecessors, (29321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:00,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10403 states to 10403 states and 29321 transitions. [2022-03-15 13:49:00,869 INFO L78 Accepts]: Start accepts. Automaton has 10403 states and 29321 transitions. Word has length 101 [2022-03-15 13:49:00,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:00,870 INFO L470 AbstractCegarLoop]: Abstraction has 10403 states and 29321 transitions. [2022-03-15 13:49:00,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:00,870 INFO L276 IsEmpty]: Start isEmpty. Operand 10403 states and 29321 transitions. [2022-03-15 13:49:00,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:00,886 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:00,886 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:00,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-15 13:49:00,886 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:00,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:00,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1737804988, now seen corresponding path program 3 times [2022-03-15 13:49:00,887 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:00,887 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390005668] [2022-03-15 13:49:00,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:00,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:00,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:01,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:01,003 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:01,003 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390005668] [2022-03-15 13:49:01,003 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390005668] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:01,003 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:01,003 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:01,003 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079003393] [2022-03-15 13:49:01,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:01,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:01,004 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:01,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:01,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:01,004 INFO L87 Difference]: Start difference. First operand 10403 states and 29321 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:01,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:01,237 INFO L93 Difference]: Finished difference Result 11527 states and 32293 transitions. [2022-03-15 13:49:01,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:49:01,238 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:01,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:01,276 INFO L225 Difference]: With dead ends: 11527 [2022-03-15 13:49:01,276 INFO L226 Difference]: Without dead ends: 11042 [2022-03-15 13:49:01,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:49:01,277 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 166 mSDsluCounter, 2158 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 2450 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:01,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 2450 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:01,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11042 states. [2022-03-15 13:49:01,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11042 to 10407. [2022-03-15 13:49:01,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10407 states, 10406 states have (on average 2.818374014991351) internal successors, (29328), 10406 states have internal predecessors, (29328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:01,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10407 states to 10407 states and 29328 transitions. [2022-03-15 13:49:01,502 INFO L78 Accepts]: Start accepts. Automaton has 10407 states and 29328 transitions. Word has length 101 [2022-03-15 13:49:01,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:01,502 INFO L470 AbstractCegarLoop]: Abstraction has 10407 states and 29328 transitions. [2022-03-15 13:49:01,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:01,503 INFO L276 IsEmpty]: Start isEmpty. Operand 10407 states and 29328 transitions. [2022-03-15 13:49:01,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:01,518 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:01,518 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:01,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-15 13:49:01,519 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:01,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:01,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1056184334, now seen corresponding path program 4 times [2022-03-15 13:49:01,519 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:01,519 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645579471] [2022-03-15 13:49:01,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:01,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:01,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:01,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:01,613 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:01,613 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645579471] [2022-03-15 13:49:01,613 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645579471] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:01,613 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:01,613 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:01,614 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331132112] [2022-03-15 13:49:01,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:01,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:01,614 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:01,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:01,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:01,614 INFO L87 Difference]: Start difference. First operand 10407 states and 29328 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:01,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:01,832 INFO L93 Difference]: Finished difference Result 11461 states and 32116 transitions. [2022-03-15 13:49:01,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 13:49:01,833 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:01,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:01,854 INFO L225 Difference]: With dead ends: 11461 [2022-03-15 13:49:01,855 INFO L226 Difference]: Without dead ends: 10953 [2022-03-15 13:49:01,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:49:01,855 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 161 mSDsluCounter, 1784 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 2076 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:01,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 2076 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:01,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10953 states. [2022-03-15 13:49:02,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10953 to 10381. [2022-03-15 13:49:02,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10381 states, 10380 states have (on average 2.8197495183044317) internal successors, (29269), 10380 states have internal predecessors, (29269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:02,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10381 states to 10381 states and 29269 transitions. [2022-03-15 13:49:02,066 INFO L78 Accepts]: Start accepts. Automaton has 10381 states and 29269 transitions. Word has length 101 [2022-03-15 13:49:02,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:02,066 INFO L470 AbstractCegarLoop]: Abstraction has 10381 states and 29269 transitions. [2022-03-15 13:49:02,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:02,067 INFO L276 IsEmpty]: Start isEmpty. Operand 10381 states and 29269 transitions. [2022-03-15 13:49:02,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:02,082 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:02,082 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:02,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-15 13:49:02,083 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:02,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:02,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1996165324, now seen corresponding path program 5 times [2022-03-15 13:49:02,083 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:02,083 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110061454] [2022-03-15 13:49:02,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:02,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:02,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:02,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:02,178 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:02,178 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110061454] [2022-03-15 13:49:02,178 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110061454] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:02,178 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:02,178 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:02,178 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138124143] [2022-03-15 13:49:02,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:02,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:02,179 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:02,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:02,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:02,179 INFO L87 Difference]: Start difference. First operand 10381 states and 29269 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:02,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:02,385 INFO L93 Difference]: Finished difference Result 11569 states and 32417 transitions. [2022-03-15 13:49:02,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:49:02,385 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:02,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:02,406 INFO L225 Difference]: With dead ends: 11569 [2022-03-15 13:49:02,407 INFO L226 Difference]: Without dead ends: 11084 [2022-03-15 13:49:02,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:49:02,409 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 114 mSDsluCounter, 1912 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 2161 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:02,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 2161 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:02,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11084 states. [2022-03-15 13:49:02,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11084 to 10393. [2022-03-15 13:49:02,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10393 states, 10392 states have (on average 2.819284064665127) internal successors, (29298), 10392 states have internal predecessors, (29298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:02,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10393 states to 10393 states and 29298 transitions. [2022-03-15 13:49:02,628 INFO L78 Accepts]: Start accepts. Automaton has 10393 states and 29298 transitions. Word has length 101 [2022-03-15 13:49:02,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:02,628 INFO L470 AbstractCegarLoop]: Abstraction has 10393 states and 29298 transitions. [2022-03-15 13:49:02,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:02,628 INFO L276 IsEmpty]: Start isEmpty. Operand 10393 states and 29298 transitions. [2022-03-15 13:49:02,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:02,645 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:02,645 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:02,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-15 13:49:02,645 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:02,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:02,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1314544670, now seen corresponding path program 6 times [2022-03-15 13:49:02,646 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:02,646 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432233541] [2022-03-15 13:49:02,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:02,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:02,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:02,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:02,789 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:02,789 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432233541] [2022-03-15 13:49:02,789 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432233541] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:02,789 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:02,789 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:02,789 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076116374] [2022-03-15 13:49:02,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:02,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:02,790 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:02,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:02,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:02,790 INFO L87 Difference]: Start difference. First operand 10393 states and 29298 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:03,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:03,029 INFO L93 Difference]: Finished difference Result 11527 states and 32306 transitions. [2022-03-15 13:49:03,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:49:03,029 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:03,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:03,051 INFO L225 Difference]: With dead ends: 11527 [2022-03-15 13:49:03,051 INFO L226 Difference]: Without dead ends: 11041 [2022-03-15 13:49:03,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:49:03,052 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 106 mSDsluCounter, 1832 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 2087 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:03,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 2087 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:03,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11041 states. [2022-03-15 13:49:03,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11041 to 10389. [2022-03-15 13:49:03,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10389 states, 10388 states have (on average 2.8193107431651905) internal successors, (29287), 10388 states have internal predecessors, (29287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:03,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10389 states to 10389 states and 29287 transitions. [2022-03-15 13:49:03,272 INFO L78 Accepts]: Start accepts. Automaton has 10389 states and 29287 transitions. Word has length 101 [2022-03-15 13:49:03,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:03,272 INFO L470 AbstractCegarLoop]: Abstraction has 10389 states and 29287 transitions. [2022-03-15 13:49:03,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:03,272 INFO L276 IsEmpty]: Start isEmpty. Operand 10389 states and 29287 transitions. [2022-03-15 13:49:03,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:03,289 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:03,289 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:03,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-15 13:49:03,289 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:03,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:03,289 INFO L85 PathProgramCache]: Analyzing trace with hash -163430860, now seen corresponding path program 7 times [2022-03-15 13:49:03,290 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:03,290 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950380169] [2022-03-15 13:49:03,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:03,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:03,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:03,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:03,385 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:03,385 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950380169] [2022-03-15 13:49:03,385 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950380169] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:03,385 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:03,385 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:03,386 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233660648] [2022-03-15 13:49:03,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:03,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:03,386 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:03,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:03,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:03,386 INFO L87 Difference]: Start difference. First operand 10389 states and 29287 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:03,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:03,622 INFO L93 Difference]: Finished difference Result 11627 states and 32565 transitions. [2022-03-15 13:49:03,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-15 13:49:03,622 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:03,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:03,642 INFO L225 Difference]: With dead ends: 11627 [2022-03-15 13:49:03,642 INFO L226 Difference]: Without dead ends: 11101 [2022-03-15 13:49:03,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:49:03,643 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 144 mSDsluCounter, 1457 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1717 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:03,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 1717 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:03,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11101 states. [2022-03-15 13:49:03,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11101 to 10385. [2022-03-15 13:49:03,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10385 states, 10384 states have (on average 2.819337442218798) internal successors, (29276), 10384 states have internal predecessors, (29276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:03,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10385 states to 10385 states and 29276 transitions. [2022-03-15 13:49:03,878 INFO L78 Accepts]: Start accepts. Automaton has 10385 states and 29276 transitions. Word has length 101 [2022-03-15 13:49:03,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:03,878 INFO L470 AbstractCegarLoop]: Abstraction has 10385 states and 29276 transitions. [2022-03-15 13:49:03,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:03,878 INFO L276 IsEmpty]: Start isEmpty. Operand 10385 states and 29276 transitions. [2022-03-15 13:49:03,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:03,892 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:03,892 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:03,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-15 13:49:03,892 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:03,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:03,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1465189348, now seen corresponding path program 8 times [2022-03-15 13:49:03,893 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:03,893 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422570513] [2022-03-15 13:49:03,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:03,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:03,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:03,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:03,979 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:03,979 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422570513] [2022-03-15 13:49:03,979 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422570513] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:03,979 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:03,979 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:03,979 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622511924] [2022-03-15 13:49:03,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:03,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:03,980 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:03,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:03,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:03,980 INFO L87 Difference]: Start difference. First operand 10385 states and 29276 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:04,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:04,203 INFO L93 Difference]: Finished difference Result 11677 states and 32685 transitions. [2022-03-15 13:49:04,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 13:49:04,204 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:04,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:04,223 INFO L225 Difference]: With dead ends: 11677 [2022-03-15 13:49:04,223 INFO L226 Difference]: Without dead ends: 11149 [2022-03-15 13:49:04,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-03-15 13:49:04,224 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 159 mSDsluCounter, 1443 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 1711 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:04,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 1711 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:04,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11149 states. [2022-03-15 13:49:04,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11149 to 10389. [2022-03-15 13:49:04,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10389 states, 10388 states have (on average 2.8189256834809395) internal successors, (29283), 10388 states have internal predecessors, (29283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:04,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10389 states to 10389 states and 29283 transitions. [2022-03-15 13:49:04,394 INFO L78 Accepts]: Start accepts. Automaton has 10389 states and 29283 transitions. Word has length 101 [2022-03-15 13:49:04,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:04,394 INFO L470 AbstractCegarLoop]: Abstraction has 10389 states and 29283 transitions. [2022-03-15 13:49:04,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:04,395 INFO L276 IsEmpty]: Start isEmpty. Operand 10389 states and 29283 transitions. [2022-03-15 13:49:04,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:04,408 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:04,409 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:04,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-15 13:49:04,409 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:04,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:04,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1042842994, now seen corresponding path program 9 times [2022-03-15 13:49:04,409 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:04,409 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720219069] [2022-03-15 13:49:04,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:04,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:04,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:04,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:04,484 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:04,484 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720219069] [2022-03-15 13:49:04,485 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720219069] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:04,485 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:04,485 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:04,485 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121748987] [2022-03-15 13:49:04,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:04,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:04,485 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:04,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:04,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:04,485 INFO L87 Difference]: Start difference. First operand 10389 states and 29283 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:04,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:04,731 INFO L93 Difference]: Finished difference Result 11521 states and 32277 transitions. [2022-03-15 13:49:04,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:49:04,731 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:04,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:04,751 INFO L225 Difference]: With dead ends: 11521 [2022-03-15 13:49:04,751 INFO L226 Difference]: Without dead ends: 11036 [2022-03-15 13:49:04,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:49:04,752 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 122 mSDsluCounter, 1909 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 2159 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:04,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 2159 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:04,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11036 states. [2022-03-15 13:49:04,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11036 to 10393. [2022-03-15 13:49:04,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10393 states, 10392 states have (on average 2.8185142417244036) internal successors, (29290), 10392 states have internal predecessors, (29290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:04,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10393 states to 10393 states and 29290 transitions. [2022-03-15 13:49:04,935 INFO L78 Accepts]: Start accepts. Automaton has 10393 states and 29290 transitions. Word has length 101 [2022-03-15 13:49:04,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:04,936 INFO L470 AbstractCegarLoop]: Abstraction has 10393 states and 29290 transitions. [2022-03-15 13:49:04,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:04,936 INFO L276 IsEmpty]: Start isEmpty. Operand 10393 states and 29290 transitions. [2022-03-15 13:49:04,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:04,950 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:04,950 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:04,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-15 13:49:04,950 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:04,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:04,950 INFO L85 PathProgramCache]: Analyzing trace with hash -361222340, now seen corresponding path program 10 times [2022-03-15 13:49:04,950 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:04,951 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155058445] [2022-03-15 13:49:04,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:04,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:04,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:05,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:05,027 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:05,027 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155058445] [2022-03-15 13:49:05,027 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155058445] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:05,027 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:05,027 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:05,027 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437493086] [2022-03-15 13:49:05,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:05,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:05,027 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:05,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:05,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:05,028 INFO L87 Difference]: Start difference. First operand 10393 states and 29290 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:05,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:05,243 INFO L93 Difference]: Finished difference Result 11447 states and 32078 transitions. [2022-03-15 13:49:05,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:49:05,243 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:05,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:05,263 INFO L225 Difference]: With dead ends: 11447 [2022-03-15 13:49:05,263 INFO L226 Difference]: Without dead ends: 10935 [2022-03-15 13:49:05,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:49:05,264 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 109 mSDsluCounter, 1876 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 2126 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:05,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 2126 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:05,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10935 states. [2022-03-15 13:49:05,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10935 to 10363. [2022-03-15 13:49:05,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10363 states, 10362 states have (on average 2.820304960432349) internal successors, (29224), 10362 states have internal predecessors, (29224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:05,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10363 states to 10363 states and 29224 transitions. [2022-03-15 13:49:05,447 INFO L78 Accepts]: Start accepts. Automaton has 10363 states and 29224 transitions. Word has length 101 [2022-03-15 13:49:05,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:05,447 INFO L470 AbstractCegarLoop]: Abstraction has 10363 states and 29224 transitions. [2022-03-15 13:49:05,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:05,448 INFO L276 IsEmpty]: Start isEmpty. Operand 10363 states and 29224 transitions. [2022-03-15 13:49:05,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:05,462 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:05,462 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:05,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-15 13:49:05,462 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:05,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:05,462 INFO L85 PathProgramCache]: Analyzing trace with hash -774742998, now seen corresponding path program 11 times [2022-03-15 13:49:05,462 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:05,462 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074764330] [2022-03-15 13:49:05,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:05,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:05,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:05,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:05,548 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:05,549 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074764330] [2022-03-15 13:49:05,549 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074764330] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:05,549 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:05,549 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:05,549 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870150915] [2022-03-15 13:49:05,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:05,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:05,549 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:05,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:05,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:05,550 INFO L87 Difference]: Start difference. First operand 10363 states and 29224 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:05,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:05,771 INFO L93 Difference]: Finished difference Result 11966 states and 33522 transitions. [2022-03-15 13:49:05,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:49:05,772 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:05,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:05,792 INFO L225 Difference]: With dead ends: 11966 [2022-03-15 13:49:05,792 INFO L226 Difference]: Without dead ends: 11481 [2022-03-15 13:49:05,792 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:49:05,793 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 128 mSDsluCounter, 1918 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 2162 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:05,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 2162 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:05,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11481 states. [2022-03-15 13:49:05,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11481 to 10383. [2022-03-15 13:49:05,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10383 states, 10382 states have (on average 2.8197842419572337) internal successors, (29275), 10382 states have internal predecessors, (29275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:05,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10383 states to 10383 states and 29275 transitions. [2022-03-15 13:49:05,973 INFO L78 Accepts]: Start accepts. Automaton has 10383 states and 29275 transitions. Word has length 101 [2022-03-15 13:49:05,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:05,973 INFO L470 AbstractCegarLoop]: Abstraction has 10383 states and 29275 transitions. [2022-03-15 13:49:05,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:05,973 INFO L276 IsEmpty]: Start isEmpty. Operand 10383 states and 29275 transitions. [2022-03-15 13:49:05,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:05,988 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:05,988 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:05,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-15 13:49:05,988 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:05,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:05,989 INFO L85 PathProgramCache]: Analyzing trace with hash -93122344, now seen corresponding path program 12 times [2022-03-15 13:49:05,989 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:05,989 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765955522] [2022-03-15 13:49:05,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:05,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:05,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:06,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:06,068 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:06,068 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765955522] [2022-03-15 13:49:06,068 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765955522] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:06,068 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:06,068 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:06,068 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10395047] [2022-03-15 13:49:06,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:06,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:06,069 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:06,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:06,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:06,069 INFO L87 Difference]: Start difference. First operand 10383 states and 29275 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:06,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:06,329 INFO L93 Difference]: Finished difference Result 11924 states and 33411 transitions. [2022-03-15 13:49:06,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:49:06,329 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:06,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:06,401 INFO L225 Difference]: With dead ends: 11924 [2022-03-15 13:49:06,401 INFO L226 Difference]: Without dead ends: 11438 [2022-03-15 13:49:06,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:49:06,403 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 118 mSDsluCounter, 2094 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 2342 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:06,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 2342 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:06,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11438 states. [2022-03-15 13:49:06,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11438 to 10379. [2022-03-15 13:49:06,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10379 states, 10378 states have (on average 2.8198111389477742) internal successors, (29264), 10378 states have internal predecessors, (29264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:06,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10379 states to 10379 states and 29264 transitions. [2022-03-15 13:49:06,547 INFO L78 Accepts]: Start accepts. Automaton has 10379 states and 29264 transitions. Word has length 101 [2022-03-15 13:49:06,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:06,547 INFO L470 AbstractCegarLoop]: Abstraction has 10379 states and 29264 transitions. [2022-03-15 13:49:06,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:06,547 INFO L276 IsEmpty]: Start isEmpty. Operand 10379 states and 29264 transitions. [2022-03-15 13:49:06,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:06,561 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:06,561 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:06,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-15 13:49:06,561 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:06,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:06,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1057991466, now seen corresponding path program 13 times [2022-03-15 13:49:06,562 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:06,562 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543809833] [2022-03-15 13:49:06,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:06,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:06,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:06,665 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:06,665 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543809833] [2022-03-15 13:49:06,665 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543809833] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:06,665 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:06,666 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:06,666 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598238224] [2022-03-15 13:49:06,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:06,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:06,666 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:06,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:06,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:06,666 INFO L87 Difference]: Start difference. First operand 10379 states and 29264 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:06,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:06,901 INFO L93 Difference]: Finished difference Result 12056 states and 33758 transitions. [2022-03-15 13:49:06,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 13:49:06,901 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:06,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:06,920 INFO L225 Difference]: With dead ends: 12056 [2022-03-15 13:49:06,920 INFO L226 Difference]: Without dead ends: 11530 [2022-03-15 13:49:06,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-03-15 13:49:06,921 INFO L933 BasicCegarLoop]: 292 mSDtfsCounter, 156 mSDsluCounter, 1426 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 1689 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:06,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 1689 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:06,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11530 states. [2022-03-15 13:49:07,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11530 to 10375. [2022-03-15 13:49:07,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10375 states, 10374 states have (on average 2.8198380566801617) internal successors, (29253), 10374 states have internal predecessors, (29253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:07,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10375 states to 10375 states and 29253 transitions. [2022-03-15 13:49:07,083 INFO L78 Accepts]: Start accepts. Automaton has 10375 states and 29253 transitions. Word has length 101 [2022-03-15 13:49:07,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:07,083 INFO L470 AbstractCegarLoop]: Abstraction has 10375 states and 29253 transitions. [2022-03-15 13:49:07,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:07,083 INFO L276 IsEmpty]: Start isEmpty. Operand 10375 states and 29253 transitions. [2022-03-15 13:49:07,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:07,097 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:07,097 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:07,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-15 13:49:07,097 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:07,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:07,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1608355622, now seen corresponding path program 14 times [2022-03-15 13:49:07,098 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:07,098 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58911477] [2022-03-15 13:49:07,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:07,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:07,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:07,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:07,179 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:07,179 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58911477] [2022-03-15 13:49:07,179 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58911477] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:07,179 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:07,179 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:07,179 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595396888] [2022-03-15 13:49:07,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:07,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:07,179 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:07,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:07,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:07,180 INFO L87 Difference]: Start difference. First operand 10375 states and 29253 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:07,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:07,407 INFO L93 Difference]: Finished difference Result 12058 states and 33746 transitions. [2022-03-15 13:49:07,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-15 13:49:07,408 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:07,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:07,425 INFO L225 Difference]: With dead ends: 12058 [2022-03-15 13:49:07,425 INFO L226 Difference]: Without dead ends: 11530 [2022-03-15 13:49:07,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-03-15 13:49:07,426 INFO L933 BasicCegarLoop]: 289 mSDtfsCounter, 173 mSDsluCounter, 1730 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 1981 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:07,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 1981 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:07,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11530 states. [2022-03-15 13:49:07,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11530 to 10379. [2022-03-15 13:49:07,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10379 states, 10378 states have (on average 2.819425708228946) internal successors, (29260), 10378 states have internal predecessors, (29260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:07,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10379 states to 10379 states and 29260 transitions. [2022-03-15 13:49:07,566 INFO L78 Accepts]: Start accepts. Automaton has 10379 states and 29260 transitions. Word has length 101 [2022-03-15 13:49:07,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:07,566 INFO L470 AbstractCegarLoop]: Abstraction has 10379 states and 29260 transitions. [2022-03-15 13:49:07,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:07,566 INFO L276 IsEmpty]: Start isEmpty. Operand 10379 states and 29260 transitions. [2022-03-15 13:49:07,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:07,579 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:07,579 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:07,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-15 13:49:07,580 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:07,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:07,580 INFO L85 PathProgramCache]: Analyzing trace with hash 178579332, now seen corresponding path program 15 times [2022-03-15 13:49:07,580 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:07,580 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715525724] [2022-03-15 13:49:07,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:07,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:07,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:07,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:07,679 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:07,679 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715525724] [2022-03-15 13:49:07,679 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715525724] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:07,679 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:07,679 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:07,679 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203170020] [2022-03-15 13:49:07,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:07,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:07,679 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:07,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:07,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:07,680 INFO L87 Difference]: Start difference. First operand 10379 states and 29260 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:07,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:07,893 INFO L93 Difference]: Finished difference Result 11926 states and 33404 transitions. [2022-03-15 13:49:07,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:49:07,893 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:07,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:07,914 INFO L225 Difference]: With dead ends: 11926 [2022-03-15 13:49:07,914 INFO L226 Difference]: Without dead ends: 11441 [2022-03-15 13:49:07,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:49:07,915 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 144 mSDsluCounter, 1682 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1925 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:07,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 1925 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:07,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11441 states. [2022-03-15 13:49:08,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11441 to 10383. [2022-03-15 13:49:08,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10383 states, 10382 states have (on average 2.8190136775187824) internal successors, (29267), 10382 states have internal predecessors, (29267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:08,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10383 states to 10383 states and 29267 transitions. [2022-03-15 13:49:08,088 INFO L78 Accepts]: Start accepts. Automaton has 10383 states and 29267 transitions. Word has length 101 [2022-03-15 13:49:08,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:08,088 INFO L470 AbstractCegarLoop]: Abstraction has 10383 states and 29267 transitions. [2022-03-15 13:49:08,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:08,089 INFO L276 IsEmpty]: Start isEmpty. Operand 10383 states and 29267 transitions. [2022-03-15 13:49:08,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:08,103 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:08,103 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:08,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-15 13:49:08,103 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:08,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:08,103 INFO L85 PathProgramCache]: Analyzing trace with hash 860199986, now seen corresponding path program 16 times [2022-03-15 13:49:08,104 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:08,104 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450854723] [2022-03-15 13:49:08,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:08,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:08,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:08,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:08,205 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:08,205 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450854723] [2022-03-15 13:49:08,205 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450854723] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:08,205 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:08,205 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:08,205 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613172486] [2022-03-15 13:49:08,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:08,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:08,205 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:08,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:08,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:08,206 INFO L87 Difference]: Start difference. First operand 10383 states and 29267 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:08,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:08,407 INFO L93 Difference]: Finished difference Result 11876 states and 33271 transitions. [2022-03-15 13:49:08,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:49:08,407 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:08,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:08,426 INFO L225 Difference]: With dead ends: 11876 [2022-03-15 13:49:08,426 INFO L226 Difference]: Without dead ends: 11382 [2022-03-15 13:49:08,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2022-03-15 13:49:08,427 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 117 mSDsluCounter, 1896 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 2143 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:08,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 2143 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:08,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11382 states. [2022-03-15 13:49:08,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11382 to 10371. [2022-03-15 13:49:08,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10371 states, 10370 states have (on average 2.819864995178399) internal successors, (29242), 10370 states have internal predecessors, (29242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:08,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10371 states to 10371 states and 29242 transitions. [2022-03-15 13:49:08,585 INFO L78 Accepts]: Start accepts. Automaton has 10371 states and 29242 transitions. Word has length 101 [2022-03-15 13:49:08,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:08,585 INFO L470 AbstractCegarLoop]: Abstraction has 10371 states and 29242 transitions. [2022-03-15 13:49:08,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:08,585 INFO L276 IsEmpty]: Start isEmpty. Operand 10371 states and 29242 transitions. [2022-03-15 13:49:08,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:08,599 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:08,600 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:08,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-15 13:49:08,600 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:08,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:08,600 INFO L85 PathProgramCache]: Analyzing trace with hash 122641612, now seen corresponding path program 17 times [2022-03-15 13:49:08,600 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:08,600 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721811616] [2022-03-15 13:49:08,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:08,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:08,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:08,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:08,682 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:08,682 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721811616] [2022-03-15 13:49:08,682 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721811616] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:08,682 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:08,682 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:08,682 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84562464] [2022-03-15 13:49:08,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:08,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:08,683 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:08,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:08,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:08,683 INFO L87 Difference]: Start difference. First operand 10371 states and 29242 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:08,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:08,948 INFO L93 Difference]: Finished difference Result 11870 states and 33254 transitions. [2022-03-15 13:49:08,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 13:49:08,949 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:08,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:08,968 INFO L225 Difference]: With dead ends: 11870 [2022-03-15 13:49:08,968 INFO L226 Difference]: Without dead ends: 11385 [2022-03-15 13:49:08,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:49:08,969 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 206 mSDsluCounter, 1773 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 2051 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:08,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 2051 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:08,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11385 states. [2022-03-15 13:49:09,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11385 to 10387. [2022-03-15 13:49:09,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10387 states, 10386 states have (on average 2.819372231850568) internal successors, (29282), 10386 states have internal predecessors, (29282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:09,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10387 states to 10387 states and 29282 transitions. [2022-03-15 13:49:09,140 INFO L78 Accepts]: Start accepts. Automaton has 10387 states and 29282 transitions. Word has length 101 [2022-03-15 13:49:09,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:09,140 INFO L470 AbstractCegarLoop]: Abstraction has 10387 states and 29282 transitions. [2022-03-15 13:49:09,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:09,140 INFO L276 IsEmpty]: Start isEmpty. Operand 10387 states and 29282 transitions. [2022-03-15 13:49:09,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:09,155 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:09,155 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:09,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-15 13:49:09,155 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:09,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:09,156 INFO L85 PathProgramCache]: Analyzing trace with hash 804262266, now seen corresponding path program 18 times [2022-03-15 13:49:09,156 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:09,156 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224502765] [2022-03-15 13:49:09,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:09,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:09,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:09,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:09,244 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:09,244 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224502765] [2022-03-15 13:49:09,244 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224502765] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:09,244 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:09,244 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:09,244 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008520090] [2022-03-15 13:49:09,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:09,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:09,245 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:09,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:09,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:09,245 INFO L87 Difference]: Start difference. First operand 10387 states and 29282 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:09,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:09,432 INFO L93 Difference]: Finished difference Result 11832 states and 33154 transitions. [2022-03-15 13:49:09,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:49:09,432 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:09,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:09,451 INFO L225 Difference]: With dead ends: 11832 [2022-03-15 13:49:09,451 INFO L226 Difference]: Without dead ends: 11346 [2022-03-15 13:49:09,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:49:09,452 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 220 mSDsluCounter, 2007 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 2283 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:09,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 2283 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:09,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11346 states. [2022-03-15 13:49:09,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11346 to 10383. [2022-03-15 13:49:09,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10383 states, 10382 states have (on average 2.8193989597380082) internal successors, (29271), 10382 states have internal predecessors, (29271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:09,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10383 states to 10383 states and 29271 transitions. [2022-03-15 13:49:09,609 INFO L78 Accepts]: Start accepts. Automaton has 10383 states and 29271 transitions. Word has length 101 [2022-03-15 13:49:09,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:09,609 INFO L470 AbstractCegarLoop]: Abstraction has 10383 states and 29271 transitions. [2022-03-15 13:49:09,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:09,609 INFO L276 IsEmpty]: Start isEmpty. Operand 10383 states and 29271 transitions. [2022-03-15 13:49:09,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:09,623 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:09,623 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:09,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-15 13:49:09,623 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:09,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:09,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1955376076, now seen corresponding path program 19 times [2022-03-15 13:49:09,624 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:09,624 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829008153] [2022-03-15 13:49:09,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:09,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:09,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:09,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:09,715 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:09,715 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829008153] [2022-03-15 13:49:09,715 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829008153] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:09,715 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:09,716 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:09,716 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514740430] [2022-03-15 13:49:09,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:09,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:09,716 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:09,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:09,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:09,716 INFO L87 Difference]: Start difference. First operand 10383 states and 29271 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:09,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:09,954 INFO L93 Difference]: Finished difference Result 11868 states and 33249 transitions. [2022-03-15 13:49:09,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-15 13:49:09,954 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:09,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:09,972 INFO L225 Difference]: With dead ends: 11868 [2022-03-15 13:49:09,972 INFO L226 Difference]: Without dead ends: 11342 [2022-03-15 13:49:09,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2022-03-15 13:49:09,973 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 250 mSDsluCounter, 2017 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 2301 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:09,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [250 Valid, 2301 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:09,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11342 states. [2022-03-15 13:49:10,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11342 to 10379. [2022-03-15 13:49:10,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10379 states, 10378 states have (on average 2.819425708228946) internal successors, (29260), 10378 states have internal predecessors, (29260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:10,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10379 states to 10379 states and 29260 transitions. [2022-03-15 13:49:10,143 INFO L78 Accepts]: Start accepts. Automaton has 10379 states and 29260 transitions. Word has length 101 [2022-03-15 13:49:10,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:10,143 INFO L470 AbstractCegarLoop]: Abstraction has 10379 states and 29260 transitions. [2022-03-15 13:49:10,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:10,144 INFO L276 IsEmpty]: Start isEmpty. Operand 10379 states and 29260 transitions. [2022-03-15 13:49:10,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:10,158 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:10,158 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:10,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-15 13:49:10,159 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:10,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:10,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1147543880, now seen corresponding path program 20 times [2022-03-15 13:49:10,159 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:10,159 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689253268] [2022-03-15 13:49:10,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:10,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:10,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:10,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:10,228 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:10,228 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689253268] [2022-03-15 13:49:10,228 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689253268] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:10,228 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:10,228 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:10,228 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513467093] [2022-03-15 13:49:10,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:10,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:10,228 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:10,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:10,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:10,229 INFO L87 Difference]: Start difference. First operand 10379 states and 29260 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:10,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:10,471 INFO L93 Difference]: Finished difference Result 13198 states and 36719 transitions. [2022-03-15 13:49:10,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-15 13:49:10,471 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:10,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:10,492 INFO L225 Difference]: With dead ends: 13198 [2022-03-15 13:49:10,493 INFO L226 Difference]: Without dead ends: 12492 [2022-03-15 13:49:10,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=186, Invalid=570, Unknown=0, NotChecked=0, Total=756 [2022-03-15 13:49:10,493 INFO L933 BasicCegarLoop]: 368 mSDtfsCounter, 467 mSDsluCounter, 2445 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 2775 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:10,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [467 Valid, 2775 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:10,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12492 states. [2022-03-15 13:49:10,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12492 to 10275. [2022-03-15 13:49:10,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10275 states, 10274 states have (on average 2.8221724742067353) internal successors, (28995), 10274 states have internal predecessors, (28995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:10,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10275 states to 10275 states and 28995 transitions. [2022-03-15 13:49:10,661 INFO L78 Accepts]: Start accepts. Automaton has 10275 states and 28995 transitions. Word has length 101 [2022-03-15 13:49:10,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:10,661 INFO L470 AbstractCegarLoop]: Abstraction has 10275 states and 28995 transitions. [2022-03-15 13:49:10,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:10,662 INFO L276 IsEmpty]: Start isEmpty. Operand 10275 states and 28995 transitions. [2022-03-15 13:49:10,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:10,675 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:10,675 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:10,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-15 13:49:10,676 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:10,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:10,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1337178174, now seen corresponding path program 1 times [2022-03-15 13:49:10,676 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:10,676 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756258742] [2022-03-15 13:49:10,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:10,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:10,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:10,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:10,700 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:10,700 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756258742] [2022-03-15 13:49:10,700 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756258742] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:10,700 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:10,700 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 13:49:10,700 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637261223] [2022-03-15 13:49:10,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:10,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 13:49:10,700 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:10,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 13:49:10,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 13:49:10,701 INFO L87 Difference]: Start difference. First operand 10275 states and 28995 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:10,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:10,740 INFO L93 Difference]: Finished difference Result 9393 states and 26084 transitions. [2022-03-15 13:49:10,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 13:49:10,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:10,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:10,756 INFO L225 Difference]: With dead ends: 9393 [2022-03-15 13:49:10,756 INFO L226 Difference]: Without dead ends: 9393 [2022-03-15 13:49:10,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 13:49:10,756 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 130 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:10,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 213 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:49:10,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9393 states. [2022-03-15 13:49:10,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9393 to 9393. [2022-03-15 13:49:10,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9393 states, 9392 states have (on average 2.7772572402044293) internal successors, (26084), 9392 states have internal predecessors, (26084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:10,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9393 states to 9393 states and 26084 transitions. [2022-03-15 13:49:10,891 INFO L78 Accepts]: Start accepts. Automaton has 9393 states and 26084 transitions. Word has length 101 [2022-03-15 13:49:10,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:10,891 INFO L470 AbstractCegarLoop]: Abstraction has 9393 states and 26084 transitions. [2022-03-15 13:49:10,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:10,891 INFO L276 IsEmpty]: Start isEmpty. Operand 9393 states and 26084 transitions. [2022-03-15 13:49:10,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:10,905 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:10,905 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:10,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-15 13:49:10,905 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:10,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:10,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1661801566, now seen corresponding path program 1 times [2022-03-15 13:49:10,906 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:10,906 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385058665] [2022-03-15 13:49:10,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:10,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:10,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:10,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:10,990 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:10,990 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385058665] [2022-03-15 13:49:10,990 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385058665] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:10,991 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:10,991 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:10,991 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997455726] [2022-03-15 13:49:10,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:10,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:10,991 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:10,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:10,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:10,992 INFO L87 Difference]: Start difference. First operand 9393 states and 26084 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:11,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:11,298 INFO L93 Difference]: Finished difference Result 10497 states and 28835 transitions. [2022-03-15 13:49:11,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-15 13:49:11,298 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:11,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:11,312 INFO L225 Difference]: With dead ends: 10497 [2022-03-15 13:49:11,312 INFO L226 Difference]: Without dead ends: 9786 [2022-03-15 13:49:11,312 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=186, Invalid=570, Unknown=0, NotChecked=0, Total=756 [2022-03-15 13:49:11,313 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 247 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 1490 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:11,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 1490 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:11,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9786 states. [2022-03-15 13:49:11,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9786 to 9204. [2022-03-15 13:49:11,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9204 states, 9203 states have (on average 2.783440182549169) internal successors, (25616), 9203 states have internal predecessors, (25616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:11,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9204 states to 9204 states and 25616 transitions. [2022-03-15 13:49:11,456 INFO L78 Accepts]: Start accepts. Automaton has 9204 states and 25616 transitions. Word has length 101 [2022-03-15 13:49:11,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:11,456 INFO L470 AbstractCegarLoop]: Abstraction has 9204 states and 25616 transitions. [2022-03-15 13:49:11,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:11,457 INFO L276 IsEmpty]: Start isEmpty. Operand 9204 states and 25616 transitions. [2022-03-15 13:49:11,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:11,468 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:11,468 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:11,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-15 13:49:11,469 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:11,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:11,469 INFO L85 PathProgramCache]: Analyzing trace with hash -2035505446, now seen corresponding path program 2 times [2022-03-15 13:49:11,469 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:11,469 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423570354] [2022-03-15 13:49:11,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:11,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:11,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:11,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:11,554 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:11,554 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423570354] [2022-03-15 13:49:11,554 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423570354] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:11,554 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:11,554 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:11,555 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641004347] [2022-03-15 13:49:11,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:11,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:11,555 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:11,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:11,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:11,555 INFO L87 Difference]: Start difference. First operand 9204 states and 25616 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:11,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:11,826 INFO L93 Difference]: Finished difference Result 10091 states and 27888 transitions. [2022-03-15 13:49:11,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-15 13:49:11,826 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:11,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:11,842 INFO L225 Difference]: With dead ends: 10091 [2022-03-15 13:49:11,842 INFO L226 Difference]: Without dead ends: 9569 [2022-03-15 13:49:11,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2022-03-15 13:49:11,843 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 145 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 2147 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:11,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 2147 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:11,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9569 states. [2022-03-15 13:49:11,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9569 to 9208. [2022-03-15 13:49:11,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9208 states, 9207 states have (on average 2.7829912023460412) internal successors, (25623), 9207 states have internal predecessors, (25623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:12,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9208 states to 9208 states and 25623 transitions. [2022-03-15 13:49:12,003 INFO L78 Accepts]: Start accepts. Automaton has 9208 states and 25623 transitions. Word has length 101 [2022-03-15 13:49:12,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:12,003 INFO L470 AbstractCegarLoop]: Abstraction has 9208 states and 25623 transitions. [2022-03-15 13:49:12,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:12,004 INFO L276 IsEmpty]: Start isEmpty. Operand 9208 states and 25623 transitions. [2022-03-15 13:49:12,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:12,015 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:12,015 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:12,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-15 13:49:12,016 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:12,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:12,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1953590340, now seen corresponding path program 3 times [2022-03-15 13:49:12,016 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:12,016 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884577054] [2022-03-15 13:49:12,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:12,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:12,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:12,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:12,102 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:12,102 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884577054] [2022-03-15 13:49:12,102 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884577054] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:12,102 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:12,102 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:12,103 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372723289] [2022-03-15 13:49:12,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:12,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:12,103 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:12,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:12,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:12,103 INFO L87 Difference]: Start difference. First operand 9208 states and 25623 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:12,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:12,298 INFO L93 Difference]: Finished difference Result 9966 states and 27559 transitions. [2022-03-15 13:49:12,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:49:12,298 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:12,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:12,313 INFO L225 Difference]: With dead ends: 9966 [2022-03-15 13:49:12,313 INFO L226 Difference]: Without dead ends: 9487 [2022-03-15 13:49:12,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:49:12,314 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 103 mSDsluCounter, 1453 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 1673 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:12,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 1673 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:12,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9487 states. [2022-03-15 13:49:12,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9487 to 9212. [2022-03-15 13:49:12,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9212 states, 9211 states have (on average 2.782542612094235) internal successors, (25630), 9211 states have internal predecessors, (25630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:12,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9212 states to 9212 states and 25630 transitions. [2022-03-15 13:49:12,462 INFO L78 Accepts]: Start accepts. Automaton has 9212 states and 25630 transitions. Word has length 101 [2022-03-15 13:49:12,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:12,462 INFO L470 AbstractCegarLoop]: Abstraction has 9212 states and 25630 transitions. [2022-03-15 13:49:12,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:12,462 INFO L276 IsEmpty]: Start isEmpty. Operand 9212 states and 25630 transitions. [2022-03-15 13:49:12,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:12,474 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:12,474 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:12,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-15 13:49:12,474 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:12,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:12,474 INFO L85 PathProgramCache]: Analyzing trace with hash -713853838, now seen corresponding path program 4 times [2022-03-15 13:49:12,474 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:12,475 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488932080] [2022-03-15 13:49:12,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:12,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:12,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:12,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:12,553 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:12,553 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488932080] [2022-03-15 13:49:12,553 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488932080] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:12,553 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:12,553 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:12,553 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069182491] [2022-03-15 13:49:12,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:12,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:12,555 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:12,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:12,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:12,555 INFO L87 Difference]: Start difference. First operand 9212 states and 25630 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:12,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:12,715 INFO L93 Difference]: Finished difference Result 9908 states and 27404 transitions. [2022-03-15 13:49:12,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 13:49:12,715 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:12,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:12,730 INFO L225 Difference]: With dead ends: 9908 [2022-03-15 13:49:12,730 INFO L226 Difference]: Without dead ends: 9406 [2022-03-15 13:49:12,731 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:49:12,731 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 91 mSDsluCounter, 1185 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 1402 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:12,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 1402 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:49:12,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9406 states. [2022-03-15 13:49:12,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9406 to 9186. [2022-03-15 13:49:12,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9186 states, 9185 states have (on average 2.7839956450734893) internal successors, (25571), 9185 states have internal predecessors, (25571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:12,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9186 states to 9186 states and 25571 transitions. [2022-03-15 13:49:12,905 INFO L78 Accepts]: Start accepts. Automaton has 9186 states and 25571 transitions. Word has length 101 [2022-03-15 13:49:12,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:12,905 INFO L470 AbstractCegarLoop]: Abstraction has 9186 states and 25571 transitions. [2022-03-15 13:49:12,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:12,906 INFO L276 IsEmpty]: Start isEmpty. Operand 9186 states and 25571 transitions. [2022-03-15 13:49:12,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:12,919 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:12,919 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:12,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-15 13:49:12,919 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:12,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:12,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1508449932, now seen corresponding path program 5 times [2022-03-15 13:49:12,919 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:12,920 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653520321] [2022-03-15 13:49:12,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:12,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:12,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:13,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:13,009 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:13,009 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653520321] [2022-03-15 13:49:13,009 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653520321] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:13,009 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:13,009 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:13,010 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981459133] [2022-03-15 13:49:13,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:13,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:13,010 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:13,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:13,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:13,010 INFO L87 Difference]: Start difference. First operand 9186 states and 25571 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:13,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:13,204 INFO L93 Difference]: Finished difference Result 10016 states and 27705 transitions. [2022-03-15 13:49:13,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:49:13,205 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:13,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:13,218 INFO L225 Difference]: With dead ends: 10016 [2022-03-15 13:49:13,218 INFO L226 Difference]: Without dead ends: 9537 [2022-03-15 13:49:13,219 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2022-03-15 13:49:13,219 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 99 mSDsluCounter, 1409 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 1616 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:13,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 1616 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:13,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9537 states. [2022-03-15 13:49:13,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9537 to 9198. [2022-03-15 13:49:13,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9198 states, 9197 states have (on average 2.7835163640317493) internal successors, (25600), 9197 states have internal predecessors, (25600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:13,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9198 states to 9198 states and 25600 transitions. [2022-03-15 13:49:13,382 INFO L78 Accepts]: Start accepts. Automaton has 9198 states and 25600 transitions. Word has length 101 [2022-03-15 13:49:13,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:13,383 INFO L470 AbstractCegarLoop]: Abstraction has 9198 states and 25600 transitions. [2022-03-15 13:49:13,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:13,383 INFO L276 IsEmpty]: Start isEmpty. Operand 9198 states and 25600 transitions. [2022-03-15 13:49:13,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:13,395 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:13,395 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:13,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-15 13:49:13,395 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:13,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:13,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1158994246, now seen corresponding path program 6 times [2022-03-15 13:49:13,396 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:13,396 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269686230] [2022-03-15 13:49:13,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:13,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:13,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:13,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:13,500 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:13,500 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269686230] [2022-03-15 13:49:13,500 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269686230] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:13,500 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:13,500 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:13,500 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956774163] [2022-03-15 13:49:13,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:13,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:13,501 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:13,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:13,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:13,501 INFO L87 Difference]: Start difference. First operand 9198 states and 25600 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:13,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:13,718 INFO L93 Difference]: Finished difference Result 9974 states and 27594 transitions. [2022-03-15 13:49:13,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:49:13,719 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:13,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:13,735 INFO L225 Difference]: With dead ends: 9974 [2022-03-15 13:49:13,736 INFO L226 Difference]: Without dead ends: 9494 [2022-03-15 13:49:13,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:49:13,736 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 87 mSDsluCounter, 1351 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1565 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:13,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 1565 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:13,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9494 states. [2022-03-15 13:49:13,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9494 to 9194. [2022-03-15 13:49:13,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9194 states, 9193 states have (on average 2.783530947460024) internal successors, (25589), 9193 states have internal predecessors, (25589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:13,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9194 states to 9194 states and 25589 transitions. [2022-03-15 13:49:13,869 INFO L78 Accepts]: Start accepts. Automaton has 9194 states and 25589 transitions. Word has length 101 [2022-03-15 13:49:13,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:13,869 INFO L470 AbstractCegarLoop]: Abstraction has 9194 states and 25589 transitions. [2022-03-15 13:49:13,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:13,869 INFO L276 IsEmpty]: Start isEmpty. Operand 9194 states and 25589 transitions. [2022-03-15 13:49:13,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:13,881 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:13,881 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:13,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-15 13:49:13,881 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:13,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:13,881 INFO L85 PathProgramCache]: Analyzing trace with hash 2014915710, now seen corresponding path program 7 times [2022-03-15 13:49:13,881 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:13,881 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075743273] [2022-03-15 13:49:13,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:13,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:13,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:13,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:13,950 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:13,950 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075743273] [2022-03-15 13:49:13,950 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075743273] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:13,950 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:13,950 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:13,950 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420368104] [2022-03-15 13:49:13,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:13,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:13,950 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:13,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:13,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:13,951 INFO L87 Difference]: Start difference. First operand 9194 states and 25589 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:14,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:14,159 INFO L93 Difference]: Finished difference Result 10122 states and 27981 transitions. [2022-03-15 13:49:14,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-15 13:49:14,160 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:14,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:14,175 INFO L225 Difference]: With dead ends: 10122 [2022-03-15 13:49:14,175 INFO L226 Difference]: Without dead ends: 9602 [2022-03-15 13:49:14,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-03-15 13:49:14,176 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 142 mSDsluCounter, 1230 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:14,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 1444 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:14,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9602 states. [2022-03-15 13:49:14,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9602 to 9190. [2022-03-15 13:49:14,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9190 states, 9189 states have (on average 2.783545543584721) internal successors, (25578), 9189 states have internal predecessors, (25578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:14,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9190 states to 9190 states and 25578 transitions. [2022-03-15 13:49:14,331 INFO L78 Accepts]: Start accepts. Automaton has 9190 states and 25578 transitions. Word has length 101 [2022-03-15 13:49:14,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:14,331 INFO L470 AbstractCegarLoop]: Abstraction has 9190 states and 25578 transitions. [2022-03-15 13:49:14,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:14,331 INFO L276 IsEmpty]: Start isEmpty. Operand 9190 states and 25578 transitions. [2022-03-15 13:49:14,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:14,344 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:14,344 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:14,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-15 13:49:14,344 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:14,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:14,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1352894776, now seen corresponding path program 8 times [2022-03-15 13:49:14,345 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:14,345 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500811077] [2022-03-15 13:49:14,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:14,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:14,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:14,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:14,423 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:14,423 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500811077] [2022-03-15 13:49:14,423 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500811077] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:14,423 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:14,423 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:14,423 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719951945] [2022-03-15 13:49:14,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:14,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:14,423 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:14,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:14,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:14,424 INFO L87 Difference]: Start difference. First operand 9190 states and 25578 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:14,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:14,649 INFO L93 Difference]: Finished difference Result 10077 states and 27850 transitions. [2022-03-15 13:49:14,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 13:49:14,649 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:14,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:14,663 INFO L225 Difference]: With dead ends: 10077 [2022-03-15 13:49:14,663 INFO L226 Difference]: Without dead ends: 9555 [2022-03-15 13:49:14,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-03-15 13:49:14,664 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 130 mSDsluCounter, 1831 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 2039 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:14,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 2039 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:14,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9555 states. [2022-03-15 13:49:14,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9555 to 9194. [2022-03-15 13:49:14,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9194 states, 9193 states have (on average 2.7830958337865765) internal successors, (25585), 9193 states have internal predecessors, (25585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:14,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9194 states to 9194 states and 25585 transitions. [2022-03-15 13:49:14,780 INFO L78 Accepts]: Start accepts. Automaton has 9194 states and 25585 transitions. Word has length 101 [2022-03-15 13:49:14,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:14,780 INFO L470 AbstractCegarLoop]: Abstraction has 9194 states and 25585 transitions. [2022-03-15 13:49:14,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:14,780 INFO L276 IsEmpty]: Start isEmpty. Operand 9194 states and 25585 transitions. [2022-03-15 13:49:14,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:14,791 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:14,792 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:14,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-15 13:49:14,792 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:14,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:14,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1047023266, now seen corresponding path program 9 times [2022-03-15 13:49:14,792 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:14,792 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415599307] [2022-03-15 13:49:14,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:14,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:14,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:14,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:14,872 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:14,872 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415599307] [2022-03-15 13:49:14,872 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415599307] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:14,872 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:14,872 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:14,872 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575901704] [2022-03-15 13:49:14,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:14,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:14,873 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:14,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:14,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:14,873 INFO L87 Difference]: Start difference. First operand 9194 states and 25585 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:15,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:15,136 INFO L93 Difference]: Finished difference Result 9960 states and 27543 transitions. [2022-03-15 13:49:15,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:49:15,136 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:15,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:15,148 INFO L225 Difference]: With dead ends: 9960 [2022-03-15 13:49:15,149 INFO L226 Difference]: Without dead ends: 9481 [2022-03-15 13:49:15,149 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:49:15,149 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 99 mSDsluCounter, 1793 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 1995 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:15,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 1995 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:15,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9481 states. [2022-03-15 13:49:15,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9481 to 9198. [2022-03-15 13:49:15,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9198 states, 9197 states have (on average 2.7826465151679898) internal successors, (25592), 9197 states have internal predecessors, (25592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:15,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9198 states to 9198 states and 25592 transitions. [2022-03-15 13:49:15,277 INFO L78 Accepts]: Start accepts. Automaton has 9198 states and 25592 transitions. Word has length 101 [2022-03-15 13:49:15,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:15,277 INFO L470 AbstractCegarLoop]: Abstraction has 9198 states and 25592 transitions. [2022-03-15 13:49:15,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:15,277 INFO L276 IsEmpty]: Start isEmpty. Operand 9198 states and 25592 transitions. [2022-03-15 13:49:15,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:15,289 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:15,289 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:15,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-15 13:49:15,289 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:15,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:15,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1620420912, now seen corresponding path program 10 times [2022-03-15 13:49:15,290 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:15,290 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286334326] [2022-03-15 13:49:15,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:15,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:15,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:15,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:15,388 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:15,388 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286334326] [2022-03-15 13:49:15,388 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286334326] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:15,388 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:15,388 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:15,388 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747828706] [2022-03-15 13:49:15,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:15,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:15,389 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:15,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:15,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:15,389 INFO L87 Difference]: Start difference. First operand 9198 states and 25592 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:15,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:15,569 INFO L93 Difference]: Finished difference Result 9894 states and 27366 transitions. [2022-03-15 13:49:15,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:49:15,570 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:15,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:15,585 INFO L225 Difference]: With dead ends: 9894 [2022-03-15 13:49:15,585 INFO L226 Difference]: Without dead ends: 9388 [2022-03-15 13:49:15,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:49:15,586 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 85 mSDsluCounter, 1580 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 1787 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:15,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 1787 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:15,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9388 states. [2022-03-15 13:49:15,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9388 to 9168. [2022-03-15 13:49:15,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9168 states, 9167 states have (on average 2.7845532889713103) internal successors, (25526), 9167 states have internal predecessors, (25526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:15,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9168 states to 9168 states and 25526 transitions. [2022-03-15 13:49:15,726 INFO L78 Accepts]: Start accepts. Automaton has 9168 states and 25526 transitions. Word has length 101 [2022-03-15 13:49:15,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:15,726 INFO L470 AbstractCegarLoop]: Abstraction has 9168 states and 25526 transitions. [2022-03-15 13:49:15,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:15,726 INFO L276 IsEmpty]: Start isEmpty. Operand 9168 states and 25526 transitions. [2022-03-15 13:49:15,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:15,738 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:15,738 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:15,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-15 13:49:15,739 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:15,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:15,739 INFO L85 PathProgramCache]: Analyzing trace with hash -2141146676, now seen corresponding path program 11 times [2022-03-15 13:49:15,739 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:15,739 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410116248] [2022-03-15 13:49:15,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:15,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:15,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:15,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:15,814 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:15,814 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410116248] [2022-03-15 13:49:15,814 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410116248] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:15,814 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:15,814 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:15,814 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839539711] [2022-03-15 13:49:15,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:15,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:15,814 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:15,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:15,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:15,815 INFO L87 Difference]: Start difference. First operand 9168 states and 25526 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:15,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:15,991 INFO L93 Difference]: Finished difference Result 9859 states and 27279 transitions. [2022-03-15 13:49:15,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 13:49:15,991 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:15,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:16,006 INFO L225 Difference]: With dead ends: 9859 [2022-03-15 13:49:16,007 INFO L226 Difference]: Without dead ends: 9380 [2022-03-15 13:49:16,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:49:16,007 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 110 mSDsluCounter, 1351 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 1553 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:16,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 1553 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:16,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9380 states. [2022-03-15 13:49:16,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9380 to 9176. [2022-03-15 13:49:16,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9176 states, 9175 states have (on average 2.7840871934604903) internal successors, (25544), 9175 states have internal predecessors, (25544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:16,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9176 states to 9176 states and 25544 transitions. [2022-03-15 13:49:16,143 INFO L78 Accepts]: Start accepts. Automaton has 9176 states and 25544 transitions. Word has length 101 [2022-03-15 13:49:16,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:16,144 INFO L470 AbstractCegarLoop]: Abstraction has 9176 states and 25544 transitions. [2022-03-15 13:49:16,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:16,144 INFO L276 IsEmpty]: Start isEmpty. Operand 9176 states and 25544 transitions. [2022-03-15 13:49:16,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:16,156 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:16,156 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:16,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-15 13:49:16,157 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:16,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:16,157 INFO L85 PathProgramCache]: Analyzing trace with hash -513623558, now seen corresponding path program 12 times [2022-03-15 13:49:16,157 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:16,157 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695843740] [2022-03-15 13:49:16,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:16,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:16,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:16,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:16,232 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:16,232 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695843740] [2022-03-15 13:49:16,232 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695843740] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:16,232 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:16,232 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:16,232 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240688827] [2022-03-15 13:49:16,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:16,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:16,232 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:16,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:16,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:16,233 INFO L87 Difference]: Start difference. First operand 9176 states and 25544 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:16,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:16,441 INFO L93 Difference]: Finished difference Result 9825 states and 27190 transitions. [2022-03-15 13:49:16,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:49:16,442 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:16,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:16,459 INFO L225 Difference]: With dead ends: 9825 [2022-03-15 13:49:16,460 INFO L226 Difference]: Without dead ends: 9345 [2022-03-15 13:49:16,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:49:16,460 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 104 mSDsluCounter, 1803 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 2008 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:16,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 2008 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:16,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9345 states. [2022-03-15 13:49:16,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9345 to 9172. [2022-03-15 13:49:16,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9172 states, 9171 states have (on average 2.784102060843965) internal successors, (25533), 9171 states have internal predecessors, (25533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:16,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9172 states to 9172 states and 25533 transitions. [2022-03-15 13:49:16,606 INFO L78 Accepts]: Start accepts. Automaton has 9172 states and 25533 transitions. Word has length 101 [2022-03-15 13:49:16,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:16,606 INFO L470 AbstractCegarLoop]: Abstraction has 9172 states and 25533 transitions. [2022-03-15 13:49:16,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:16,606 INFO L276 IsEmpty]: Start isEmpty. Operand 9172 states and 25533 transitions. [2022-03-15 13:49:16,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:16,618 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:16,619 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:16,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-15 13:49:16,619 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:16,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:16,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1634680898, now seen corresponding path program 13 times [2022-03-15 13:49:16,619 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:16,619 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113622971] [2022-03-15 13:49:16,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:16,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:16,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:16,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:16,699 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:16,699 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113622971] [2022-03-15 13:49:16,699 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113622971] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:16,699 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:16,699 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:16,699 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323924885] [2022-03-15 13:49:16,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:16,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:16,700 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:16,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:16,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:16,700 INFO L87 Difference]: Start difference. First operand 9172 states and 25533 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:16,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:16,944 INFO L93 Difference]: Finished difference Result 9861 states and 27285 transitions. [2022-03-15 13:49:16,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-15 13:49:16,945 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:16,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:16,960 INFO L225 Difference]: With dead ends: 9861 [2022-03-15 13:49:16,960 INFO L226 Difference]: Without dead ends: 9341 [2022-03-15 13:49:16,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2022-03-15 13:49:16,960 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 146 mSDsluCounter, 1424 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:16,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 1643 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:16,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9341 states. [2022-03-15 13:49:17,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9341 to 9168. [2022-03-15 13:49:17,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9168 states, 9167 states have (on average 2.784116941202138) internal successors, (25522), 9167 states have internal predecessors, (25522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:17,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9168 states to 9168 states and 25522 transitions. [2022-03-15 13:49:17,092 INFO L78 Accepts]: Start accepts. Automaton has 9168 states and 25522 transitions. Word has length 101 [2022-03-15 13:49:17,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:17,092 INFO L470 AbstractCegarLoop]: Abstraction has 9168 states and 25522 transitions. [2022-03-15 13:49:17,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:17,093 INFO L276 IsEmpty]: Start isEmpty. Operand 9168 states and 25522 transitions. [2022-03-15 13:49:17,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:17,104 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:17,105 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:17,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-15 13:49:17,105 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:17,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:17,105 INFO L85 PathProgramCache]: Analyzing trace with hash -760242484, now seen corresponding path program 14 times [2022-03-15 13:49:17,105 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:17,105 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807866610] [2022-03-15 13:49:17,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:17,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:17,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:17,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:17,174 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:17,174 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807866610] [2022-03-15 13:49:17,174 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807866610] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:17,175 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:17,175 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:17,175 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143136223] [2022-03-15 13:49:17,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:17,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:17,175 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:17,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:17,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:17,175 INFO L87 Difference]: Start difference. First operand 9168 states and 25522 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:17,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:17,440 INFO L93 Difference]: Finished difference Result 10266 states and 28261 transitions. [2022-03-15 13:49:17,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-15 13:49:17,440 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:17,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:17,459 INFO L225 Difference]: With dead ends: 10266 [2022-03-15 13:49:17,459 INFO L226 Difference]: Without dead ends: 9618 [2022-03-15 13:49:17,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2022-03-15 13:49:17,460 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 260 mSDsluCounter, 1404 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 1623 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:17,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 1623 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:49:17,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9618 states. [2022-03-15 13:49:17,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9618 to 9036. [2022-03-15 13:49:17,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9036 states, 9035 states have (on average 2.785058107360266) internal successors, (25163), 9035 states have internal predecessors, (25163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:17,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9036 states to 9036 states and 25163 transitions. [2022-03-15 13:49:17,601 INFO L78 Accepts]: Start accepts. Automaton has 9036 states and 25163 transitions. Word has length 101 [2022-03-15 13:49:17,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:17,602 INFO L470 AbstractCegarLoop]: Abstraction has 9036 states and 25163 transitions. [2022-03-15 13:49:17,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:17,602 INFO L276 IsEmpty]: Start isEmpty. Operand 9036 states and 25163 transitions. [2022-03-15 13:49:17,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:17,614 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:17,614 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:17,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-15 13:49:17,615 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:17,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:17,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1002250734, now seen corresponding path program 15 times [2022-03-15 13:49:17,615 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:17,615 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568872220] [2022-03-15 13:49:17,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:17,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:17,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:17,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:17,714 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:17,714 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568872220] [2022-03-15 13:49:17,714 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568872220] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:17,714 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:17,714 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:17,715 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136353953] [2022-03-15 13:49:17,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:17,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:17,715 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:17,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:17,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:17,715 INFO L87 Difference]: Start difference. First operand 9036 states and 25163 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:17,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:17,923 INFO L93 Difference]: Finished difference Result 9719 states and 26894 transitions. [2022-03-15 13:49:17,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:49:17,923 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:17,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:17,939 INFO L225 Difference]: With dead ends: 9719 [2022-03-15 13:49:17,939 INFO L226 Difference]: Without dead ends: 9240 [2022-03-15 13:49:17,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:49:17,940 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 91 mSDsluCounter, 1706 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 1898 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:17,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 1898 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:17,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9240 states. [2022-03-15 13:49:18,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9240 to 9044. [2022-03-15 13:49:18,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9044 states, 9043 states have (on average 2.784584761694128) internal successors, (25181), 9043 states have internal predecessors, (25181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:18,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9044 states to 9044 states and 25181 transitions. [2022-03-15 13:49:18,077 INFO L78 Accepts]: Start accepts. Automaton has 9044 states and 25181 transitions. Word has length 101 [2022-03-15 13:49:18,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:18,077 INFO L470 AbstractCegarLoop]: Abstraction has 9044 states and 25181 transitions. [2022-03-15 13:49:18,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:18,078 INFO L276 IsEmpty]: Start isEmpty. Operand 9044 states and 25181 transitions. [2022-03-15 13:49:18,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:18,090 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:18,090 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:18,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-15 13:49:18,090 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:18,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:18,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1665193444, now seen corresponding path program 16 times [2022-03-15 13:49:18,090 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:18,090 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575407604] [2022-03-15 13:49:18,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:18,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:18,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:18,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:18,166 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:18,166 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575407604] [2022-03-15 13:49:18,166 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575407604] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:18,166 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:18,166 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:18,167 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955171734] [2022-03-15 13:49:18,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:18,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:18,167 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:18,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:18,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:18,167 INFO L87 Difference]: Start difference. First operand 9044 states and 25181 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:18,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:18,354 INFO L93 Difference]: Finished difference Result 9677 states and 26783 transitions. [2022-03-15 13:49:18,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:49:18,354 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:18,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:18,370 INFO L225 Difference]: With dead ends: 9677 [2022-03-15 13:49:18,370 INFO L226 Difference]: Without dead ends: 9197 [2022-03-15 13:49:18,370 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:49:18,371 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 87 mSDsluCounter, 1317 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1522 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:18,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 1522 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:18,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9197 states. [2022-03-15 13:49:18,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9197 to 9040. [2022-03-15 13:49:18,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9040 states, 9039 states have (on average 2.7846000663790242) internal successors, (25170), 9039 states have internal predecessors, (25170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:18,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9040 states to 9040 states and 25170 transitions. [2022-03-15 13:49:18,503 INFO L78 Accepts]: Start accepts. Automaton has 9040 states and 25170 transitions. Word has length 101 [2022-03-15 13:49:18,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:18,503 INFO L470 AbstractCegarLoop]: Abstraction has 9040 states and 25170 transitions. [2022-03-15 13:49:18,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:18,503 INFO L276 IsEmpty]: Start isEmpty. Operand 9040 states and 25170 transitions. [2022-03-15 13:49:18,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:18,515 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:18,515 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:18,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-15 13:49:18,515 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:18,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:18,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1508716512, now seen corresponding path program 17 times [2022-03-15 13:49:18,515 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:18,516 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319089828] [2022-03-15 13:49:18,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:18,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:18,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:18,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:18,593 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:18,593 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319089828] [2022-03-15 13:49:18,593 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319089828] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:18,593 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:18,593 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:18,593 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874475902] [2022-03-15 13:49:18,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:18,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:18,594 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:18,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:18,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:18,594 INFO L87 Difference]: Start difference. First operand 9040 states and 25170 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:18,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:18,794 INFO L93 Difference]: Finished difference Result 9825 states and 27170 transitions. [2022-03-15 13:49:18,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 13:49:18,794 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:18,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:18,809 INFO L225 Difference]: With dead ends: 9825 [2022-03-15 13:49:18,809 INFO L226 Difference]: Without dead ends: 9305 [2022-03-15 13:49:18,809 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-03-15 13:49:18,810 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 141 mSDsluCounter, 1127 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:18,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 1332 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:49:18,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9305 states. [2022-03-15 13:49:18,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9305 to 9036. [2022-03-15 13:49:18,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9036 states, 9035 states have (on average 2.7846153846153845) internal successors, (25159), 9035 states have internal predecessors, (25159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:18,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9036 states to 9036 states and 25159 transitions. [2022-03-15 13:49:18,998 INFO L78 Accepts]: Start accepts. Automaton has 9036 states and 25159 transitions. Word has length 101 [2022-03-15 13:49:18,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:18,998 INFO L470 AbstractCegarLoop]: Abstraction has 9036 states and 25159 transitions. [2022-03-15 13:49:18,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:18,998 INFO L276 IsEmpty]: Start isEmpty. Operand 9036 states and 25159 transitions. [2022-03-15 13:49:19,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:19,010 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:19,010 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:19,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-15 13:49:19,010 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:19,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:19,011 INFO L85 PathProgramCache]: Analyzing trace with hash 846695578, now seen corresponding path program 18 times [2022-03-15 13:49:19,011 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:19,011 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50360343] [2022-03-15 13:49:19,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:19,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:19,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:19,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:19,086 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:19,086 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50360343] [2022-03-15 13:49:19,086 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50360343] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:19,086 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:19,086 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:19,086 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849356556] [2022-03-15 13:49:19,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:19,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:19,087 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:19,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:19,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:19,087 INFO L87 Difference]: Start difference. First operand 9036 states and 25159 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:19,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:19,281 INFO L93 Difference]: Finished difference Result 9656 states and 26723 transitions. [2022-03-15 13:49:19,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-15 13:49:19,282 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:19,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:19,297 INFO L225 Difference]: With dead ends: 9656 [2022-03-15 13:49:19,297 INFO L226 Difference]: Without dead ends: 9134 [2022-03-15 13:49:19,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-03-15 13:49:19,298 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 126 mSDsluCounter, 1502 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 1697 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:19,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 1697 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:19,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9134 states. [2022-03-15 13:49:19,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9134 to 8993. [2022-03-15 13:49:19,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8993 states, 8992 states have (on average 2.7850311387900355) internal successors, (25043), 8992 states have internal predecessors, (25043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:19,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8993 states to 8993 states and 25043 transitions. [2022-03-15 13:49:19,437 INFO L78 Accepts]: Start accepts. Automaton has 8993 states and 25043 transitions. Word has length 101 [2022-03-15 13:49:19,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:19,438 INFO L470 AbstractCegarLoop]: Abstraction has 8993 states and 25043 transitions. [2022-03-15 13:49:19,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:19,438 INFO L276 IsEmpty]: Start isEmpty. Operand 8993 states and 25043 transitions. [2022-03-15 13:49:19,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:19,449 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:19,449 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:19,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-15 13:49:19,449 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:19,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:19,450 INFO L85 PathProgramCache]: Analyzing trace with hash 540824068, now seen corresponding path program 19 times [2022-03-15 13:49:19,450 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:19,450 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690196472] [2022-03-15 13:49:19,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:19,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:19,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:19,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:19,520 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:19,520 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690196472] [2022-03-15 13:49:19,520 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690196472] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:19,520 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:19,520 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:19,520 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538400841] [2022-03-15 13:49:19,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:19,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:19,520 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:19,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:19,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:19,521 INFO L87 Difference]: Start difference. First operand 8993 states and 25043 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:19,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:19,698 INFO L93 Difference]: Finished difference Result 9570 states and 26495 transitions. [2022-03-15 13:49:19,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:49:19,698 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:19,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:19,715 INFO L225 Difference]: With dead ends: 9570 [2022-03-15 13:49:19,715 INFO L226 Difference]: Without dead ends: 9091 [2022-03-15 13:49:19,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:49:19,716 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 117 mSDsluCounter, 1259 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:19,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 1450 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:49:19,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9091 states. [2022-03-15 13:49:19,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9091 to 8997. [2022-03-15 13:49:19,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8997 states, 8996 states have (on average 2.7845709204090707) internal successors, (25050), 8996 states have internal predecessors, (25050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:19,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8997 states to 8997 states and 25050 transitions. [2022-03-15 13:49:19,858 INFO L78 Accepts]: Start accepts. Automaton has 8997 states and 25050 transitions. Word has length 101 [2022-03-15 13:49:19,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:19,858 INFO L470 AbstractCegarLoop]: Abstraction has 8997 states and 25050 transitions. [2022-03-15 13:49:19,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:19,858 INFO L276 IsEmpty]: Start isEmpty. Operand 8997 states and 25050 transitions. [2022-03-15 13:49:19,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 13:49:19,870 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:19,870 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:19,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-15 13:49:19,870 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:19,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:19,871 INFO L85 PathProgramCache]: Analyzing trace with hash -2126620110, now seen corresponding path program 20 times [2022-03-15 13:49:19,871 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:19,871 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625453797] [2022-03-15 13:49:19,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:19,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:19,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:19,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:19,947 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:19,948 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625453797] [2022-03-15 13:49:19,948 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625453797] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:19,948 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:19,948 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:49:19,948 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401577627] [2022-03-15 13:49:19,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:19,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:49:19,948 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:19,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:49:19,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:49:19,949 INFO L87 Difference]: Start difference. First operand 8997 states and 25050 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:20,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:20,111 INFO L93 Difference]: Finished difference Result 9473 states and 26239 transitions. [2022-03-15 13:49:20,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:49:20,112 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-15 13:49:20,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:20,124 INFO L225 Difference]: With dead ends: 9473 [2022-03-15 13:49:20,124 INFO L226 Difference]: Without dead ends: 8939 [2022-03-15 13:49:20,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:49:20,125 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 83 mSDsluCounter, 1580 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1756 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:20,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 1756 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:20,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8939 states. [2022-03-15 13:49:20,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8939 to 8939. [2022-03-15 13:49:20,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8939 states, 8938 states have (on average 2.7879838890132023) internal successors, (24919), 8938 states have internal predecessors, (24919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:20,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8939 states to 8939 states and 24919 transitions. [2022-03-15 13:49:20,236 INFO L78 Accepts]: Start accepts. Automaton has 8939 states and 24919 transitions. Word has length 101 [2022-03-15 13:49:20,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:20,236 INFO L470 AbstractCegarLoop]: Abstraction has 8939 states and 24919 transitions. [2022-03-15 13:49:20,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:20,236 INFO L276 IsEmpty]: Start isEmpty. Operand 8939 states and 24919 transitions. [2022-03-15 13:49:20,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:20,246 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:20,246 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:20,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-15 13:49:20,247 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:20,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:20,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1425192312, now seen corresponding path program 1 times [2022-03-15 13:49:20,247 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:20,247 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125967574] [2022-03-15 13:49:20,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:20,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:20,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:20,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:20,338 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:20,338 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125967574] [2022-03-15 13:49:20,338 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125967574] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:20,338 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:20,338 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:20,338 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291638648] [2022-03-15 13:49:20,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:20,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:20,338 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:20,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:20,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:20,339 INFO L87 Difference]: Start difference. First operand 8939 states and 24919 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:20,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:20,922 INFO L93 Difference]: Finished difference Result 14618 states and 40107 transitions. [2022-03-15 13:49:20,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-15 13:49:20,923 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:20,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:20,944 INFO L225 Difference]: With dead ends: 14618 [2022-03-15 13:49:20,944 INFO L226 Difference]: Without dead ends: 13655 [2022-03-15 13:49:20,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=492, Invalid=1400, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 13:49:20,945 INFO L933 BasicCegarLoop]: 605 mSDtfsCounter, 793 mSDsluCounter, 5107 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 5629 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:20,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [793 Valid, 5629 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:49:20,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13655 states. [2022-03-15 13:49:21,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13655 to 9479. [2022-03-15 13:49:21,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9479 states, 9478 states have (on average 2.785503270732222) internal successors, (26401), 9478 states have internal predecessors, (26401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:21,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9479 states to 9479 states and 26401 transitions. [2022-03-15 13:49:21,102 INFO L78 Accepts]: Start accepts. Automaton has 9479 states and 26401 transitions. Word has length 109 [2022-03-15 13:49:21,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:21,102 INFO L470 AbstractCegarLoop]: Abstraction has 9479 states and 26401 transitions. [2022-03-15 13:49:21,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:21,103 INFO L276 IsEmpty]: Start isEmpty. Operand 9479 states and 26401 transitions. [2022-03-15 13:49:21,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:21,114 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:21,114 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:21,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-15 13:49:21,115 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:21,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:21,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1923529448, now seen corresponding path program 1 times [2022-03-15 13:49:21,115 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:21,115 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105419600] [2022-03-15 13:49:21,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:21,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:21,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:21,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:21,131 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:21,131 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105419600] [2022-03-15 13:49:21,132 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105419600] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:21,132 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:21,132 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 13:49:21,132 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808756] [2022-03-15 13:49:21,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:21,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 13:49:21,132 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:21,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 13:49:21,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 13:49:21,132 INFO L87 Difference]: Start difference. First operand 9479 states and 26401 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:21,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:21,197 INFO L93 Difference]: Finished difference Result 13726 states and 37493 transitions. [2022-03-15 13:49:21,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 13:49:21,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:21,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:21,220 INFO L225 Difference]: With dead ends: 13726 [2022-03-15 13:49:21,221 INFO L226 Difference]: Without dead ends: 13663 [2022-03-15 13:49:21,221 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 13:49:21,221 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 104 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:21,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 380 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:49:21,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13663 states. [2022-03-15 13:49:21,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13663 to 9937. [2022-03-15 13:49:21,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9937 states, 9936 states have (on average 2.763184380032206) internal successors, (27455), 9936 states have internal predecessors, (27455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:21,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9937 states to 9937 states and 27455 transitions. [2022-03-15 13:49:21,376 INFO L78 Accepts]: Start accepts. Automaton has 9937 states and 27455 transitions. Word has length 109 [2022-03-15 13:49:21,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:21,376 INFO L470 AbstractCegarLoop]: Abstraction has 9937 states and 27455 transitions. [2022-03-15 13:49:21,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:21,376 INFO L276 IsEmpty]: Start isEmpty. Operand 9937 states and 27455 transitions. [2022-03-15 13:49:21,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:21,388 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:21,388 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:21,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-15 13:49:21,389 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:21,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:21,389 INFO L85 PathProgramCache]: Analyzing trace with hash 356410200, now seen corresponding path program 1 times [2022-03-15 13:49:21,389 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:21,389 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338153703] [2022-03-15 13:49:21,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:21,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:21,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:21,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:21,404 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:21,404 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338153703] [2022-03-15 13:49:21,405 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338153703] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:21,405 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:21,405 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 13:49:21,405 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996065377] [2022-03-15 13:49:21,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:21,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 13:49:21,405 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:21,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 13:49:21,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 13:49:21,405 INFO L87 Difference]: Start difference. First operand 9937 states and 27455 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:21,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:21,462 INFO L93 Difference]: Finished difference Result 14235 states and 38677 transitions. [2022-03-15 13:49:21,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 13:49:21,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:21,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:21,488 INFO L225 Difference]: With dead ends: 14235 [2022-03-15 13:49:21,488 INFO L226 Difference]: Without dead ends: 13712 [2022-03-15 13:49:21,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 13:49:21,488 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 108 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:21,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 380 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:49:21,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13712 states. [2022-03-15 13:49:21,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13712 to 9931. [2022-03-15 13:49:21,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9931 states, 9930 states have (on average 2.7618328298086605) internal successors, (27425), 9930 states have internal predecessors, (27425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:21,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9931 states to 9931 states and 27425 transitions. [2022-03-15 13:49:21,681 INFO L78 Accepts]: Start accepts. Automaton has 9931 states and 27425 transitions. Word has length 109 [2022-03-15 13:49:21,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:21,681 INFO L470 AbstractCegarLoop]: Abstraction has 9931 states and 27425 transitions. [2022-03-15 13:49:21,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:21,681 INFO L276 IsEmpty]: Start isEmpty. Operand 9931 states and 27425 transitions. [2022-03-15 13:49:21,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:21,695 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:21,695 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:21,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-15 13:49:21,696 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:21,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:21,696 INFO L85 PathProgramCache]: Analyzing trace with hash -958186088, now seen corresponding path program 1 times [2022-03-15 13:49:21,696 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:21,696 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913283756] [2022-03-15 13:49:21,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:21,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:21,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:21,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:21,711 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:21,711 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913283756] [2022-03-15 13:49:21,711 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913283756] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:21,711 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:21,711 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 13:49:21,711 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076224923] [2022-03-15 13:49:21,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:21,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 13:49:21,711 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:21,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 13:49:21,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 13:49:21,712 INFO L87 Difference]: Start difference. First operand 9931 states and 27425 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:21,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:21,752 INFO L93 Difference]: Finished difference Result 10120 states and 27148 transitions. [2022-03-15 13:49:21,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 13:49:21,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:21,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:21,768 INFO L225 Difference]: With dead ends: 10120 [2022-03-15 13:49:21,768 INFO L226 Difference]: Without dead ends: 10120 [2022-03-15 13:49:21,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 13:49:21,769 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 119 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:21,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 280 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:49:21,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10120 states. [2022-03-15 13:49:21,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10120 to 9280. [2022-03-15 13:49:21,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9280 states, 9279 states have (on average 2.6963034809785538) internal successors, (25019), 9279 states have internal predecessors, (25019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:21,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9280 states to 9280 states and 25019 transitions. [2022-03-15 13:49:21,916 INFO L78 Accepts]: Start accepts. Automaton has 9280 states and 25019 transitions. Word has length 109 [2022-03-15 13:49:21,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:21,917 INFO L470 AbstractCegarLoop]: Abstraction has 9280 states and 25019 transitions. [2022-03-15 13:49:21,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:21,917 INFO L276 IsEmpty]: Start isEmpty. Operand 9280 states and 25019 transitions. [2022-03-15 13:49:21,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:21,929 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:21,929 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:21,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-15 13:49:21,929 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:21,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:21,929 INFO L85 PathProgramCache]: Analyzing trace with hash -2026968200, now seen corresponding path program 1 times [2022-03-15 13:49:21,930 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:21,930 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687626718] [2022-03-15 13:49:21,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:21,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:21,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:22,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:22,053 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:22,053 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687626718] [2022-03-15 13:49:22,053 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687626718] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:22,053 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:22,053 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:22,053 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412388123] [2022-03-15 13:49:22,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:22,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:22,053 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:22,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:22,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:22,054 INFO L87 Difference]: Start difference. First operand 9280 states and 25019 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:22,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:22,977 INFO L93 Difference]: Finished difference Result 12057 states and 32171 transitions. [2022-03-15 13:49:22,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-03-15 13:49:22,977 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:22,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:22,996 INFO L225 Difference]: With dead ends: 12057 [2022-03-15 13:49:22,996 INFO L226 Difference]: Without dead ends: 11168 [2022-03-15 13:49:22,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1334 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1028, Invalid=3394, Unknown=0, NotChecked=0, Total=4422 [2022-03-15 13:49:22,998 INFO L933 BasicCegarLoop]: 468 mSDtfsCounter, 783 mSDsluCounter, 2686 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 3069 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:22,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [783 Valid, 3069 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:23,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11168 states. [2022-03-15 13:49:23,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11168 to 9060. [2022-03-15 13:49:23,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9060 states, 9059 states have (on average 2.7005188210619275) internal successors, (24464), 9059 states have internal predecessors, (24464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:23,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9060 states to 9060 states and 24464 transitions. [2022-03-15 13:49:23,208 INFO L78 Accepts]: Start accepts. Automaton has 9060 states and 24464 transitions. Word has length 109 [2022-03-15 13:49:23,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:23,208 INFO L470 AbstractCegarLoop]: Abstraction has 9060 states and 24464 transitions. [2022-03-15 13:49:23,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:23,208 INFO L276 IsEmpty]: Start isEmpty. Operand 9060 states and 24464 transitions. [2022-03-15 13:49:23,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:23,220 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:23,220 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:23,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-15 13:49:23,220 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:23,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:23,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1022754920, now seen corresponding path program 2 times [2022-03-15 13:49:23,221 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:23,221 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288720701] [2022-03-15 13:49:23,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:23,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:23,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:23,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:23,326 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:23,326 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288720701] [2022-03-15 13:49:23,327 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288720701] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:23,327 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:23,327 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:23,327 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408302611] [2022-03-15 13:49:23,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:23,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:23,327 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:23,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:23,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:23,327 INFO L87 Difference]: Start difference. First operand 9060 states and 24464 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:24,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:24,096 INFO L93 Difference]: Finished difference Result 11337 states and 30482 transitions. [2022-03-15 13:49:24,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-15 13:49:24,097 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:24,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:24,114 INFO L225 Difference]: With dead ends: 11337 [2022-03-15 13:49:24,114 INFO L226 Difference]: Without dead ends: 10723 [2022-03-15 13:49:24,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1144 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=850, Invalid=3056, Unknown=0, NotChecked=0, Total=3906 [2022-03-15 13:49:24,115 INFO L933 BasicCegarLoop]: 441 mSDtfsCounter, 509 mSDsluCounter, 4513 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 4849 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:24,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [509 Valid, 4849 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:49:24,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10723 states. [2022-03-15 13:49:24,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10723 to 9064. [2022-03-15 13:49:24,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9064 states, 9063 states have (on average 2.7000993048659385) internal successors, (24471), 9063 states have internal predecessors, (24471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:24,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9064 states to 9064 states and 24471 transitions. [2022-03-15 13:49:24,262 INFO L78 Accepts]: Start accepts. Automaton has 9064 states and 24471 transitions. Word has length 109 [2022-03-15 13:49:24,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:24,262 INFO L470 AbstractCegarLoop]: Abstraction has 9064 states and 24471 transitions. [2022-03-15 13:49:24,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:24,262 INFO L276 IsEmpty]: Start isEmpty. Operand 9064 states and 24471 transitions. [2022-03-15 13:49:24,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:24,275 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:24,275 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:24,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-15 13:49:24,275 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:24,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:24,276 INFO L85 PathProgramCache]: Analyzing trace with hash -2080051074, now seen corresponding path program 3 times [2022-03-15 13:49:24,276 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:24,276 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210780698] [2022-03-15 13:49:24,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:24,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:24,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:24,391 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:24,391 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210780698] [2022-03-15 13:49:24,391 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210780698] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:24,391 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:24,391 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:24,391 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546556500] [2022-03-15 13:49:24,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:24,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:24,391 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:24,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:24,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:24,392 INFO L87 Difference]: Start difference. First operand 9064 states and 24471 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:25,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:25,045 INFO L93 Difference]: Finished difference Result 11173 states and 30052 transitions. [2022-03-15 13:49:25,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-15 13:49:25,045 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:25,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:25,063 INFO L225 Difference]: With dead ends: 11173 [2022-03-15 13:49:25,063 INFO L226 Difference]: Without dead ends: 10602 [2022-03-15 13:49:25,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 824 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=623, Invalid=2347, Unknown=0, NotChecked=0, Total=2970 [2022-03-15 13:49:25,064 INFO L933 BasicCegarLoop]: 429 mSDtfsCounter, 430 mSDsluCounter, 4066 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 4405 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:25,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [430 Valid, 4405 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:49:25,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10602 states. [2022-03-15 13:49:25,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10602 to 9068. [2022-03-15 13:49:25,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9068 states, 9067 states have (on average 2.6996801588176904) internal successors, (24478), 9067 states have internal predecessors, (24478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:25,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9068 states to 9068 states and 24478 transitions. [2022-03-15 13:49:25,212 INFO L78 Accepts]: Start accepts. Automaton has 9068 states and 24478 transitions. Word has length 109 [2022-03-15 13:49:25,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:25,213 INFO L470 AbstractCegarLoop]: Abstraction has 9068 states and 24478 transitions. [2022-03-15 13:49:25,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:25,213 INFO L276 IsEmpty]: Start isEmpty. Operand 9068 states and 24478 transitions. [2022-03-15 13:49:25,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:25,224 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:25,224 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:25,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-15 13:49:25,225 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:25,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:25,225 INFO L85 PathProgramCache]: Analyzing trace with hash -290488620, now seen corresponding path program 4 times [2022-03-15 13:49:25,225 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:25,225 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396527480] [2022-03-15 13:49:25,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:25,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:25,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:25,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:25,337 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:25,337 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396527480] [2022-03-15 13:49:25,337 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396527480] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:25,337 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:25,337 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:25,338 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520948606] [2022-03-15 13:49:25,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:25,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:25,338 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:25,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:25,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:25,338 INFO L87 Difference]: Start difference. First operand 9068 states and 24478 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:25,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:25,887 INFO L93 Difference]: Finished difference Result 11048 states and 29723 transitions. [2022-03-15 13:49:25,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:49:25,887 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:25,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:25,905 INFO L225 Difference]: With dead ends: 11048 [2022-03-15 13:49:25,906 INFO L226 Difference]: Without dead ends: 10520 [2022-03-15 13:49:25,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=446, Invalid=1716, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 13:49:25,907 INFO L933 BasicCegarLoop]: 417 mSDtfsCounter, 367 mSDsluCounter, 3970 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 4306 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:25,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [367 Valid, 4306 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:25,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10520 states. [2022-03-15 13:49:26,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10520 to 9072. [2022-03-15 13:49:26,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9072 states, 9071 states have (on average 2.6992613824275162) internal successors, (24485), 9071 states have internal predecessors, (24485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:26,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9072 states to 9072 states and 24485 transitions. [2022-03-15 13:49:26,055 INFO L78 Accepts]: Start accepts. Automaton has 9072 states and 24485 transitions. Word has length 109 [2022-03-15 13:49:26,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:26,055 INFO L470 AbstractCegarLoop]: Abstraction has 9072 states and 24485 transitions. [2022-03-15 13:49:26,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:26,055 INFO L276 IsEmpty]: Start isEmpty. Operand 9072 states and 24485 transitions. [2022-03-15 13:49:26,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:26,067 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:26,067 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:26,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-15 13:49:26,068 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:26,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:26,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1496446334, now seen corresponding path program 5 times [2022-03-15 13:49:26,068 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:26,068 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949847913] [2022-03-15 13:49:26,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:26,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:26,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:26,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:26,185 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:26,185 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949847913] [2022-03-15 13:49:26,185 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949847913] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:26,185 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:26,185 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:26,185 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533737343] [2022-03-15 13:49:26,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:26,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:26,185 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:26,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:26,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:26,186 INFO L87 Difference]: Start difference. First operand 9072 states and 24485 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:26,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:26,585 INFO L93 Difference]: Finished difference Result 10884 states and 29293 transitions. [2022-03-15 13:49:26,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:49:26,585 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:26,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:26,601 INFO L225 Difference]: With dead ends: 10884 [2022-03-15 13:49:26,601 INFO L226 Difference]: Without dead ends: 10399 [2022-03-15 13:49:26,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=316, Invalid=1090, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:49:26,602 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 312 mSDsluCounter, 2879 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 3225 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:26,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 3225 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:26,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10399 states. [2022-03-15 13:49:26,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10399 to 9076. [2022-03-15 13:49:26,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9076 states, 9075 states have (on average 2.6988429752066114) internal successors, (24492), 9075 states have internal predecessors, (24492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:26,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9076 states to 9076 states and 24492 transitions. [2022-03-15 13:49:26,743 INFO L78 Accepts]: Start accepts. Automaton has 9076 states and 24492 transitions. Word has length 109 [2022-03-15 13:49:26,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:26,743 INFO L470 AbstractCegarLoop]: Abstraction has 9076 states and 24492 transitions. [2022-03-15 13:49:26,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:26,744 INFO L276 IsEmpty]: Start isEmpty. Operand 9076 states and 24492 transitions. [2022-03-15 13:49:26,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:26,755 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:26,755 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:26,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-15 13:49:26,756 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:26,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:26,756 INFO L85 PathProgramCache]: Analyzing trace with hash -2116900308, now seen corresponding path program 6 times [2022-03-15 13:49:26,756 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:26,756 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694927099] [2022-03-15 13:49:26,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:26,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:26,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:26,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:26,865 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:26,865 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694927099] [2022-03-15 13:49:26,865 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694927099] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:26,865 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:26,865 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:26,865 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713300454] [2022-03-15 13:49:26,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:26,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:26,866 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:26,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:26,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:26,866 INFO L87 Difference]: Start difference. First operand 9076 states and 24492 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:27,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:27,270 INFO L93 Difference]: Finished difference Result 10794 states and 29050 transitions. [2022-03-15 13:49:27,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-15 13:49:27,270 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:27,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:27,286 INFO L225 Difference]: With dead ends: 10794 [2022-03-15 13:49:27,286 INFO L226 Difference]: Without dead ends: 10270 [2022-03-15 13:49:27,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=934, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:49:27,287 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 291 mSDsluCounter, 4068 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 4394 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:27,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 4394 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:27,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10270 states. [2022-03-15 13:49:27,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10270 to 9034. [2022-03-15 13:49:27,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9034 states, 9033 states have (on average 2.7008745710173807) internal successors, (24397), 9033 states have internal predecessors, (24397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:27,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9034 states to 9034 states and 24397 transitions. [2022-03-15 13:49:27,413 INFO L78 Accepts]: Start accepts. Automaton has 9034 states and 24397 transitions. Word has length 109 [2022-03-15 13:49:27,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:27,413 INFO L470 AbstractCegarLoop]: Abstraction has 9034 states and 24397 transitions. [2022-03-15 13:49:27,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:27,414 INFO L276 IsEmpty]: Start isEmpty. Operand 9034 states and 24397 transitions. [2022-03-15 13:49:27,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:27,424 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:27,424 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:27,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-15 13:49:27,424 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:27,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:27,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1522439320, now seen corresponding path program 7 times [2022-03-15 13:49:27,424 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:27,424 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935925769] [2022-03-15 13:49:27,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:27,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:27,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:27,535 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:27,535 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935925769] [2022-03-15 13:49:27,535 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935925769] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:27,535 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:27,535 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:27,535 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689038392] [2022-03-15 13:49:27,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:27,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:27,535 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:27,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:27,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:27,536 INFO L87 Difference]: Start difference. First operand 9034 states and 24397 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:27,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:27,976 INFO L93 Difference]: Finished difference Result 11006 states and 29645 transitions. [2022-03-15 13:49:27,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:49:27,976 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:27,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:27,995 INFO L225 Difference]: With dead ends: 11006 [2022-03-15 13:49:27,996 INFO L226 Difference]: Without dead ends: 10521 [2022-03-15 13:49:27,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=312, Invalid=1020, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:49:27,996 INFO L933 BasicCegarLoop]: 374 mSDtfsCounter, 278 mSDsluCounter, 2781 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 3103 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:27,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [278 Valid, 3103 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:28,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10521 states. [2022-03-15 13:49:28,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10521 to 9054. [2022-03-15 13:49:28,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9054 states, 9053 states have (on average 2.7005412570418645) internal successors, (24448), 9053 states have internal predecessors, (24448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:28,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9054 states to 9054 states and 24448 transitions. [2022-03-15 13:49:28,142 INFO L78 Accepts]: Start accepts. Automaton has 9054 states and 24448 transitions. Word has length 109 [2022-03-15 13:49:28,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:28,142 INFO L470 AbstractCegarLoop]: Abstraction has 9054 states and 24448 transitions. [2022-03-15 13:49:28,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:28,142 INFO L276 IsEmpty]: Start isEmpty. Operand 9054 states and 24448 transitions. [2022-03-15 13:49:28,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:28,154 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:28,154 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:28,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-15 13:49:28,154 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:28,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:28,154 INFO L85 PathProgramCache]: Analyzing trace with hash -840818666, now seen corresponding path program 8 times [2022-03-15 13:49:28,154 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:28,155 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161239763] [2022-03-15 13:49:28,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:28,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:28,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:28,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:28,261 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:28,261 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161239763] [2022-03-15 13:49:28,261 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161239763] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:28,261 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:28,261 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:28,261 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851898902] [2022-03-15 13:49:28,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:28,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:28,262 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:28,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:28,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:28,262 INFO L87 Difference]: Start difference. First operand 9054 states and 24448 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:28,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:28,723 INFO L93 Difference]: Finished difference Result 10964 states and 29534 transitions. [2022-03-15 13:49:28,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:49:28,723 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:28,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:28,737 INFO L225 Difference]: With dead ends: 10964 [2022-03-15 13:49:28,737 INFO L226 Difference]: Without dead ends: 10478 [2022-03-15 13:49:28,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=389, Invalid=1171, Unknown=0, NotChecked=0, Total=1560 [2022-03-15 13:49:28,738 INFO L933 BasicCegarLoop]: 375 mSDtfsCounter, 264 mSDsluCounter, 2785 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 3112 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:28,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [264 Valid, 3112 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:28,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10478 states. [2022-03-15 13:49:28,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10478 to 9050. [2022-03-15 13:49:28,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9050 states, 9049 states have (on average 2.700519394408222) internal successors, (24437), 9049 states have internal predecessors, (24437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:28,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9050 states to 9050 states and 24437 transitions. [2022-03-15 13:49:28,911 INFO L78 Accepts]: Start accepts. Automaton has 9050 states and 24437 transitions. Word has length 109 [2022-03-15 13:49:28,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:28,911 INFO L470 AbstractCegarLoop]: Abstraction has 9050 states and 24437 transitions. [2022-03-15 13:49:28,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:28,912 INFO L276 IsEmpty]: Start isEmpty. Operand 9050 states and 24437 transitions. [2022-03-15 13:49:28,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:28,922 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:28,922 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:28,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-15 13:49:28,922 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:28,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:28,923 INFO L85 PathProgramCache]: Analyzing trace with hash -140131110, now seen corresponding path program 9 times [2022-03-15 13:49:28,923 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:28,923 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164801065] [2022-03-15 13:49:28,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:28,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:28,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:29,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:29,039 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:29,039 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164801065] [2022-03-15 13:49:29,039 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164801065] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:29,039 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:29,039 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:29,040 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062068125] [2022-03-15 13:49:29,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:29,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:29,040 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:29,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:29,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:29,040 INFO L87 Difference]: Start difference. First operand 9050 states and 24437 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:29,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:29,534 INFO L93 Difference]: Finished difference Result 11032 states and 29701 transitions. [2022-03-15 13:49:29,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-15 13:49:29,535 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:29,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:29,549 INFO L225 Difference]: With dead ends: 11032 [2022-03-15 13:49:29,549 INFO L226 Difference]: Without dead ends: 10506 [2022-03-15 13:49:29,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=497, Invalid=1309, Unknown=0, NotChecked=0, Total=1806 [2022-03-15 13:49:29,550 INFO L933 BasicCegarLoop]: 375 mSDtfsCounter, 331 mSDsluCounter, 2126 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 2461 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:29,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [331 Valid, 2461 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:29,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10506 states. [2022-03-15 13:49:29,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10506 to 9046. [2022-03-15 13:49:29,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9046 states, 9045 states have (on average 2.7004975124378108) internal successors, (24426), 9045 states have internal predecessors, (24426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:29,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9046 states to 9046 states and 24426 transitions. [2022-03-15 13:49:29,666 INFO L78 Accepts]: Start accepts. Automaton has 9046 states and 24426 transitions. Word has length 109 [2022-03-15 13:49:29,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:29,666 INFO L470 AbstractCegarLoop]: Abstraction has 9046 states and 24426 transitions. [2022-03-15 13:49:29,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:29,667 INFO L276 IsEmpty]: Start isEmpty. Operand 9046 states and 24426 transitions. [2022-03-15 13:49:29,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:29,676 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:29,676 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:29,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-15 13:49:29,677 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:29,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:29,677 INFO L85 PathProgramCache]: Analyzing trace with hash 937556918, now seen corresponding path program 10 times [2022-03-15 13:49:29,677 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:29,677 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507640348] [2022-03-15 13:49:29,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:29,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:29,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:29,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:29,781 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:29,781 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507640348] [2022-03-15 13:49:29,781 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507640348] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:29,781 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:29,781 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:29,781 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968966161] [2022-03-15 13:49:29,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:29,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:29,782 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:29,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:29,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:29,782 INFO L87 Difference]: Start difference. First operand 9046 states and 24426 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:30,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:30,302 INFO L93 Difference]: Finished difference Result 11162 states and 30045 transitions. [2022-03-15 13:49:30,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:49:30,302 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:30,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:30,318 INFO L225 Difference]: With dead ends: 11162 [2022-03-15 13:49:30,319 INFO L226 Difference]: Without dead ends: 10634 [2022-03-15 13:49:30,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=453, Invalid=1617, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:49:30,319 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 345 mSDsluCounter, 3740 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 4055 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:30,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [345 Valid, 4055 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:49:30,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10634 states. [2022-03-15 13:49:30,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10634 to 9050. [2022-03-15 13:49:30,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9050 states, 9049 states have (on average 2.7000773566139906) internal successors, (24433), 9049 states have internal predecessors, (24433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:30,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9050 states to 9050 states and 24433 transitions. [2022-03-15 13:49:30,455 INFO L78 Accepts]: Start accepts. Automaton has 9050 states and 24433 transitions. Word has length 109 [2022-03-15 13:49:30,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:30,455 INFO L470 AbstractCegarLoop]: Abstraction has 9050 states and 24433 transitions. [2022-03-15 13:49:30,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:30,455 INFO L276 IsEmpty]: Start isEmpty. Operand 9050 states and 24433 transitions. [2022-03-15 13:49:30,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:30,466 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:30,466 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:30,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-15 13:49:30,466 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:30,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:30,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1570475424, now seen corresponding path program 11 times [2022-03-15 13:49:30,467 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:30,467 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325861693] [2022-03-15 13:49:30,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:30,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:30,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:30,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:30,580 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:30,581 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325861693] [2022-03-15 13:49:30,581 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325861693] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:30,581 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:30,581 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:30,581 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389607806] [2022-03-15 13:49:30,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:30,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:30,581 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:30,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:30,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:30,581 INFO L87 Difference]: Start difference. First operand 9050 states and 24433 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:31,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:31,055 INFO L93 Difference]: Finished difference Result 10998 states and 29615 transitions. [2022-03-15 13:49:31,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:49:31,055 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:31,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:31,098 INFO L225 Difference]: With dead ends: 10998 [2022-03-15 13:49:31,099 INFO L226 Difference]: Without dead ends: 10513 [2022-03-15 13:49:31,099 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=330, Invalid=1076, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:49:31,099 INFO L933 BasicCegarLoop]: 381 mSDtfsCounter, 282 mSDsluCounter, 3576 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 3896 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:31,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 3896 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:49:31,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10513 states. [2022-03-15 13:49:31,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10513 to 9054. [2022-03-15 13:49:31,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9054 states, 9053 states have (on average 2.699657572075555) internal successors, (24440), 9053 states have internal predecessors, (24440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:31,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9054 states to 9054 states and 24440 transitions. [2022-03-15 13:49:31,265 INFO L78 Accepts]: Start accepts. Automaton has 9054 states and 24440 transitions. Word has length 109 [2022-03-15 13:49:31,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:31,265 INFO L470 AbstractCegarLoop]: Abstraction has 9054 states and 24440 transitions. [2022-03-15 13:49:31,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:31,265 INFO L276 IsEmpty]: Start isEmpty. Operand 9054 states and 24440 transitions. [2022-03-15 13:49:31,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:31,277 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:31,277 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:31,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-15 13:49:31,277 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:31,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:31,278 INFO L85 PathProgramCache]: Analyzing trace with hash -888854770, now seen corresponding path program 12 times [2022-03-15 13:49:31,278 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:31,278 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370761896] [2022-03-15 13:49:31,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:31,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:31,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:31,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:31,385 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:31,385 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370761896] [2022-03-15 13:49:31,385 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370761896] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:31,385 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:31,385 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:31,386 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845460256] [2022-03-15 13:49:31,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:31,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:31,386 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:31,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:31,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:31,386 INFO L87 Difference]: Start difference. First operand 9054 states and 24440 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:31,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:31,835 INFO L93 Difference]: Finished difference Result 10932 states and 29438 transitions. [2022-03-15 13:49:31,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:49:31,836 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:31,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:31,858 INFO L225 Difference]: With dead ends: 10932 [2022-03-15 13:49:31,858 INFO L226 Difference]: Without dead ends: 10438 [2022-03-15 13:49:31,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=369, Invalid=1113, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:49:31,858 INFO L933 BasicCegarLoop]: 373 mSDtfsCounter, 269 mSDsluCounter, 3302 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 3621 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:31,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 3621 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:31,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10438 states. [2022-03-15 13:49:31,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10438 to 9042. [2022-03-15 13:49:31,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9042 states, 9041 states have (on average 2.700475611104966) internal successors, (24415), 9041 states have internal predecessors, (24415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:32,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9042 states to 9042 states and 24415 transitions. [2022-03-15 13:49:32,010 INFO L78 Accepts]: Start accepts. Automaton has 9042 states and 24415 transitions. Word has length 109 [2022-03-15 13:49:32,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:32,011 INFO L470 AbstractCegarLoop]: Abstraction has 9042 states and 24415 transitions. [2022-03-15 13:49:32,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:32,011 INFO L276 IsEmpty]: Start isEmpty. Operand 9042 states and 24415 transitions. [2022-03-15 13:49:32,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:32,022 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:32,022 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:32,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-15 13:49:32,023 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:32,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:32,023 INFO L85 PathProgramCache]: Analyzing trace with hash -565920918, now seen corresponding path program 13 times [2022-03-15 13:49:32,023 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:32,023 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426270029] [2022-03-15 13:49:32,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:32,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:32,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:32,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:32,139 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:32,139 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426270029] [2022-03-15 13:49:32,139 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426270029] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:32,139 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:32,140 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:32,140 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191053568] [2022-03-15 13:49:32,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:32,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:32,140 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:32,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:32,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:32,140 INFO L87 Difference]: Start difference. First operand 9042 states and 24415 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:32,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:32,774 INFO L93 Difference]: Finished difference Result 11295 states and 30392 transitions. [2022-03-15 13:49:32,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-15 13:49:32,775 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:32,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:32,797 INFO L225 Difference]: With dead ends: 11295 [2022-03-15 13:49:32,798 INFO L226 Difference]: Without dead ends: 10724 [2022-03-15 13:49:32,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 761 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=631, Invalid=2231, Unknown=0, NotChecked=0, Total=2862 [2022-03-15 13:49:32,799 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 408 mSDsluCounter, 3826 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 4141 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:32,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [408 Valid, 4141 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:49:32,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10724 states. [2022-03-15 13:49:32,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10724 to 9046. [2022-03-15 13:49:32,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9046 states, 9045 states have (on average 2.700055279159757) internal successors, (24422), 9045 states have internal predecessors, (24422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:32,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9046 states to 9046 states and 24422 transitions. [2022-03-15 13:49:32,956 INFO L78 Accepts]: Start accepts. Automaton has 9046 states and 24422 transitions. Word has length 109 [2022-03-15 13:49:32,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:32,956 INFO L470 AbstractCegarLoop]: Abstraction has 9046 states and 24422 transitions. [2022-03-15 13:49:32,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:32,957 INFO L276 IsEmpty]: Start isEmpty. Operand 9046 states and 24422 transitions. [2022-03-15 13:49:32,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:32,968 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:32,968 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:32,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-15 13:49:32,968 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:32,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:32,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1223641536, now seen corresponding path program 14 times [2022-03-15 13:49:32,969 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:32,969 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222507578] [2022-03-15 13:49:32,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:32,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:32,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:33,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:33,080 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:33,080 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222507578] [2022-03-15 13:49:33,080 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222507578] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:33,080 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:33,080 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:33,080 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050265913] [2022-03-15 13:49:33,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:33,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:33,080 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:33,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:33,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:33,081 INFO L87 Difference]: Start difference. First operand 9046 states and 24422 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:33,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:33,664 INFO L93 Difference]: Finished difference Result 11170 states and 30063 transitions. [2022-03-15 13:49:33,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:49:33,665 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:33,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:33,695 INFO L225 Difference]: With dead ends: 11170 [2022-03-15 13:49:33,695 INFO L226 Difference]: Without dead ends: 10642 [2022-03-15 13:49:33,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=465, Invalid=1697, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 13:49:33,696 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 343 mSDsluCounter, 3745 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 4061 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:33,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 4061 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:49:33,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10642 states. [2022-03-15 13:49:33,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10642 to 9050. [2022-03-15 13:49:33,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9050 states, 9049 states have (on average 2.6996353188197593) internal successors, (24429), 9049 states have internal predecessors, (24429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:33,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9050 states to 9050 states and 24429 transitions. [2022-03-15 13:49:33,853 INFO L78 Accepts]: Start accepts. Automaton has 9050 states and 24429 transitions. Word has length 109 [2022-03-15 13:49:33,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:33,853 INFO L470 AbstractCegarLoop]: Abstraction has 9050 states and 24429 transitions. [2022-03-15 13:49:33,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:33,853 INFO L276 IsEmpty]: Start isEmpty. Operand 9050 states and 24429 transitions. [2022-03-15 13:49:33,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:33,865 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:33,866 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:33,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-15 13:49:33,867 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:33,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:33,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1284390806, now seen corresponding path program 15 times [2022-03-15 13:49:33,867 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:33,867 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508666620] [2022-03-15 13:49:33,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:33,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:33,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:33,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:33,983 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:33,983 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508666620] [2022-03-15 13:49:33,983 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508666620] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:33,983 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:33,984 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:33,984 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840323283] [2022-03-15 13:49:33,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:33,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:33,984 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:33,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:33,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:33,984 INFO L87 Difference]: Start difference. First operand 9050 states and 24429 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:34,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:34,502 INFO L93 Difference]: Finished difference Result 11006 states and 29633 transitions. [2022-03-15 13:49:34,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:49:34,503 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:34,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:34,519 INFO L225 Difference]: With dead ends: 11006 [2022-03-15 13:49:34,519 INFO L226 Difference]: Without dead ends: 10521 [2022-03-15 13:49:34,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=324, Invalid=1082, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:49:34,520 INFO L933 BasicCegarLoop]: 378 mSDtfsCounter, 280 mSDsluCounter, 3358 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 3676 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:34,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 3676 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:34,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10521 states. [2022-03-15 13:49:34,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10521 to 9054. [2022-03-15 13:49:34,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9054 states, 9053 states have (on average 2.6992157295924004) internal successors, (24436), 9053 states have internal predecessors, (24436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:34,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9054 states to 9054 states and 24436 transitions. [2022-03-15 13:49:34,655 INFO L78 Accepts]: Start accepts. Automaton has 9054 states and 24436 transitions. Word has length 109 [2022-03-15 13:49:34,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:34,655 INFO L470 AbstractCegarLoop]: Abstraction has 9054 states and 24436 transitions. [2022-03-15 13:49:34,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:34,655 INFO L276 IsEmpty]: Start isEmpty. Operand 9054 states and 24436 transitions. [2022-03-15 13:49:34,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:34,667 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:34,667 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:34,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-15 13:49:34,667 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:34,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:34,667 INFO L85 PathProgramCache]: Analyzing trace with hash -602770152, now seen corresponding path program 16 times [2022-03-15 13:49:34,667 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:34,668 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345847260] [2022-03-15 13:49:34,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:34,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:34,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:34,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:34,773 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:34,773 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345847260] [2022-03-15 13:49:34,774 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345847260] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:34,774 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:34,774 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:34,774 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019088676] [2022-03-15 13:49:34,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:34,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:34,774 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:34,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:34,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:34,775 INFO L87 Difference]: Start difference. First operand 9054 states and 24436 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:35,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:35,210 INFO L93 Difference]: Finished difference Result 10932 states and 29434 transitions. [2022-03-15 13:49:35,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:49:35,210 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:35,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:35,226 INFO L225 Difference]: With dead ends: 10932 [2022-03-15 13:49:35,226 INFO L226 Difference]: Without dead ends: 10434 [2022-03-15 13:49:35,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=351, Invalid=1055, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:49:35,227 INFO L933 BasicCegarLoop]: 370 mSDtfsCounter, 267 mSDsluCounter, 3822 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 4132 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:35,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 4132 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:35,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10434 states. [2022-03-15 13:49:35,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10434 to 9038. [2022-03-15 13:49:35,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9038 states, 9037 states have (on average 2.700453690383977) internal successors, (24404), 9037 states have internal predecessors, (24404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:35,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9038 states to 9038 states and 24404 transitions. [2022-03-15 13:49:35,366 INFO L78 Accepts]: Start accepts. Automaton has 9038 states and 24404 transitions. Word has length 109 [2022-03-15 13:49:35,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:35,367 INFO L470 AbstractCegarLoop]: Abstraction has 9038 states and 24404 transitions. [2022-03-15 13:49:35,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:35,367 INFO L276 IsEmpty]: Start isEmpty. Operand 9038 states and 24404 transitions. [2022-03-15 13:49:35,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:35,378 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:35,378 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:35,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-15 13:49:35,379 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:35,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:35,379 INFO L85 PathProgramCache]: Analyzing trace with hash 71721492, now seen corresponding path program 17 times [2022-03-15 13:49:35,379 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:35,379 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464619012] [2022-03-15 13:49:35,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:35,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:35,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:35,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:35,491 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:35,492 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464619012] [2022-03-15 13:49:35,492 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464619012] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:35,492 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:35,492 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:35,492 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342020785] [2022-03-15 13:49:35,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:35,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:35,492 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:35,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:35,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:35,492 INFO L87 Difference]: Start difference. First operand 9038 states and 24404 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:36,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:36,269 INFO L93 Difference]: Finished difference Result 11315 states and 30422 transitions. [2022-03-15 13:49:36,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-15 13:49:36,269 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:36,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:36,286 INFO L225 Difference]: With dead ends: 11315 [2022-03-15 13:49:36,286 INFO L226 Difference]: Without dead ends: 10701 [2022-03-15 13:49:36,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1082 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=849, Invalid=2933, Unknown=0, NotChecked=0, Total=3782 [2022-03-15 13:49:36,287 INFO L933 BasicCegarLoop]: 407 mSDtfsCounter, 489 mSDsluCounter, 4198 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 4507 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:36,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [489 Valid, 4507 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:49:36,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10701 states. [2022-03-15 13:49:36,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10701 to 9042. [2022-03-15 13:49:36,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9042 states, 9041 states have (on average 2.700033182170114) internal successors, (24411), 9041 states have internal predecessors, (24411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:36,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9042 states to 9042 states and 24411 transitions. [2022-03-15 13:49:36,430 INFO L78 Accepts]: Start accepts. Automaton has 9042 states and 24411 transitions. Word has length 109 [2022-03-15 13:49:36,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:36,430 INFO L470 AbstractCegarLoop]: Abstraction has 9042 states and 24411 transitions. [2022-03-15 13:49:36,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:36,431 INFO L276 IsEmpty]: Start isEmpty. Operand 9042 states and 24411 transitions. [2022-03-15 13:49:36,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:36,442 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:36,442 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:36,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-15 13:49:36,442 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:36,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:36,442 INFO L85 PathProgramCache]: Analyzing trace with hash -985574662, now seen corresponding path program 18 times [2022-03-15 13:49:36,442 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:36,443 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218322255] [2022-03-15 13:49:36,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:36,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:36,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:36,558 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:36,558 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218322255] [2022-03-15 13:49:36,558 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218322255] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:36,558 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:36,558 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:36,558 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391934578] [2022-03-15 13:49:36,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:36,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:36,558 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:36,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:36,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:36,559 INFO L87 Difference]: Start difference. First operand 9042 states and 24411 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:37,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:37,221 INFO L93 Difference]: Finished difference Result 11167 states and 30036 transitions. [2022-03-15 13:49:37,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-15 13:49:37,221 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:37,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:37,236 INFO L225 Difference]: With dead ends: 11167 [2022-03-15 13:49:37,236 INFO L226 Difference]: Without dead ends: 10596 [2022-03-15 13:49:37,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 775 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=637, Invalid=2333, Unknown=0, NotChecked=0, Total=2970 [2022-03-15 13:49:37,237 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 413 mSDsluCounter, 4100 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 4406 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:37,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 4406 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:49:37,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10596 states. [2022-03-15 13:49:37,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10596 to 9046. [2022-03-15 13:49:37,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9046 states, 9045 states have (on average 2.6996130458817027) internal successors, (24418), 9045 states have internal predecessors, (24418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:37,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9046 states to 9046 states and 24418 transitions. [2022-03-15 13:49:37,355 INFO L78 Accepts]: Start accepts. Automaton has 9046 states and 24418 transitions. Word has length 109 [2022-03-15 13:49:37,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:37,355 INFO L470 AbstractCegarLoop]: Abstraction has 9046 states and 24418 transitions. [2022-03-15 13:49:37,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:37,355 INFO L276 IsEmpty]: Start isEmpty. Operand 9046 states and 24418 transitions. [2022-03-15 13:49:37,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:37,365 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:37,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:37,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-03-15 13:49:37,366 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:37,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:37,366 INFO L85 PathProgramCache]: Analyzing trace with hash 803987792, now seen corresponding path program 19 times [2022-03-15 13:49:37,366 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:37,366 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332737671] [2022-03-15 13:49:37,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:37,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:37,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:37,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:37,478 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:37,478 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332737671] [2022-03-15 13:49:37,478 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332737671] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:37,478 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:37,478 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:37,478 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753337888] [2022-03-15 13:49:37,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:37,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:37,478 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:37,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:37,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:37,479 INFO L87 Difference]: Start difference. First operand 9046 states and 24418 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:38,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:38,049 INFO L93 Difference]: Finished difference Result 11050 states and 29729 transitions. [2022-03-15 13:49:38,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:49:38,050 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:38,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:38,065 INFO L225 Difference]: With dead ends: 11050 [2022-03-15 13:49:38,065 INFO L226 Difference]: Without dead ends: 10522 [2022-03-15 13:49:38,066 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=454, Invalid=1708, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 13:49:38,066 INFO L933 BasicCegarLoop]: 383 mSDtfsCounter, 350 mSDsluCounter, 3988 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 4292 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:38,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 4292 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:49:38,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10522 states. [2022-03-15 13:49:38,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10522 to 9050. [2022-03-15 13:49:38,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9050 states, 9049 states have (on average 2.6991932810255275) internal successors, (24425), 9049 states have internal predecessors, (24425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:38,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9050 states to 9050 states and 24425 transitions. [2022-03-15 13:49:38,186 INFO L78 Accepts]: Start accepts. Automaton has 9050 states and 24425 transitions. Word has length 109 [2022-03-15 13:49:38,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:38,187 INFO L470 AbstractCegarLoop]: Abstraction has 9050 states and 24425 transitions. [2022-03-15 13:49:38,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:38,187 INFO L276 IsEmpty]: Start isEmpty. Operand 9050 states and 24425 transitions. [2022-03-15 13:49:38,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:38,197 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:38,197 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:38,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-03-15 13:49:38,197 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:38,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:38,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1704044550, now seen corresponding path program 20 times [2022-03-15 13:49:38,198 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:38,198 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133877986] [2022-03-15 13:49:38,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:38,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:38,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:38,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:38,304 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:38,304 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133877986] [2022-03-15 13:49:38,304 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133877986] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:38,304 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:38,304 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:38,304 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758074438] [2022-03-15 13:49:38,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:38,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:38,305 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:38,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:38,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:38,305 INFO L87 Difference]: Start difference. First operand 9050 states and 24425 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:38,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:38,714 INFO L93 Difference]: Finished difference Result 10902 states and 29343 transitions. [2022-03-15 13:49:38,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:49:38,714 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:38,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:38,730 INFO L225 Difference]: With dead ends: 10902 [2022-03-15 13:49:38,730 INFO L226 Difference]: Without dead ends: 10417 [2022-03-15 13:49:38,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=318, Invalid=1088, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:49:38,731 INFO L933 BasicCegarLoop]: 371 mSDtfsCounter, 290 mSDsluCounter, 3255 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 3569 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:38,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 3569 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:38,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10417 states. [2022-03-15 13:49:38,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10417 to 9054. [2022-03-15 13:49:38,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9054 states, 9053 states have (on average 2.6987738871092457) internal successors, (24432), 9053 states have internal predecessors, (24432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:38,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9054 states to 9054 states and 24432 transitions. [2022-03-15 13:49:38,881 INFO L78 Accepts]: Start accepts. Automaton has 9054 states and 24432 transitions. Word has length 109 [2022-03-15 13:49:38,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:38,881 INFO L470 AbstractCegarLoop]: Abstraction has 9054 states and 24432 transitions. [2022-03-15 13:49:38,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:38,881 INFO L276 IsEmpty]: Start isEmpty. Operand 9054 states and 24432 transitions. [2022-03-15 13:49:38,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:38,893 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:38,893 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:38,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-03-15 13:49:38,893 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:38,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:38,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1022423896, now seen corresponding path program 21 times [2022-03-15 13:49:38,894 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:38,894 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577503816] [2022-03-15 13:49:38,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:38,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:38,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:39,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:39,000 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:39,000 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577503816] [2022-03-15 13:49:39,000 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577503816] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:39,000 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:39,000 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:39,000 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247425705] [2022-03-15 13:49:39,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:39,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:39,001 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:39,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:39,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:39,001 INFO L87 Difference]: Start difference. First operand 9054 states and 24432 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:39,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:39,430 INFO L93 Difference]: Finished difference Result 10772 states and 28990 transitions. [2022-03-15 13:49:39,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-15 13:49:39,430 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:39,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:39,447 INFO L225 Difference]: With dead ends: 10772 [2022-03-15 13:49:39,447 INFO L226 Difference]: Without dead ends: 10244 [2022-03-15 13:49:39,447 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=335, Invalid=997, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:49:39,447 INFO L933 BasicCegarLoop]: 363 mSDtfsCounter, 267 mSDsluCounter, 3505 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 3811 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:39,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 3811 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:39,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10244 states. [2022-03-15 13:49:39,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10244 to 9008. [2022-03-15 13:49:39,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9008 states, 9007 states have (on average 2.701232374819585) internal successors, (24330), 9007 states have internal predecessors, (24330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:39,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9008 states to 9008 states and 24330 transitions. [2022-03-15 13:49:39,593 INFO L78 Accepts]: Start accepts. Automaton has 9008 states and 24330 transitions. Word has length 109 [2022-03-15 13:49:39,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:39,593 INFO L470 AbstractCegarLoop]: Abstraction has 9008 states and 24330 transitions. [2022-03-15 13:49:39,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:39,593 INFO L276 IsEmpty]: Start isEmpty. Operand 9008 states and 24330 transitions. [2022-03-15 13:49:39,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:39,605 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:39,605 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:39,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-03-15 13:49:39,605 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:39,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:39,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1360774976, now seen corresponding path program 22 times [2022-03-15 13:49:39,606 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:39,606 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056895758] [2022-03-15 13:49:39,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:39,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:39,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:39,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:39,729 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:39,730 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056895758] [2022-03-15 13:49:39,730 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056895758] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:39,730 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:39,730 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:39,730 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990240336] [2022-03-15 13:49:39,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:39,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:39,730 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:39,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:39,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:39,730 INFO L87 Difference]: Start difference. First operand 9008 states and 24330 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:40,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:40,229 INFO L93 Difference]: Finished difference Result 11068 states and 29820 transitions. [2022-03-15 13:49:40,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:49:40,233 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:40,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:40,249 INFO L225 Difference]: With dead ends: 11068 [2022-03-15 13:49:40,249 INFO L226 Difference]: Without dead ends: 10583 [2022-03-15 13:49:40,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=310, Invalid=950, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:49:40,250 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 233 mSDsluCounter, 3250 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 3531 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:40,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 3531 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:40,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10583 states. [2022-03-15 13:49:40,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10583 to 9032. [2022-03-15 13:49:40,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.7009190565828813) internal successors, (24392), 9031 states have internal predecessors, (24392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:40,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24392 transitions. [2022-03-15 13:49:40,385 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24392 transitions. Word has length 109 [2022-03-15 13:49:40,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:40,385 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24392 transitions. [2022-03-15 13:49:40,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:40,385 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24392 transitions. [2022-03-15 13:49:40,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:40,397 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:40,397 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:40,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-03-15 13:49:40,397 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:40,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:40,397 INFO L85 PathProgramCache]: Analyzing trace with hash 2042395630, now seen corresponding path program 23 times [2022-03-15 13:49:40,398 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:40,398 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191112424] [2022-03-15 13:49:40,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:40,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:40,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:40,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:40,500 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:40,500 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191112424] [2022-03-15 13:49:40,500 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191112424] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:40,500 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:40,500 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:40,500 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666608114] [2022-03-15 13:49:40,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:40,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:40,500 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:40,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:40,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:40,501 INFO L87 Difference]: Start difference. First operand 9032 states and 24392 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:40,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:40,975 INFO L93 Difference]: Finished difference Result 11034 states and 29731 transitions. [2022-03-15 13:49:40,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:49:40,975 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:40,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:40,992 INFO L225 Difference]: With dead ends: 11034 [2022-03-15 13:49:40,992 INFO L226 Difference]: Without dead ends: 10548 [2022-03-15 13:49:40,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=369, Invalid=1191, Unknown=0, NotChecked=0, Total=1560 [2022-03-15 13:49:40,993 INFO L933 BasicCegarLoop]: 339 mSDtfsCounter, 230 mSDsluCounter, 2869 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 3164 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:40,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 3164 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:41,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10548 states. [2022-03-15 13:49:41,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10548 to 9028. [2022-03-15 13:49:41,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.7008973080757728) internal successors, (24381), 9027 states have internal predecessors, (24381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:41,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24381 transitions. [2022-03-15 13:49:41,147 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24381 transitions. Word has length 109 [2022-03-15 13:49:41,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:41,147 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24381 transitions. [2022-03-15 13:49:41,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:41,147 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24381 transitions. [2022-03-15 13:49:41,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:41,158 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:41,158 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:41,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-03-15 13:49:41,159 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:41,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:41,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1551884110, now seen corresponding path program 24 times [2022-03-15 13:49:41,159 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:41,159 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229278434] [2022-03-15 13:49:41,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:41,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:41,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:41,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:41,280 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:41,280 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229278434] [2022-03-15 13:49:41,280 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229278434] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:41,280 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:41,280 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:41,280 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336765357] [2022-03-15 13:49:41,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:41,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:41,281 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:41,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:41,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:41,281 INFO L87 Difference]: Start difference. First operand 9028 states and 24381 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:41,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:41,918 INFO L93 Difference]: Finished difference Result 11070 states and 29826 transitions. [2022-03-15 13:49:41,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:49:41,919 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:41,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:41,935 INFO L225 Difference]: With dead ends: 11070 [2022-03-15 13:49:41,935 INFO L226 Difference]: Without dead ends: 10544 [2022-03-15 13:49:41,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=542, Invalid=1620, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 13:49:41,936 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 280 mSDsluCounter, 3376 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 3671 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:41,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 3671 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:49:41,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10544 states. [2022-03-15 13:49:42,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10544 to 9024. [2022-03-15 13:49:42,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9024 states, 9023 states have (on average 2.700875540285936) internal successors, (24370), 9023 states have internal predecessors, (24370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:42,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 24370 transitions. [2022-03-15 13:49:42,079 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 24370 transitions. Word has length 109 [2022-03-15 13:49:42,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:42,079 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 24370 transitions. [2022-03-15 13:49:42,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:42,079 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 24370 transitions. [2022-03-15 13:49:42,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:42,091 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:42,091 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:42,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-03-15 13:49:42,091 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:42,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:42,091 INFO L85 PathProgramCache]: Analyzing trace with hash 599006722, now seen corresponding path program 25 times [2022-03-15 13:49:42,091 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:42,091 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251910297] [2022-03-15 13:49:42,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:42,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:42,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:42,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:42,203 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:42,203 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251910297] [2022-03-15 13:49:42,203 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251910297] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:42,203 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:42,203 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:42,203 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912315525] [2022-03-15 13:49:42,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:42,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:42,204 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:42,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:42,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:42,204 INFO L87 Difference]: Start difference. First operand 9024 states and 24370 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:42,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:42,823 INFO L93 Difference]: Finished difference Result 11158 states and 30040 transitions. [2022-03-15 13:49:42,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-15 13:49:42,823 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:42,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:42,839 INFO L225 Difference]: With dead ends: 11158 [2022-03-15 13:49:42,840 INFO L226 Difference]: Without dead ends: 10592 [2022-03-15 13:49:42,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=684, Invalid=1968, Unknown=0, NotChecked=0, Total=2652 [2022-03-15 13:49:42,840 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 348 mSDsluCounter, 3150 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 3447 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:42,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [348 Valid, 3447 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:42,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10592 states. [2022-03-15 13:49:42,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10592 to 9020. [2022-03-15 13:49:42,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9020 states, 9019 states have (on average 2.700853753187715) internal successors, (24359), 9019 states have internal predecessors, (24359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:42,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9020 states to 9020 states and 24359 transitions. [2022-03-15 13:49:42,980 INFO L78 Accepts]: Start accepts. Automaton has 9020 states and 24359 transitions. Word has length 109 [2022-03-15 13:49:42,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:42,980 INFO L470 AbstractCegarLoop]: Abstraction has 9020 states and 24359 transitions. [2022-03-15 13:49:42,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:42,980 INFO L276 IsEmpty]: Start isEmpty. Operand 9020 states and 24359 transitions. [2022-03-15 13:49:42,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:42,992 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:42,992 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:42,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-03-15 13:49:42,992 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:42,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:42,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1903548090, now seen corresponding path program 26 times [2022-03-15 13:49:42,993 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:42,993 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609397779] [2022-03-15 13:49:42,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:42,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:43,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:43,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:43,115 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:43,115 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609397779] [2022-03-15 13:49:43,115 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609397779] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:43,115 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:43,115 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:43,115 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519666879] [2022-03-15 13:49:43,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:43,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:43,115 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:43,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:43,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:43,116 INFO L87 Difference]: Start difference. First operand 9020 states and 24359 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:43,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:43,573 INFO L93 Difference]: Finished difference Result 11132 states and 29992 transitions. [2022-03-15 13:49:43,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:49:43,573 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:43,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:43,591 INFO L225 Difference]: With dead ends: 11132 [2022-03-15 13:49:43,591 INFO L226 Difference]: Without dead ends: 10647 [2022-03-15 13:49:43,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=1006, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:49:43,592 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 251 mSDsluCounter, 2973 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 3266 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:43,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 3266 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:43,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10647 states. [2022-03-15 13:49:43,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10647 to 9032. [2022-03-15 13:49:43,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.7004761377477577) internal successors, (24388), 9031 states have internal predecessors, (24388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:43,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24388 transitions. [2022-03-15 13:49:43,741 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24388 transitions. Word has length 109 [2022-03-15 13:49:43,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:43,741 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24388 transitions. [2022-03-15 13:49:43,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:43,741 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24388 transitions. [2022-03-15 13:49:43,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:43,753 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:43,754 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:43,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-03-15 13:49:43,754 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:43,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:43,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1221927436, now seen corresponding path program 27 times [2022-03-15 13:49:43,754 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:43,754 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820897241] [2022-03-15 13:49:43,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:43,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:43,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:43,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:43,870 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:43,870 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820897241] [2022-03-15 13:49:43,870 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820897241] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:43,870 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:43,870 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:43,870 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230403690] [2022-03-15 13:49:43,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:43,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:43,870 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:43,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:43,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:43,871 INFO L87 Difference]: Start difference. First operand 9032 states and 24388 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:44,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:44,371 INFO L93 Difference]: Finished difference Result 11090 states and 29881 transitions. [2022-03-15 13:49:44,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:49:44,371 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:44,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:44,387 INFO L225 Difference]: With dead ends: 11090 [2022-03-15 13:49:44,388 INFO L226 Difference]: Without dead ends: 10604 [2022-03-15 13:49:44,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=373, Invalid=1187, Unknown=0, NotChecked=0, Total=1560 [2022-03-15 13:49:44,388 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 238 mSDsluCounter, 3327 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 3621 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:44,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [238 Valid, 3621 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:49:44,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10604 states. [2022-03-15 13:49:44,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10604 to 9028. [2022-03-15 13:49:44,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.7004541929766255) internal successors, (24377), 9027 states have internal predecessors, (24377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:44,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24377 transitions. [2022-03-15 13:49:44,533 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24377 transitions. Word has length 109 [2022-03-15 13:49:44,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:44,533 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24377 transitions. [2022-03-15 13:49:44,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:44,533 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24377 transitions. [2022-03-15 13:49:44,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:44,545 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:44,545 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:44,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-03-15 13:49:44,545 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:44,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:44,545 INFO L85 PathProgramCache]: Analyzing trace with hash -521239880, now seen corresponding path program 28 times [2022-03-15 13:49:44,545 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:44,545 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125211016] [2022-03-15 13:49:44,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:44,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:44,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:44,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:44,655 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:44,655 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125211016] [2022-03-15 13:49:44,656 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125211016] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:44,656 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:44,656 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:44,656 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016201022] [2022-03-15 13:49:44,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:44,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:44,656 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:44,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:44,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:44,656 INFO L87 Difference]: Start difference. First operand 9028 states and 24377 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:45,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:45,250 INFO L93 Difference]: Finished difference Result 11218 states and 30213 transitions. [2022-03-15 13:49:45,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:49:45,250 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:45,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:45,267 INFO L225 Difference]: With dead ends: 11218 [2022-03-15 13:49:45,267 INFO L226 Difference]: Without dead ends: 10692 [2022-03-15 13:49:45,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=528, Invalid=1542, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:49:45,268 INFO L933 BasicCegarLoop]: 347 mSDtfsCounter, 311 mSDsluCounter, 2322 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 2632 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:45,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [311 Valid, 2632 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:45,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10692 states. [2022-03-15 13:49:45,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10692 to 9024. [2022-03-15 13:49:45,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9024 states, 9023 states have (on average 2.700432228748753) internal successors, (24366), 9023 states have internal predecessors, (24366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:45,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 24366 transitions. [2022-03-15 13:49:45,418 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 24366 transitions. Word has length 109 [2022-03-15 13:49:45,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:45,418 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 24366 transitions. [2022-03-15 13:49:45,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:45,418 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 24366 transitions. [2022-03-15 13:49:45,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:45,430 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:45,430 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:45,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-03-15 13:49:45,430 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:45,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:45,430 INFO L85 PathProgramCache]: Analyzing trace with hash 556448148, now seen corresponding path program 29 times [2022-03-15 13:49:45,430 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:45,430 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472764318] [2022-03-15 13:49:45,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:45,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:45,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:45,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:45,555 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:45,555 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472764318] [2022-03-15 13:49:45,555 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472764318] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:45,555 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:45,555 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:45,555 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10528879] [2022-03-15 13:49:45,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:45,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:45,556 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:45,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:45,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:45,556 INFO L87 Difference]: Start difference. First operand 9024 states and 24366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:46,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:46,159 INFO L93 Difference]: Finished difference Result 11220 states and 30205 transitions. [2022-03-15 13:49:46,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-15 13:49:46,160 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:46,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:46,176 INFO L225 Difference]: With dead ends: 11220 [2022-03-15 13:49:46,177 INFO L226 Difference]: Without dead ends: 10692 [2022-03-15 13:49:46,177 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=461, Invalid=1519, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 13:49:46,177 INFO L933 BasicCegarLoop]: 353 mSDtfsCounter, 302 mSDsluCounter, 3693 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 3973 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:46,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 3973 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:49:46,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10692 states. [2022-03-15 13:49:46,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10692 to 9028. [2022-03-15 13:49:46,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.7000110778774786) internal successors, (24373), 9027 states have internal predecessors, (24373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:46,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24373 transitions. [2022-03-15 13:49:46,318 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24373 transitions. Word has length 109 [2022-03-15 13:49:46,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:46,318 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24373 transitions. [2022-03-15 13:49:46,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:46,319 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24373 transitions. [2022-03-15 13:49:46,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:46,330 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:46,330 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:46,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-03-15 13:49:46,331 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:46,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:46,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1951584194, now seen corresponding path program 30 times [2022-03-15 13:49:46,331 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:46,331 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944817312] [2022-03-15 13:49:46,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:46,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:46,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:46,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:46,443 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:46,444 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944817312] [2022-03-15 13:49:46,444 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944817312] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:46,444 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:46,444 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:46,444 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038669412] [2022-03-15 13:49:46,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:46,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:46,444 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:46,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:46,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:46,444 INFO L87 Difference]: Start difference. First operand 9028 states and 24373 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:46,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:46,965 INFO L93 Difference]: Finished difference Result 11072 states and 29819 transitions. [2022-03-15 13:49:46,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:49:46,965 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:46,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:46,983 INFO L225 Difference]: With dead ends: 11072 [2022-03-15 13:49:46,984 INFO L226 Difference]: Without dead ends: 10587 [2022-03-15 13:49:46,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=345, Invalid=1061, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:49:46,984 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 241 mSDsluCounter, 3590 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 3874 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:46,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 3874 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:49:47,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10587 states. [2022-03-15 13:49:47,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10587 to 9032. [2022-03-15 13:49:47,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.699590300077511) internal successors, (24380), 9031 states have internal predecessors, (24380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:47,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24380 transitions. [2022-03-15 13:49:47,128 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24380 transitions. Word has length 109 [2022-03-15 13:49:47,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:47,128 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24380 transitions. [2022-03-15 13:49:47,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:47,128 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24380 transitions. [2022-03-15 13:49:47,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:47,138 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:47,138 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:47,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-03-15 13:49:47,138 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:47,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:47,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1269963540, now seen corresponding path program 31 times [2022-03-15 13:49:47,139 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:47,139 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072790602] [2022-03-15 13:49:47,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:47,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:47,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:47,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:47,250 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:47,251 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072790602] [2022-03-15 13:49:47,251 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072790602] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:47,251 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:47,251 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:47,251 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340787241] [2022-03-15 13:49:47,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:47,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:47,251 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:47,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:47,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:47,251 INFO L87 Difference]: Start difference. First operand 9032 states and 24380 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:47,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:47,711 INFO L93 Difference]: Finished difference Result 10990 states and 29598 transitions. [2022-03-15 13:49:47,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:49:47,711 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:47,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:47,728 INFO L225 Difference]: With dead ends: 10990 [2022-03-15 13:49:47,728 INFO L226 Difference]: Without dead ends: 10492 [2022-03-15 13:49:47,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=354, Invalid=1128, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:49:47,729 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 223 mSDsluCounter, 3522 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 3810 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:47,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 3810 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:47,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10492 states. [2022-03-15 13:49:47,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10492 to 9016. [2022-03-15 13:49:47,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9016 states, 9015 states have (on average 2.700831946755408) internal successors, (24348), 9015 states have internal predecessors, (24348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:47,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9016 states to 9016 states and 24348 transitions. [2022-03-15 13:49:47,879 INFO L78 Accepts]: Start accepts. Automaton has 9016 states and 24348 transitions. Word has length 109 [2022-03-15 13:49:47,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:47,879 INFO L470 AbstractCegarLoop]: Abstraction has 9016 states and 24348 transitions. [2022-03-15 13:49:47,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:47,880 INFO L276 IsEmpty]: Start isEmpty. Operand 9016 states and 24348 transitions. [2022-03-15 13:49:47,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:47,891 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:47,892 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:47,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-03-15 13:49:47,892 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:47,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:47,892 INFO L85 PathProgramCache]: Analyzing trace with hash -821603778, now seen corresponding path program 32 times [2022-03-15 13:49:47,892 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:47,892 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690388160] [2022-03-15 13:49:47,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:47,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:47,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:48,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:48,015 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:48,015 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690388160] [2022-03-15 13:49:48,015 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690388160] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:48,015 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:48,015 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:48,015 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491259807] [2022-03-15 13:49:48,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:48,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:48,016 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:48,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:48,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:48,016 INFO L87 Difference]: Start difference. First operand 9016 states and 24348 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:48,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:48,497 INFO L93 Difference]: Finished difference Result 11168 states and 30091 transitions. [2022-03-15 13:49:48,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:49:48,497 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:48,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:48,514 INFO L225 Difference]: With dead ends: 11168 [2022-03-15 13:49:48,514 INFO L226 Difference]: Without dead ends: 10683 [2022-03-15 13:49:48,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=320, Invalid=1012, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:49:48,515 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 251 mSDsluCounter, 3348 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 3632 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:48,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 3632 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:49:48,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10683 states. [2022-03-15 13:49:48,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10683 to 9032. [2022-03-15 13:49:48,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.7004761377477577) internal successors, (24388), 9031 states have internal predecessors, (24388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:48,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24388 transitions. [2022-03-15 13:49:48,656 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24388 transitions. Word has length 109 [2022-03-15 13:49:48,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:48,656 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24388 transitions. [2022-03-15 13:49:48,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:48,656 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24388 transitions. [2022-03-15 13:49:48,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:48,668 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:48,668 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:48,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-03-15 13:49:48,668 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:48,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:48,669 INFO L85 PathProgramCache]: Analyzing trace with hash -139983124, now seen corresponding path program 33 times [2022-03-15 13:49:48,669 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:48,669 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954125822] [2022-03-15 13:49:48,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:48,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:48,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:48,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:48,775 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:48,776 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954125822] [2022-03-15 13:49:48,776 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954125822] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:48,776 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:48,776 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:48,776 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896699054] [2022-03-15 13:49:48,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:48,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:48,776 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:48,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:48,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:48,776 INFO L87 Difference]: Start difference. First operand 9032 states and 24388 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:49,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:49,264 INFO L93 Difference]: Finished difference Result 11126 states and 29980 transitions. [2022-03-15 13:49:49,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:49:49,264 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:49,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:49,281 INFO L225 Difference]: With dead ends: 11126 [2022-03-15 13:49:49,281 INFO L226 Difference]: Without dead ends: 10640 [2022-03-15 13:49:49,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=377, Invalid=1183, Unknown=0, NotChecked=0, Total=1560 [2022-03-15 13:49:49,281 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 236 mSDsluCounter, 3534 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 3824 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:49,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 3824 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:49:49,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10640 states. [2022-03-15 13:49:49,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10640 to 9028. [2022-03-15 13:49:49,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.7004541929766255) internal successors, (24377), 9027 states have internal predecessors, (24377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:49,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24377 transitions. [2022-03-15 13:49:49,423 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24377 transitions. Word has length 109 [2022-03-15 13:49:49,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:49,423 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24377 transitions. [2022-03-15 13:49:49,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:49,423 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24377 transitions. [2022-03-15 13:49:49,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:49,435 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:49,435 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:49,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-03-15 13:49:49,435 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:49,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:49,436 INFO L85 PathProgramCache]: Analyzing trace with hash 560704432, now seen corresponding path program 34 times [2022-03-15 13:49:49,436 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:49,436 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700395682] [2022-03-15 13:49:49,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:49,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:49,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:49,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:49,548 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:49,548 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700395682] [2022-03-15 13:49:49,548 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700395682] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:49,548 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:49,548 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:49,548 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959800025] [2022-03-15 13:49:49,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:49,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:49,548 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:49,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:49,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:49,549 INFO L87 Difference]: Start difference. First operand 9028 states and 24377 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:50,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:50,126 INFO L93 Difference]: Finished difference Result 11234 states and 30257 transitions. [2022-03-15 13:49:50,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-15 13:49:50,126 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:50,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:50,144 INFO L225 Difference]: With dead ends: 11234 [2022-03-15 13:49:50,144 INFO L226 Difference]: Without dead ends: 10708 [2022-03-15 13:49:50,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=515, Invalid=1465, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 13:49:50,145 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 306 mSDsluCounter, 2749 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 3052 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:50,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [306 Valid, 3052 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:50,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10708 states. [2022-03-15 13:49:50,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10708 to 9024. [2022-03-15 13:49:50,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9024 states, 9023 states have (on average 2.700432228748753) internal successors, (24366), 9023 states have internal predecessors, (24366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:50,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 24366 transitions. [2022-03-15 13:49:50,297 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 24366 transitions. Word has length 109 [2022-03-15 13:49:50,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:50,297 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 24366 transitions. [2022-03-15 13:49:50,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:50,298 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 24366 transitions. [2022-03-15 13:49:50,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:50,310 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:50,310 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:50,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-03-15 13:49:50,310 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:50,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:50,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1638392460, now seen corresponding path program 35 times [2022-03-15 13:49:50,310 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:50,310 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368631730] [2022-03-15 13:49:50,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:50,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:50,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:50,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:50,417 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:50,417 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368631730] [2022-03-15 13:49:50,417 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368631730] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:50,417 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:50,417 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:50,417 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958062] [2022-03-15 13:49:50,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:50,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:50,417 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:50,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:50,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:50,418 INFO L87 Difference]: Start difference. First operand 9024 states and 24366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:50,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:50,965 INFO L93 Difference]: Finished difference Result 11332 states and 30513 transitions. [2022-03-15 13:49:50,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:49:50,966 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:50,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:50,984 INFO L225 Difference]: With dead ends: 11332 [2022-03-15 13:49:50,984 INFO L226 Difference]: Without dead ends: 10804 [2022-03-15 13:49:50,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:49:50,985 INFO L933 BasicCegarLoop]: 355 mSDtfsCounter, 311 mSDsluCounter, 3225 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 3517 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:50,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [311 Valid, 3517 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:51,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10804 states. [2022-03-15 13:49:51,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10804 to 9028. [2022-03-15 13:49:51,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.7000110778774786) internal successors, (24373), 9027 states have internal predecessors, (24373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:51,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24373 transitions. [2022-03-15 13:49:51,129 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24373 transitions. Word has length 109 [2022-03-15 13:49:51,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:51,129 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24373 transitions. [2022-03-15 13:49:51,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:51,129 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24373 transitions. [2022-03-15 13:49:51,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:51,141 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:51,141 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:51,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-03-15 13:49:51,141 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:51,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:51,141 INFO L85 PathProgramCache]: Analyzing trace with hash -869639882, now seen corresponding path program 36 times [2022-03-15 13:49:51,141 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:51,141 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772136813] [2022-03-15 13:49:51,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:51,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:51,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:51,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:51,312 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:51,312 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772136813] [2022-03-15 13:49:51,313 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772136813] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:51,313 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:51,313 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:51,313 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276354423] [2022-03-15 13:49:51,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:51,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:51,313 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:51,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:51,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:51,313 INFO L87 Difference]: Start difference. First operand 9028 states and 24373 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:51,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:51,761 INFO L93 Difference]: Finished difference Result 11168 states and 30083 transitions. [2022-03-15 13:49:51,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:49:51,761 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:51,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:51,775 INFO L225 Difference]: With dead ends: 11168 [2022-03-15 13:49:51,775 INFO L226 Difference]: Without dead ends: 10683 [2022-03-15 13:49:51,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:49:51,776 INFO L933 BasicCegarLoop]: 347 mSDtfsCounter, 249 mSDsluCounter, 3367 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 3656 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:51,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 3656 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:51,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10683 states. [2022-03-15 13:49:51,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10683 to 9032. [2022-03-15 13:49:51,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.699590300077511) internal successors, (24380), 9031 states have internal predecessors, (24380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:51,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24380 transitions. [2022-03-15 13:49:51,896 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24380 transitions. Word has length 109 [2022-03-15 13:49:51,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:51,896 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24380 transitions. [2022-03-15 13:49:51,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:51,896 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24380 transitions. [2022-03-15 13:49:51,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:51,908 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:51,908 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:51,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-03-15 13:49:51,908 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:51,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:51,909 INFO L85 PathProgramCache]: Analyzing trace with hash -188019228, now seen corresponding path program 37 times [2022-03-15 13:49:51,909 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:51,909 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525720539] [2022-03-15 13:49:51,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:51,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:51,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:52,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:52,012 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:52,012 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525720539] [2022-03-15 13:49:52,012 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525720539] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:52,012 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:52,012 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:52,012 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115775867] [2022-03-15 13:49:52,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:52,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:52,013 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:52,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:52,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:52,013 INFO L87 Difference]: Start difference. First operand 9032 states and 24380 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:52,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:52,480 INFO L93 Difference]: Finished difference Result 11102 states and 29906 transitions. [2022-03-15 13:49:52,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:49:52,480 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:52,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:52,497 INFO L225 Difference]: With dead ends: 11102 [2022-03-15 13:49:52,497 INFO L226 Difference]: Without dead ends: 10608 [2022-03-15 13:49:52,498 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=358, Invalid=1124, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:49:52,498 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 233 mSDsluCounter, 3525 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 3813 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:52,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 3813 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:49:52,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10608 states. [2022-03-15 13:49:52,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10608 to 9020. [2022-03-15 13:49:52,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9020 states, 9019 states have (on average 2.7004102450382526) internal successors, (24355), 9019 states have internal predecessors, (24355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:52,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9020 states to 9020 states and 24355 transitions. [2022-03-15 13:49:52,640 INFO L78 Accepts]: Start accepts. Automaton has 9020 states and 24355 transitions. Word has length 109 [2022-03-15 13:49:52,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:52,641 INFO L470 AbstractCegarLoop]: Abstraction has 9020 states and 24355 transitions. [2022-03-15 13:49:52,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:52,641 INFO L276 IsEmpty]: Start isEmpty. Operand 9020 states and 24355 transitions. [2022-03-15 13:49:52,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:52,651 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:52,651 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:52,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-03-15 13:49:52,652 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:52,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:52,652 INFO L85 PathProgramCache]: Analyzing trace with hash 134914624, now seen corresponding path program 38 times [2022-03-15 13:49:52,652 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:52,652 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392438578] [2022-03-15 13:49:52,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:52,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:52,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:52,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:52,757 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:52,757 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392438578] [2022-03-15 13:49:52,757 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392438578] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:52,757 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:52,757 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:52,757 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258677] [2022-03-15 13:49:52,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:52,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:52,757 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:52,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:52,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:52,758 INFO L87 Difference]: Start difference. First operand 9020 states and 24355 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:53,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:53,384 INFO L93 Difference]: Finished difference Result 11353 states and 30552 transitions. [2022-03-15 13:49:53,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-15 13:49:53,385 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:53,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:53,403 INFO L225 Difference]: With dead ends: 11353 [2022-03-15 13:49:53,403 INFO L226 Difference]: Without dead ends: 10782 [2022-03-15 13:49:53,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 700 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=639, Invalid=2117, Unknown=0, NotChecked=0, Total=2756 [2022-03-15 13:49:53,404 INFO L933 BasicCegarLoop]: 362 mSDtfsCounter, 369 mSDsluCounter, 3288 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 3579 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:53,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [369 Valid, 3579 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:49:53,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10782 states. [2022-03-15 13:49:53,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10782 to 9024. [2022-03-15 13:49:53,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9024 states, 9023 states have (on average 2.6999889172115705) internal successors, (24362), 9023 states have internal predecessors, (24362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:53,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 24362 transitions. [2022-03-15 13:49:53,557 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 24362 transitions. Word has length 109 [2022-03-15 13:49:53,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:53,557 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 24362 transitions. [2022-03-15 13:49:53,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:53,557 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 24362 transitions. [2022-03-15 13:49:53,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:53,570 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:53,570 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:53,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-03-15 13:49:53,570 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:53,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:53,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1924477078, now seen corresponding path program 39 times [2022-03-15 13:49:53,571 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:53,571 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309477428] [2022-03-15 13:49:53,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:53,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:53,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:53,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:53,681 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:53,681 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309477428] [2022-03-15 13:49:53,681 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309477428] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:53,681 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:53,681 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:53,681 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918317702] [2022-03-15 13:49:53,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:53,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:53,682 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:53,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:53,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:53,682 INFO L87 Difference]: Start difference. First operand 9024 states and 24362 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:54,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:54,264 INFO L93 Difference]: Finished difference Result 11236 states and 30245 transitions. [2022-03-15 13:49:54,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:49:54,266 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:54,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:54,282 INFO L225 Difference]: With dead ends: 11236 [2022-03-15 13:49:54,283 INFO L226 Difference]: Without dead ends: 10708 [2022-03-15 13:49:54,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=485, Invalid=1677, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 13:49:54,283 INFO L933 BasicCegarLoop]: 355 mSDtfsCounter, 308 mSDsluCounter, 3220 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 3512 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:54,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [308 Valid, 3512 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:49:54,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10708 states. [2022-03-15 13:49:54,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10708 to 9028. [2022-03-15 13:49:54,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.6995679627783318) internal successors, (24369), 9027 states have internal predecessors, (24369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:54,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24369 transitions. [2022-03-15 13:49:54,411 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24369 transitions. Word has length 109 [2022-03-15 13:49:54,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:54,411 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24369 transitions. [2022-03-15 13:49:54,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:54,411 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24369 transitions. [2022-03-15 13:49:54,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:54,423 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:54,423 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:54,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-03-15 13:49:54,423 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:54,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:54,424 INFO L85 PathProgramCache]: Analyzing trace with hash -583555264, now seen corresponding path program 40 times [2022-03-15 13:49:54,424 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:54,424 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079804752] [2022-03-15 13:49:54,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:54,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:54,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:54,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:54,536 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:54,536 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079804752] [2022-03-15 13:49:54,536 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079804752] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:54,536 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:54,536 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:54,536 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848673120] [2022-03-15 13:49:54,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:54,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:54,537 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:54,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:54,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:54,537 INFO L87 Difference]: Start difference. First operand 9028 states and 24369 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:54,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:54,994 INFO L93 Difference]: Finished difference Result 11088 states and 29859 transitions. [2022-03-15 13:49:54,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:49:54,994 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:54,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:55,011 INFO L225 Difference]: With dead ends: 11088 [2022-03-15 13:49:55,011 INFO L226 Difference]: Without dead ends: 10603 [2022-03-15 13:49:55,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=334, Invalid=1072, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:49:55,012 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 247 mSDsluCounter, 3041 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 3332 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:55,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 3332 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:49:55,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10603 states. [2022-03-15 13:49:55,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10603 to 9032. [2022-03-15 13:49:55,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.6991473812423874) internal successors, (24376), 9031 states have internal predecessors, (24376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:55,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24376 transitions. [2022-03-15 13:49:55,147 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24376 transitions. Word has length 109 [2022-03-15 13:49:55,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:55,147 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24376 transitions. [2022-03-15 13:49:55,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:55,147 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24376 transitions. [2022-03-15 13:49:55,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:55,158 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:55,158 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:55,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-03-15 13:49:55,158 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:55,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:55,159 INFO L85 PathProgramCache]: Analyzing trace with hash 98065390, now seen corresponding path program 41 times [2022-03-15 13:49:55,159 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:55,159 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203434001] [2022-03-15 13:49:55,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:55,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:55,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:55,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:55,267 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:55,267 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203434001] [2022-03-15 13:49:55,267 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203434001] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:55,267 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:55,268 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:55,268 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65805466] [2022-03-15 13:49:55,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:55,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:55,268 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:55,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:55,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:55,268 INFO L87 Difference]: Start difference. First operand 9032 states and 24376 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:55,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:55,680 INFO L93 Difference]: Finished difference Result 10990 states and 29594 transitions. [2022-03-15 13:49:55,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:49:55,680 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:55,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:55,696 INFO L225 Difference]: With dead ends: 10990 [2022-03-15 13:49:55,696 INFO L226 Difference]: Without dead ends: 10488 [2022-03-15 13:49:55,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=341, Invalid=1065, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:49:55,697 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 226 mSDsluCounter, 3071 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 3361 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:55,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 3361 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:55,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10488 states. [2022-03-15 13:49:55,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10488 to 9012. [2022-03-15 13:49:55,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9012 states, 9011 states have (on average 2.700810120963267) internal successors, (24337), 9011 states have internal predecessors, (24337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:55,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9012 states to 9012 states and 24337 transitions. [2022-03-15 13:49:55,817 INFO L78 Accepts]: Start accepts. Automaton has 9012 states and 24337 transitions. Word has length 109 [2022-03-15 13:49:55,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:55,817 INFO L470 AbstractCegarLoop]: Abstraction has 9012 states and 24337 transitions. [2022-03-15 13:49:55,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:55,817 INFO L276 IsEmpty]: Start isEmpty. Operand 9012 states and 24337 transitions. [2022-03-15 13:49:55,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:55,827 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:55,827 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:55,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-03-15 13:49:55,827 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:55,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:55,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1814843604, now seen corresponding path program 42 times [2022-03-15 13:49:55,827 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:55,828 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100023420] [2022-03-15 13:49:55,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:55,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:55,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:55,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:55,939 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:55,939 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100023420] [2022-03-15 13:49:55,940 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100023420] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:55,940 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:55,940 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:55,940 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682183327] [2022-03-15 13:49:55,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:55,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:55,940 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:55,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:55,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:55,940 INFO L87 Difference]: Start difference. First operand 9012 states and 24337 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:56,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:56,376 INFO L93 Difference]: Finished difference Result 11024 states and 29695 transitions. [2022-03-15 13:49:56,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:49:56,377 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:56,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:56,392 INFO L225 Difference]: With dead ends: 11024 [2022-03-15 13:49:56,392 INFO L226 Difference]: Without dead ends: 10539 [2022-03-15 13:49:56,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:49:56,393 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 249 mSDsluCounter, 3327 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 3610 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:56,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 3610 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:56,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10539 states. [2022-03-15 13:49:56,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10539 to 9032. [2022-03-15 13:49:56,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.7004761377477577) internal successors, (24388), 9031 states have internal predecessors, (24388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:56,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24388 transitions. [2022-03-15 13:49:56,545 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24388 transitions. Word has length 109 [2022-03-15 13:49:56,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:56,545 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24388 transitions. [2022-03-15 13:49:56,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:56,545 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24388 transitions. [2022-03-15 13:49:56,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:56,557 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:56,557 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:56,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-03-15 13:49:56,558 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:56,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:56,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1133222950, now seen corresponding path program 43 times [2022-03-15 13:49:56,558 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:56,558 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090415177] [2022-03-15 13:49:56,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:56,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:56,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:56,704 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:56,704 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090415177] [2022-03-15 13:49:56,704 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090415177] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:56,704 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:56,704 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:56,704 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432494559] [2022-03-15 13:49:56,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:56,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:56,705 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:56,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:56,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:56,705 INFO L87 Difference]: Start difference. First operand 9032 states and 24388 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:57,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:57,223 INFO L93 Difference]: Finished difference Result 10982 states and 29584 transitions. [2022-03-15 13:49:57,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:49:57,224 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:57,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:57,240 INFO L225 Difference]: With dead ends: 10982 [2022-03-15 13:49:57,240 INFO L226 Difference]: Without dead ends: 10496 [2022-03-15 13:49:57,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=381, Invalid=1179, Unknown=0, NotChecked=0, Total=1560 [2022-03-15 13:49:57,241 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 232 mSDsluCounter, 3517 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 3806 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:57,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 3806 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:49:57,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10496 states. [2022-03-15 13:49:57,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10496 to 9028. [2022-03-15 13:49:57,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.7004541929766255) internal successors, (24377), 9027 states have internal predecessors, (24377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:57,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24377 transitions. [2022-03-15 13:49:57,389 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24377 transitions. Word has length 109 [2022-03-15 13:49:57,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:57,389 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24377 transitions. [2022-03-15 13:49:57,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:57,389 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24377 transitions. [2022-03-15 13:49:57,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:57,400 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:57,401 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:57,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-03-15 13:49:57,401 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:57,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:57,401 INFO L85 PathProgramCache]: Analyzing trace with hash -432535394, now seen corresponding path program 44 times [2022-03-15 13:49:57,401 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:57,401 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079390019] [2022-03-15 13:49:57,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:57,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:57,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:57,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:57,517 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:57,518 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079390019] [2022-03-15 13:49:57,518 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079390019] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:57,518 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:57,518 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:57,518 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857499457] [2022-03-15 13:49:57,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:57,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:57,518 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:57,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:57,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:57,518 INFO L87 Difference]: Start difference. First operand 9028 states and 24377 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:58,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:58,117 INFO L93 Difference]: Finished difference Result 11050 states and 29751 transitions. [2022-03-15 13:49:58,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-15 13:49:58,117 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:58,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:58,133 INFO L225 Difference]: With dead ends: 11050 [2022-03-15 13:49:58,134 INFO L226 Difference]: Without dead ends: 10524 [2022-03-15 13:49:58,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=503, Invalid=1389, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 13:49:58,134 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 300 mSDsluCounter, 3249 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 3543 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:58,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 3543 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:49:58,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10524 states. [2022-03-15 13:49:58,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10524 to 9024. [2022-03-15 13:49:58,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9024 states, 9023 states have (on average 2.700432228748753) internal successors, (24366), 9023 states have internal predecessors, (24366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:58,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 24366 transitions. [2022-03-15 13:49:58,270 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 24366 transitions. Word has length 109 [2022-03-15 13:49:58,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:58,270 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 24366 transitions. [2022-03-15 13:49:58,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:58,270 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 24366 transitions. [2022-03-15 13:49:58,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:58,281 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:58,281 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:58,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-03-15 13:49:58,282 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:58,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:58,282 INFO L85 PathProgramCache]: Analyzing trace with hash 645152634, now seen corresponding path program 45 times [2022-03-15 13:49:58,282 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:58,282 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026361725] [2022-03-15 13:49:58,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:58,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:58,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:58,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:58,398 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:58,398 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026361725] [2022-03-15 13:49:58,398 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026361725] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:58,398 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:58,398 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:58,398 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484874622] [2022-03-15 13:49:58,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:58,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:58,398 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:58,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:58,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:58,399 INFO L87 Difference]: Start difference. First operand 9024 states and 24366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:58,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:58,951 INFO L93 Difference]: Finished difference Result 11180 states and 30095 transitions. [2022-03-15 13:49:58,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:49:58,951 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:58,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:58,968 INFO L225 Difference]: With dead ends: 11180 [2022-03-15 13:49:58,968 INFO L226 Difference]: Without dead ends: 10652 [2022-03-15 13:49:58,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=461, Invalid=1609, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:49:58,968 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 335 mSDsluCounter, 3414 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 3694 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:58,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [335 Valid, 3694 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:49:58,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10652 states. [2022-03-15 13:49:59,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10652 to 9028. [2022-03-15 13:49:59,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.7000110778774786) internal successors, (24373), 9027 states have internal predecessors, (24373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:59,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24373 transitions. [2022-03-15 13:49:59,108 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24373 transitions. Word has length 109 [2022-03-15 13:49:59,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:59,108 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24373 transitions. [2022-03-15 13:49:59,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:59,108 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24373 transitions. [2022-03-15 13:49:59,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:59,119 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:59,119 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:59,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-03-15 13:49:59,120 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:59,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:59,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1862879708, now seen corresponding path program 46 times [2022-03-15 13:49:59,120 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:59,120 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318430278] [2022-03-15 13:49:59,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:59,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:59,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:59,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:59,228 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:59,228 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318430278] [2022-03-15 13:49:59,228 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318430278] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:59,228 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:59,228 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:59,228 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901329590] [2022-03-15 13:49:59,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:59,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:59,229 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:59,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:59,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:59,229 INFO L87 Difference]: Start difference. First operand 9028 states and 24373 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:59,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:59,694 INFO L93 Difference]: Finished difference Result 11016 states and 29665 transitions. [2022-03-15 13:49:59,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:49:59,694 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:49:59,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:59,711 INFO L225 Difference]: With dead ends: 11016 [2022-03-15 13:49:59,711 INFO L226 Difference]: Without dead ends: 10531 [2022-03-15 13:49:59,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=1073, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:49:59,712 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 266 mSDsluCounter, 3320 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 3602 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:59,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [266 Valid, 3602 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:49:59,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10531 states. [2022-03-15 13:49:59,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10531 to 9032. [2022-03-15 13:49:59,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.699590300077511) internal successors, (24380), 9031 states have internal predecessors, (24380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:59,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24380 transitions. [2022-03-15 13:49:59,854 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24380 transitions. Word has length 109 [2022-03-15 13:49:59,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:59,854 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24380 transitions. [2022-03-15 13:49:59,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:49:59,854 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24380 transitions. [2022-03-15 13:49:59,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:49:59,866 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:59,866 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:49:59,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-03-15 13:49:59,866 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:59,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:59,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1181259054, now seen corresponding path program 47 times [2022-03-15 13:49:59,866 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:59,866 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286017710] [2022-03-15 13:49:59,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:59,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:59,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:59,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:49:59,971 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:59,971 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286017710] [2022-03-15 13:49:59,971 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286017710] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:59,971 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:59,971 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:49:59,971 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228282864] [2022-03-15 13:49:59,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:59,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:49:59,971 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:59,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:49:59,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:49:59,972 INFO L87 Difference]: Start difference. First operand 9032 states and 24380 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:00,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:00,432 INFO L93 Difference]: Finished difference Result 10950 states and 29488 transitions. [2022-03-15 13:50:00,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:50:00,432 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:00,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:00,447 INFO L225 Difference]: With dead ends: 10950 [2022-03-15 13:50:00,447 INFO L226 Difference]: Without dead ends: 10456 [2022-03-15 13:50:00,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=362, Invalid=1120, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:50:00,448 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 254 mSDsluCounter, 3248 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 3530 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:00,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 3530 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:00,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10456 states. [2022-03-15 13:50:00,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10456 to 9020. [2022-03-15 13:50:00,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9020 states, 9019 states have (on average 2.7004102450382526) internal successors, (24355), 9019 states have internal predecessors, (24355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:00,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9020 states to 9020 states and 24355 transitions. [2022-03-15 13:50:00,576 INFO L78 Accepts]: Start accepts. Automaton has 9020 states and 24355 transitions. Word has length 109 [2022-03-15 13:50:00,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:00,576 INFO L470 AbstractCegarLoop]: Abstraction has 9020 states and 24355 transitions. [2022-03-15 13:50:00,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:00,577 INFO L276 IsEmpty]: Start isEmpty. Operand 9020 states and 24355 transitions. [2022-03-15 13:50:00,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:00,588 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:00,588 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:00,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-03-15 13:50:00,588 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:00,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:00,588 INFO L85 PathProgramCache]: Analyzing trace with hash -858325202, now seen corresponding path program 48 times [2022-03-15 13:50:00,589 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:00,589 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16555955] [2022-03-15 13:50:00,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:00,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:00,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:00,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:00,693 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:00,694 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16555955] [2022-03-15 13:50:00,694 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16555955] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:00,694 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:00,694 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:00,694 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790751492] [2022-03-15 13:50:00,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:00,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:00,694 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:00,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:00,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:00,694 INFO L87 Difference]: Start difference. First operand 9020 states and 24355 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:01,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:01,356 INFO L93 Difference]: Finished difference Result 11313 states and 30442 transitions. [2022-03-15 13:50:01,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-15 13:50:01,356 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:01,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:01,373 INFO L225 Difference]: With dead ends: 11313 [2022-03-15 13:50:01,373 INFO L226 Difference]: Without dead ends: 10742 [2022-03-15 13:50:01,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 720 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=645, Invalid=2217, Unknown=0, NotChecked=0, Total=2862 [2022-03-15 13:50:01,374 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 400 mSDsluCounter, 3746 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 4019 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:01,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [400 Valid, 4019 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:50:01,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10742 states. [2022-03-15 13:50:01,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10742 to 9024. [2022-03-15 13:50:01,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9024 states, 9023 states have (on average 2.6999889172115705) internal successors, (24362), 9023 states have internal predecessors, (24362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:01,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 24362 transitions. [2022-03-15 13:50:01,508 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 24362 transitions. Word has length 109 [2022-03-15 13:50:01,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:01,508 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 24362 transitions. [2022-03-15 13:50:01,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:01,508 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 24362 transitions. [2022-03-15 13:50:01,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:01,519 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:01,519 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:01,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-03-15 13:50:01,520 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:01,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:01,520 INFO L85 PathProgramCache]: Analyzing trace with hash 931237252, now seen corresponding path program 49 times [2022-03-15 13:50:01,520 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:01,520 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531039445] [2022-03-15 13:50:01,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:01,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:01,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:01,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:01,623 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:01,624 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531039445] [2022-03-15 13:50:01,624 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531039445] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:01,624 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:01,624 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:01,624 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897259900] [2022-03-15 13:50:01,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:01,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:01,624 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:01,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:01,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:01,624 INFO L87 Difference]: Start difference. First operand 9024 states and 24362 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:02,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:02,189 INFO L93 Difference]: Finished difference Result 11188 states and 30113 transitions. [2022-03-15 13:50:02,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:50:02,190 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:02,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:02,205 INFO L225 Difference]: With dead ends: 11188 [2022-03-15 13:50:02,206 INFO L226 Difference]: Without dead ends: 10660 [2022-03-15 13:50:02,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=474, Invalid=1688, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 13:50:02,206 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 334 mSDsluCounter, 3655 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 3930 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:02,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [334 Valid, 3930 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:50:02,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10660 states. [2022-03-15 13:50:02,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10660 to 9028. [2022-03-15 13:50:02,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.6995679627783318) internal successors, (24369), 9027 states have internal predecessors, (24369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:02,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24369 transitions. [2022-03-15 13:50:02,396 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24369 transitions. Word has length 109 [2022-03-15 13:50:02,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:02,396 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24369 transitions. [2022-03-15 13:50:02,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:02,396 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24369 transitions. [2022-03-15 13:50:02,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:02,407 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:02,407 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:02,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-03-15 13:50:02,407 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:02,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:02,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1576795090, now seen corresponding path program 50 times [2022-03-15 13:50:02,408 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:02,408 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775520069] [2022-03-15 13:50:02,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:02,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:02,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:02,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:02,518 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:02,518 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775520069] [2022-03-15 13:50:02,518 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775520069] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:02,518 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:02,518 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:02,518 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150608574] [2022-03-15 13:50:02,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:02,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:02,519 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:02,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:02,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:02,519 INFO L87 Difference]: Start difference. First operand 9028 states and 24369 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:02,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:02,944 INFO L93 Difference]: Finished difference Result 11024 states and 29683 transitions. [2022-03-15 13:50:02,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:50:02,944 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:02,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:02,960 INFO L225 Difference]: With dead ends: 11024 [2022-03-15 13:50:02,960 INFO L226 Difference]: Without dead ends: 10539 [2022-03-15 13:50:02,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=328, Invalid=1078, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:50:02,961 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 267 mSDsluCounter, 2708 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 2998 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:02,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 2998 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:02,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10539 states. [2022-03-15 13:50:03,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10539 to 9032. [2022-03-15 13:50:03,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.6991473812423874) internal successors, (24376), 9031 states have internal predecessors, (24376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:03,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24376 transitions. [2022-03-15 13:50:03,092 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24376 transitions. Word has length 109 [2022-03-15 13:50:03,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:03,092 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24376 transitions. [2022-03-15 13:50:03,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:03,093 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24376 transitions. [2022-03-15 13:50:03,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:03,103 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:03,103 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:03,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-03-15 13:50:03,103 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:03,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:03,104 INFO L85 PathProgramCache]: Analyzing trace with hash -895174436, now seen corresponding path program 51 times [2022-03-15 13:50:03,104 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:03,104 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366478192] [2022-03-15 13:50:03,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:03,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:03,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:03,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:03,219 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:03,219 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366478192] [2022-03-15 13:50:03,219 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366478192] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:03,219 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:03,219 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:03,219 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539782325] [2022-03-15 13:50:03,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:03,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:03,219 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:03,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:03,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:03,220 INFO L87 Difference]: Start difference. First operand 9032 states and 24376 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:03,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:03,645 INFO L93 Difference]: Finished difference Result 10950 states and 29484 transitions. [2022-03-15 13:50:03,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:50:03,645 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:03,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:03,662 INFO L225 Difference]: With dead ends: 10950 [2022-03-15 13:50:03,662 INFO L226 Difference]: Without dead ends: 10452 [2022-03-15 13:50:03,662 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=345, Invalid=1061, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:50:03,662 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 253 mSDsluCounter, 3453 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 3728 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:03,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 3728 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:03,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10452 states. [2022-03-15 13:50:03,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10452 to 9016. [2022-03-15 13:50:03,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9016 states, 9015 states have (on average 2.7003882418191902) internal successors, (24344), 9015 states have internal predecessors, (24344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:03,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9016 states to 9016 states and 24344 transitions. [2022-03-15 13:50:03,807 INFO L78 Accepts]: Start accepts. Automaton has 9016 states and 24344 transitions. Word has length 109 [2022-03-15 13:50:03,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:03,807 INFO L470 AbstractCegarLoop]: Abstraction has 9016 states and 24344 transitions. [2022-03-15 13:50:03,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:03,807 INFO L276 IsEmpty]: Start isEmpty. Operand 9016 states and 24344 transitions. [2022-03-15 13:50:03,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:03,817 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:03,817 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:03,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-03-15 13:50:03,818 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:03,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:03,818 INFO L85 PathProgramCache]: Analyzing trace with hash -220682792, now seen corresponding path program 52 times [2022-03-15 13:50:03,818 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:03,818 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927217703] [2022-03-15 13:50:03,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:03,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:03,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:03,944 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:03,944 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927217703] [2022-03-15 13:50:03,944 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927217703] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:03,944 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:03,944 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:03,945 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243265674] [2022-03-15 13:50:03,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:03,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:03,945 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:03,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:03,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:03,945 INFO L87 Difference]: Start difference. First operand 9016 states and 24344 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:04,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:04,781 INFO L93 Difference]: Finished difference Result 11293 states and 30362 transitions. [2022-03-15 13:50:04,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-15 13:50:04,781 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:04,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:04,799 INFO L225 Difference]: With dead ends: 11293 [2022-03-15 13:50:04,799 INFO L226 Difference]: Without dead ends: 10679 [2022-03-15 13:50:04,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1020 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=844, Invalid=2696, Unknown=0, NotChecked=0, Total=3540 [2022-03-15 13:50:04,800 INFO L933 BasicCegarLoop]: 363 mSDtfsCounter, 485 mSDsluCounter, 3146 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 3435 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:04,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [485 Valid, 3435 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:04,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10679 states. [2022-03-15 13:50:04,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10679 to 9020. [2022-03-15 13:50:04,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9020 states, 9019 states have (on average 2.6999667368887903) internal successors, (24351), 9019 states have internal predecessors, (24351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:04,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9020 states to 9020 states and 24351 transitions. [2022-03-15 13:50:04,941 INFO L78 Accepts]: Start accepts. Automaton has 9020 states and 24351 transitions. Word has length 109 [2022-03-15 13:50:04,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:04,941 INFO L470 AbstractCegarLoop]: Abstraction has 9020 states and 24351 transitions. [2022-03-15 13:50:04,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:04,941 INFO L276 IsEmpty]: Start isEmpty. Operand 9020 states and 24351 transitions. [2022-03-15 13:50:04,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:04,952 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:04,952 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:04,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-03-15 13:50:04,952 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:04,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:04,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1277978946, now seen corresponding path program 53 times [2022-03-15 13:50:04,953 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:04,953 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414488565] [2022-03-15 13:50:04,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:04,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:04,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:05,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:05,064 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:05,064 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414488565] [2022-03-15 13:50:05,064 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414488565] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:05,064 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:05,064 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:05,064 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714451619] [2022-03-15 13:50:05,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:05,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:05,064 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:05,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:05,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:05,064 INFO L87 Difference]: Start difference. First operand 9020 states and 24351 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:05,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:05,720 INFO L93 Difference]: Finished difference Result 11153 states and 29998 transitions. [2022-03-15 13:50:05,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-15 13:50:05,720 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:05,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:05,735 INFO L225 Difference]: With dead ends: 11153 [2022-03-15 13:50:05,736 INFO L226 Difference]: Without dead ends: 10582 [2022-03-15 13:50:05,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 762 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=652, Invalid=2318, Unknown=0, NotChecked=0, Total=2970 [2022-03-15 13:50:05,736 INFO L933 BasicCegarLoop]: 351 mSDtfsCounter, 413 mSDsluCounter, 3707 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 3975 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:05,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 3975 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:50:05,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10582 states. [2022-03-15 13:50:05,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10582 to 9024. [2022-03-15 13:50:05,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9024 states, 9023 states have (on average 2.6995456056743876) internal successors, (24358), 9023 states have internal predecessors, (24358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:05,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 24358 transitions. [2022-03-15 13:50:05,861 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 24358 transitions. Word has length 109 [2022-03-15 13:50:05,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:05,861 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 24358 transitions. [2022-03-15 13:50:05,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:05,861 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 24358 transitions. [2022-03-15 13:50:05,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:05,871 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:05,871 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:05,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-03-15 13:50:05,871 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:05,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:05,872 INFO L85 PathProgramCache]: Analyzing trace with hash 511583508, now seen corresponding path program 54 times [2022-03-15 13:50:05,872 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:05,872 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227840109] [2022-03-15 13:50:05,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:05,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:05,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:05,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:05,981 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:05,981 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227840109] [2022-03-15 13:50:05,981 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227840109] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:05,981 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:05,981 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:05,981 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745260451] [2022-03-15 13:50:05,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:05,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:05,981 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:05,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:05,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:05,982 INFO L87 Difference]: Start difference. First operand 9024 states and 24358 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:06,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:06,574 INFO L93 Difference]: Finished difference Result 11040 states and 29702 transitions. [2022-03-15 13:50:06,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:50:06,575 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:06,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:06,591 INFO L225 Difference]: With dead ends: 11040 [2022-03-15 13:50:06,591 INFO L226 Difference]: Without dead ends: 10512 [2022-03-15 13:50:06,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=464, Invalid=1698, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 13:50:06,592 INFO L933 BasicCegarLoop]: 339 mSDtfsCounter, 351 mSDsluCounter, 3595 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 3861 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:06,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 3861 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:50:06,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10512 states. [2022-03-15 13:50:06,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10512 to 9028. [2022-03-15 13:50:06,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.6991248476791845) internal successors, (24365), 9027 states have internal predecessors, (24365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:06,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24365 transitions. [2022-03-15 13:50:06,731 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24365 transitions. Word has length 109 [2022-03-15 13:50:06,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:06,731 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24365 transitions. [2022-03-15 13:50:06,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:06,731 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24365 transitions. [2022-03-15 13:50:06,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:06,743 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:06,743 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:06,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-03-15 13:50:06,743 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:06,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:06,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1996448834, now seen corresponding path program 55 times [2022-03-15 13:50:06,743 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:06,743 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959927608] [2022-03-15 13:50:06,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:06,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:06,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:06,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:06,862 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:06,862 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959927608] [2022-03-15 13:50:06,862 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959927608] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:06,862 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:06,862 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:06,862 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641648187] [2022-03-15 13:50:06,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:06,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:06,862 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:06,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:06,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:06,863 INFO L87 Difference]: Start difference. First operand 9028 states and 24365 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:07,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:07,328 INFO L93 Difference]: Finished difference Result 10900 states and 29338 transitions. [2022-03-15 13:50:07,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:50:07,328 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:07,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:07,344 INFO L225 Difference]: With dead ends: 10900 [2022-03-15 13:50:07,344 INFO L226 Difference]: Without dead ends: 10415 [2022-03-15 13:50:07,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=323, Invalid=1083, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:50:07,347 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 290 mSDsluCounter, 2889 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 3166 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:07,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 3166 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:07,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10415 states. [2022-03-15 13:50:07,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10415 to 9032. [2022-03-15 13:50:07,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.698704462407264) internal successors, (24372), 9031 states have internal predecessors, (24372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:07,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24372 transitions. [2022-03-15 13:50:07,487 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24372 transitions. Word has length 109 [2022-03-15 13:50:07,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:07,487 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24372 transitions. [2022-03-15 13:50:07,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:07,487 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24372 transitions. [2022-03-15 13:50:07,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:07,497 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:07,497 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:07,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-03-15 13:50:07,498 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:07,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:07,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1314828180, now seen corresponding path program 56 times [2022-03-15 13:50:07,498 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:07,498 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967351803] [2022-03-15 13:50:07,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:07,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:07,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:07,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:07,604 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:07,604 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967351803] [2022-03-15 13:50:07,604 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967351803] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:07,604 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:07,604 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:07,604 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200189044] [2022-03-15 13:50:07,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:07,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:07,605 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:07,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:07,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:07,605 INFO L87 Difference]: Start difference. First operand 9032 states and 24372 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:08,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:08,012 INFO L93 Difference]: Finished difference Result 10750 states and 28930 transitions. [2022-03-15 13:50:08,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-15 13:50:08,012 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:08,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:08,027 INFO L225 Difference]: With dead ends: 10750 [2022-03-15 13:50:08,027 INFO L226 Difference]: Without dead ends: 10218 [2022-03-15 13:50:08,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=330, Invalid=1002, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:50:08,028 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 247 mSDsluCounter, 3165 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 3434 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:08,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 3434 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:08,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10218 states. [2022-03-15 13:50:08,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10218 to 8982. [2022-03-15 13:50:08,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8982 states, 8981 states have (on average 2.701592250306202) internal successors, (24263), 8981 states have internal predecessors, (24263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:08,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8982 states to 8982 states and 24263 transitions. [2022-03-15 13:50:08,192 INFO L78 Accepts]: Start accepts. Automaton has 8982 states and 24263 transitions. Word has length 109 [2022-03-15 13:50:08,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:08,193 INFO L470 AbstractCegarLoop]: Abstraction has 8982 states and 24263 transitions. [2022-03-15 13:50:08,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:08,193 INFO L276 IsEmpty]: Start isEmpty. Operand 8982 states and 24263 transitions. [2022-03-15 13:50:08,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:08,204 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:08,204 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:08,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-03-15 13:50:08,204 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:08,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:08,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1562377566, now seen corresponding path program 57 times [2022-03-15 13:50:08,205 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:08,205 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045250552] [2022-03-15 13:50:08,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:08,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:08,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:08,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:08,316 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:08,316 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045250552] [2022-03-15 13:50:08,317 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045250552] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:08,317 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:08,317 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:08,317 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757241536] [2022-03-15 13:50:08,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:08,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:08,317 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:08,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:08,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:08,317 INFO L87 Difference]: Start difference. First operand 8982 states and 24263 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:08,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:08,721 INFO L93 Difference]: Finished difference Result 11458 states and 30897 transitions. [2022-03-15 13:50:08,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:50:08,721 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:08,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:08,736 INFO L225 Difference]: With dead ends: 11458 [2022-03-15 13:50:08,736 INFO L226 Difference]: Without dead ends: 10973 [2022-03-15 13:50:08,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=296, Invalid=894, Unknown=0, NotChecked=0, Total=1190 [2022-03-15 13:50:08,737 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 216 mSDsluCounter, 2301 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 2564 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:08,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 2564 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:08,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10973 states. [2022-03-15 13:50:08,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10973 to 9010. [2022-03-15 13:50:08,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.7012987012987013) internal successors, (24336), 9009 states have internal predecessors, (24336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:08,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24336 transitions. [2022-03-15 13:50:08,865 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24336 transitions. Word has length 109 [2022-03-15 13:50:08,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:08,865 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24336 transitions. [2022-03-15 13:50:08,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:08,865 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24336 transitions. [2022-03-15 13:50:08,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:08,876 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:08,877 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:08,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-03-15 13:50:08,877 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:08,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:08,877 INFO L85 PathProgramCache]: Analyzing trace with hash -880756912, now seen corresponding path program 58 times [2022-03-15 13:50:08,877 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:08,877 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500024374] [2022-03-15 13:50:08,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:08,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:08,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:08,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:08,980 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:08,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500024374] [2022-03-15 13:50:08,980 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500024374] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:08,980 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:08,980 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:08,980 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765430698] [2022-03-15 13:50:08,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:08,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:08,980 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:08,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:08,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:08,981 INFO L87 Difference]: Start difference. First operand 9010 states and 24336 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:09,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:09,426 INFO L93 Difference]: Finished difference Result 11424 states and 30808 transitions. [2022-03-15 13:50:09,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:50:09,426 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:09,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:09,443 INFO L225 Difference]: With dead ends: 11424 [2022-03-15 13:50:09,443 INFO L226 Difference]: Without dead ends: 10938 [2022-03-15 13:50:09,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=1149, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:50:09,443 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 207 mSDsluCounter, 2827 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 3090 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:09,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 3090 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:09,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10938 states. [2022-03-15 13:50:09,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10938 to 9006. [2022-03-15 13:50:09,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.7012770682953913) internal successors, (24325), 9005 states have internal predecessors, (24325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:09,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24325 transitions. [2022-03-15 13:50:09,577 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24325 transitions. Word has length 109 [2022-03-15 13:50:09,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:09,577 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24325 transitions. [2022-03-15 13:50:09,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:09,577 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24325 transitions. [2022-03-15 13:50:09,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:09,589 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:09,589 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:09,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-03-15 13:50:09,589 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:09,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:09,590 INFO L85 PathProgramCache]: Analyzing trace with hash -180069356, now seen corresponding path program 59 times [2022-03-15 13:50:09,590 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:09,590 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117946323] [2022-03-15 13:50:09,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:09,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:09,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:09,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:09,706 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:09,706 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117946323] [2022-03-15 13:50:09,706 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117946323] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:09,706 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:09,706 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:09,706 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670886648] [2022-03-15 13:50:09,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:09,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:09,707 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:09,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:09,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:09,707 INFO L87 Difference]: Start difference. First operand 9006 states and 24325 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:10,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:10,284 INFO L93 Difference]: Finished difference Result 11460 states and 30903 transitions. [2022-03-15 13:50:10,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:50:10,284 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:10,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:10,302 INFO L225 Difference]: With dead ends: 11460 [2022-03-15 13:50:10,302 INFO L226 Difference]: Without dead ends: 10934 [2022-03-15 13:50:10,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=490, Invalid=1580, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:50:10,303 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 263 mSDsluCounter, 2365 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 2643 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:10,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 2643 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:10,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10934 states. [2022-03-15 13:50:10,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10934 to 9002. [2022-03-15 13:50:10,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.701255416064882) internal successors, (24314), 9001 states have internal predecessors, (24314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:10,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24314 transitions. [2022-03-15 13:50:10,452 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24314 transitions. Word has length 109 [2022-03-15 13:50:10,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:10,452 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24314 transitions. [2022-03-15 13:50:10,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:10,452 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24314 transitions. [2022-03-15 13:50:10,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:10,465 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:10,465 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:10,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-03-15 13:50:10,465 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:10,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:10,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1970821476, now seen corresponding path program 60 times [2022-03-15 13:50:10,465 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:10,465 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854620410] [2022-03-15 13:50:10,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:10,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:10,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:10,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:10,587 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:10,587 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854620410] [2022-03-15 13:50:10,587 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854620410] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:10,587 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:10,588 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:10,588 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202928398] [2022-03-15 13:50:10,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:10,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:10,588 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:10,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:10,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:10,588 INFO L87 Difference]: Start difference. First operand 9002 states and 24314 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:11,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:11,277 INFO L93 Difference]: Finished difference Result 11632 states and 31348 transitions. [2022-03-15 13:50:11,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-15 13:50:11,277 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:11,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:11,296 INFO L225 Difference]: With dead ends: 11632 [2022-03-15 13:50:11,296 INFO L226 Difference]: Without dead ends: 11066 [2022-03-15 13:50:11,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 702 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=658, Invalid=1994, Unknown=0, NotChecked=0, Total=2652 [2022-03-15 13:50:11,297 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 324 mSDsluCounter, 2566 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 2844 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:11,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [324 Valid, 2844 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:11,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11066 states. [2022-03-15 13:50:11,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11066 to 8998. [2022-03-15 13:50:11,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8998 states, 8997 states have (on average 2.7012337445815273) internal successors, (24303), 8997 states have internal predecessors, (24303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:11,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24303 transitions. [2022-03-15 13:50:11,438 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24303 transitions. Word has length 109 [2022-03-15 13:50:11,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:11,438 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24303 transitions. [2022-03-15 13:50:11,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:11,438 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24303 transitions. [2022-03-15 13:50:11,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:11,449 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:11,449 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:11,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-03-15 13:50:11,450 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:11,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:11,450 INFO L85 PathProgramCache]: Analyzing trace with hash -531733336, now seen corresponding path program 61 times [2022-03-15 13:50:11,450 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:11,450 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497389857] [2022-03-15 13:50:11,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:11,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:11,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:11,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:11,559 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:11,559 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497389857] [2022-03-15 13:50:11,559 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497389857] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:11,559 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:11,559 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:11,560 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45376157] [2022-03-15 13:50:11,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:11,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:11,560 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:11,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:11,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:11,560 INFO L87 Difference]: Start difference. First operand 8998 states and 24303 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:12,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:12,007 INFO L93 Difference]: Finished difference Result 11534 states and 31102 transitions. [2022-03-15 13:50:12,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:50:12,007 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:12,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:12,024 INFO L225 Difference]: With dead ends: 11534 [2022-03-15 13:50:12,024 INFO L226 Difference]: Without dead ends: 11049 [2022-03-15 13:50:12,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=312, Invalid=948, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:50:12,024 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 219 mSDsluCounter, 2836 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 3092 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:12,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 3092 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:12,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11049 states. [2022-03-15 13:50:12,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11049 to 9010. [2022-03-15 13:50:12,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.700854700854701) internal successors, (24332), 9009 states have internal predecessors, (24332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:12,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24332 transitions. [2022-03-15 13:50:12,165 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24332 transitions. Word has length 109 [2022-03-15 13:50:12,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:12,166 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24332 transitions. [2022-03-15 13:50:12,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:12,166 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24332 transitions. [2022-03-15 13:50:12,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:12,178 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:12,178 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:12,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-03-15 13:50:12,178 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:12,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:12,178 INFO L85 PathProgramCache]: Analyzing trace with hash 149887318, now seen corresponding path program 62 times [2022-03-15 13:50:12,178 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:12,178 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139055559] [2022-03-15 13:50:12,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:12,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:12,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:12,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:12,293 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:12,293 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139055559] [2022-03-15 13:50:12,293 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139055559] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:12,293 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:12,293 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:12,293 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124906359] [2022-03-15 13:50:12,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:12,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:12,293 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:12,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:12,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:12,294 INFO L87 Difference]: Start difference. First operand 9010 states and 24332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:12,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:12,763 INFO L93 Difference]: Finished difference Result 11492 states and 30991 transitions. [2022-03-15 13:50:12,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:50:12,764 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:12,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:12,780 INFO L225 Difference]: With dead ends: 11492 [2022-03-15 13:50:12,780 INFO L226 Difference]: Without dead ends: 11006 [2022-03-15 13:50:12,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=338, Invalid=1144, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:50:12,781 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 200 mSDsluCounter, 3166 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 3425 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:12,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 3425 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:50:12,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11006 states. [2022-03-15 13:50:12,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11006 to 9006. [2022-03-15 13:50:12,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.7008328706274294) internal successors, (24321), 9005 states have internal predecessors, (24321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:12,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24321 transitions. [2022-03-15 13:50:12,900 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24321 transitions. Word has length 109 [2022-03-15 13:50:12,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:12,900 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24321 transitions. [2022-03-15 13:50:12,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:12,900 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24321 transitions. [2022-03-15 13:50:12,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:12,910 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:12,910 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:12,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-03-15 13:50:12,910 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:12,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:12,911 INFO L85 PathProgramCache]: Analyzing trace with hash 850574874, now seen corresponding path program 63 times [2022-03-15 13:50:12,911 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:12,911 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105473079] [2022-03-15 13:50:12,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:12,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:12,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:13,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:13,023 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:13,024 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105473079] [2022-03-15 13:50:13,024 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105473079] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:13,024 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:13,024 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:13,024 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17667163] [2022-03-15 13:50:13,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:13,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:13,024 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:13,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:13,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:13,024 INFO L87 Difference]: Start difference. First operand 9006 states and 24321 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:13,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:13,707 INFO L93 Difference]: Finished difference Result 11620 states and 31323 transitions. [2022-03-15 13:50:13,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:50:13,708 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:13,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:13,722 INFO L225 Difference]: With dead ends: 11620 [2022-03-15 13:50:13,722 INFO L226 Difference]: Without dead ends: 11094 [2022-03-15 13:50:13,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=478, Invalid=1502, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 13:50:13,722 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 269 mSDsluCounter, 2693 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 2964 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:13,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 2964 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:13,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11094 states. [2022-03-15 13:50:13,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11094 to 9002. [2022-03-15 13:50:13,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700811020997667) internal successors, (24310), 9001 states have internal predecessors, (24310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:13,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24310 transitions. [2022-03-15 13:50:13,841 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24310 transitions. Word has length 109 [2022-03-15 13:50:13,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:13,841 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24310 transitions. [2022-03-15 13:50:13,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:13,841 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24310 transitions. [2022-03-15 13:50:13,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:13,850 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:13,851 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:13,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-03-15 13:50:13,851 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:13,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:13,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1928262902, now seen corresponding path program 64 times [2022-03-15 13:50:13,851 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:13,851 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034925107] [2022-03-15 13:50:13,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:13,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:13,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:13,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:13,958 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:13,958 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034925107] [2022-03-15 13:50:13,958 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034925107] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:13,959 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:13,959 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:13,959 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236849383] [2022-03-15 13:50:13,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:13,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:13,959 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:13,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:13,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:13,959 INFO L87 Difference]: Start difference. First operand 9002 states and 24310 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:14,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:14,494 INFO L93 Difference]: Finished difference Result 11622 states and 31315 transitions. [2022-03-15 13:50:14,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-15 13:50:14,495 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:14,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:14,514 INFO L225 Difference]: With dead ends: 11622 [2022-03-15 13:50:14,514 INFO L226 Difference]: Without dead ends: 11094 [2022-03-15 13:50:14,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=452, Invalid=1440, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 13:50:14,514 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 271 mSDsluCounter, 3308 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 3555 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:14,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [271 Valid, 3555 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:50:14,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11094 states. [2022-03-15 13:50:14,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11094 to 9006. [2022-03-15 13:50:14,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.700388672959467) internal successors, (24317), 9005 states have internal predecessors, (24317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:14,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24317 transitions. [2022-03-15 13:50:14,664 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24317 transitions. Word has length 109 [2022-03-15 13:50:14,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:14,664 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24317 transitions. [2022-03-15 13:50:14,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:14,664 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24317 transitions. [2022-03-15 13:50:14,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:14,675 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:14,675 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:14,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-03-15 13:50:14,675 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:14,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:14,675 INFO L85 PathProgramCache]: Analyzing trace with hash -579769440, now seen corresponding path program 65 times [2022-03-15 13:50:14,675 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:14,675 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076297519] [2022-03-15 13:50:14,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:14,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:14,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:14,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:14,786 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:14,786 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076297519] [2022-03-15 13:50:14,786 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076297519] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:14,786 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:14,786 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:14,786 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448974575] [2022-03-15 13:50:14,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:14,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:14,787 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:14,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:14,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:14,787 INFO L87 Difference]: Start difference. First operand 9006 states and 24317 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:15,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:15,258 INFO L93 Difference]: Finished difference Result 11474 states and 30929 transitions. [2022-03-15 13:50:15,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:50:15,259 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:15,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:15,275 INFO L225 Difference]: With dead ends: 11474 [2022-03-15 13:50:15,275 INFO L226 Difference]: Without dead ends: 10989 [2022-03-15 13:50:15,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=330, Invalid=1002, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:50:15,275 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 220 mSDsluCounter, 2846 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 3105 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:15,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 3105 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:15,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10989 states. [2022-03-15 13:50:15,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10989 to 9010. [2022-03-15 13:50:15,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.6999666999667) internal successors, (24324), 9009 states have internal predecessors, (24324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:15,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24324 transitions. [2022-03-15 13:50:15,410 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24324 transitions. Word has length 109 [2022-03-15 13:50:15,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:15,410 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24324 transitions. [2022-03-15 13:50:15,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:15,410 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24324 transitions. [2022-03-15 13:50:15,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:15,421 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:15,421 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:15,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-03-15 13:50:15,421 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:15,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:15,421 INFO L85 PathProgramCache]: Analyzing trace with hash 101851214, now seen corresponding path program 66 times [2022-03-15 13:50:15,421 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:15,421 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590326156] [2022-03-15 13:50:15,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:15,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:15,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:15,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:15,525 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:15,525 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590326156] [2022-03-15 13:50:15,525 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590326156] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:15,525 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:15,525 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:15,525 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764714331] [2022-03-15 13:50:15,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:15,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:15,526 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:15,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:15,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:15,526 INFO L87 Difference]: Start difference. First operand 9010 states and 24324 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:15,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:15,963 INFO L93 Difference]: Finished difference Result 11392 states and 30708 transitions. [2022-03-15 13:50:15,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:50:15,963 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:15,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:15,979 INFO L225 Difference]: With dead ends: 11392 [2022-03-15 13:50:15,979 INFO L226 Difference]: Without dead ends: 10894 [2022-03-15 13:50:15,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=320, Invalid=1086, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:50:15,980 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 198 mSDsluCounter, 2979 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 3238 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:15,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 3238 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:15,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10894 states. [2022-03-15 13:50:16,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10894 to 8994. [2022-03-15 13:50:16,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8994 states, 8993 states have (on average 2.7012120538196376) internal successors, (24292), 8993 states have internal predecessors, (24292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:16,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8994 states to 8994 states and 24292 transitions. [2022-03-15 13:50:16,100 INFO L78 Accepts]: Start accepts. Automaton has 8994 states and 24292 transitions. Word has length 109 [2022-03-15 13:50:16,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:16,100 INFO L470 AbstractCegarLoop]: Abstraction has 8994 states and 24292 transitions. [2022-03-15 13:50:16,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:16,100 INFO L276 IsEmpty]: Start isEmpty. Operand 8994 states and 24292 transitions. [2022-03-15 13:50:16,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:16,110 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:16,110 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:16,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-03-15 13:50:16,111 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:16,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:16,111 INFO L85 PathProgramCache]: Analyzing trace with hash 550210976, now seen corresponding path program 67 times [2022-03-15 13:50:16,111 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:16,111 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230390822] [2022-03-15 13:50:16,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:16,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:16,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:16,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:16,217 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:16,218 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230390822] [2022-03-15 13:50:16,218 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230390822] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:16,218 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:16,218 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:16,218 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713220655] [2022-03-15 13:50:16,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:16,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:16,218 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:16,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:16,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:16,218 INFO L87 Difference]: Start difference. First operand 8994 states and 24292 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:16,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:16,660 INFO L93 Difference]: Finished difference Result 11410 states and 30761 transitions. [2022-03-15 13:50:16,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:50:16,660 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:16,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:16,676 INFO L225 Difference]: With dead ends: 11410 [2022-03-15 13:50:16,676 INFO L226 Difference]: Without dead ends: 10925 [2022-03-15 13:50:16,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=307, Invalid=953, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:50:16,676 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 208 mSDsluCounter, 2747 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 3003 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:16,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 3003 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:16,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10925 states. [2022-03-15 13:50:16,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10925 to 9010. [2022-03-15 13:50:16,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.700854700854701) internal successors, (24332), 9009 states have internal predecessors, (24332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:16,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24332 transitions. [2022-03-15 13:50:16,801 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24332 transitions. Word has length 109 [2022-03-15 13:50:16,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:16,801 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24332 transitions. [2022-03-15 13:50:16,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:16,801 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24332 transitions. [2022-03-15 13:50:16,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:16,811 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:16,811 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:16,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-03-15 13:50:16,811 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:16,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:16,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1231831630, now seen corresponding path program 68 times [2022-03-15 13:50:16,812 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:16,812 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014143134] [2022-03-15 13:50:16,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:16,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:16,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:16,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:16,941 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:16,941 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014143134] [2022-03-15 13:50:16,941 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014143134] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:16,941 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:16,941 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:16,941 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435885613] [2022-03-15 13:50:16,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:16,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:16,942 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:16,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:16,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:16,942 INFO L87 Difference]: Start difference. First operand 9010 states and 24332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:17,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:17,401 INFO L93 Difference]: Finished difference Result 11368 states and 30650 transitions. [2022-03-15 13:50:17,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:50:17,401 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:17,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:17,417 INFO L225 Difference]: With dead ends: 11368 [2022-03-15 13:50:17,417 INFO L226 Difference]: Without dead ends: 10882 [2022-03-15 13:50:17,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=343, Invalid=1139, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:50:17,417 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 196 mSDsluCounter, 3158 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 3416 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:17,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 3416 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:50:17,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10882 states. [2022-03-15 13:50:17,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10882 to 9006. [2022-03-15 13:50:17,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.7008328706274294) internal successors, (24321), 9005 states have internal predecessors, (24321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:17,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24321 transitions. [2022-03-15 13:50:17,544 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24321 transitions. Word has length 109 [2022-03-15 13:50:17,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:17,544 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24321 transitions. [2022-03-15 13:50:17,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:17,544 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24321 transitions. [2022-03-15 13:50:17,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:17,556 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:17,556 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:17,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-03-15 13:50:17,556 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:17,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:17,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1932519186, now seen corresponding path program 69 times [2022-03-15 13:50:17,557 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:17,557 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514874357] [2022-03-15 13:50:17,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:17,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:17,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:17,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:17,666 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:17,666 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514874357] [2022-03-15 13:50:17,666 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514874357] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:17,666 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:17,666 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:17,666 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496606217] [2022-03-15 13:50:17,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:17,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:17,666 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:17,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:17,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:17,667 INFO L87 Difference]: Start difference. First operand 9006 states and 24321 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:18,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:18,224 INFO L93 Difference]: Finished difference Result 11496 states and 30982 transitions. [2022-03-15 13:50:18,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-15 13:50:18,224 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:18,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:18,241 INFO L225 Difference]: With dead ends: 11496 [2022-03-15 13:50:18,242 INFO L226 Difference]: Without dead ends: 10970 [2022-03-15 13:50:18,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=467, Invalid=1425, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 13:50:18,242 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 265 mSDsluCounter, 2516 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 2788 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:18,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [265 Valid, 2788 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:18,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10970 states. [2022-03-15 13:50:18,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10970 to 9002. [2022-03-15 13:50:18,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700811020997667) internal successors, (24310), 9001 states have internal predecessors, (24310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:18,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24310 transitions. [2022-03-15 13:50:18,390 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24310 transitions. Word has length 109 [2022-03-15 13:50:18,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:18,390 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24310 transitions. [2022-03-15 13:50:18,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:18,391 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24310 transitions. [2022-03-15 13:50:18,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:18,403 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:18,403 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:18,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-03-15 13:50:18,403 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:18,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:18,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1284760082, now seen corresponding path program 70 times [2022-03-15 13:50:18,404 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:18,404 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118949589] [2022-03-15 13:50:18,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:18,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:18,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:18,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:18,522 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:18,522 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118949589] [2022-03-15 13:50:18,522 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118949589] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:18,522 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:18,522 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:18,523 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116954405] [2022-03-15 13:50:18,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:18,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:18,523 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:18,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:18,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:18,523 INFO L87 Difference]: Start difference. First operand 9002 states and 24310 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:19,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:19,131 INFO L93 Difference]: Finished difference Result 11578 states and 31194 transitions. [2022-03-15 13:50:19,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:50:19,132 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:19,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:19,147 INFO L225 Difference]: With dead ends: 11578 [2022-03-15 13:50:19,147 INFO L226 Difference]: Without dead ends: 11050 [2022-03-15 13:50:19,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=460, Invalid=1432, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 13:50:19,148 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 277 mSDsluCounter, 2654 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 2918 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:19,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [277 Valid, 2918 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:19,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11050 states. [2022-03-15 13:50:19,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11050 to 9006. [2022-03-15 13:50:19,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.700388672959467) internal successors, (24317), 9005 states have internal predecessors, (24317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:19,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24317 transitions. [2022-03-15 13:50:19,296 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24317 transitions. Word has length 109 [2022-03-15 13:50:19,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:19,296 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24317 transitions. [2022-03-15 13:50:19,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:19,296 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24317 transitions. [2022-03-15 13:50:19,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:19,309 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:19,309 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:19,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-03-15 13:50:19,309 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:19,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:19,309 INFO L85 PathProgramCache]: Analyzing trace with hash 502174872, now seen corresponding path program 71 times [2022-03-15 13:50:19,310 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:19,310 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953087737] [2022-03-15 13:50:19,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:19,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:19,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:19,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:19,422 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:19,422 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953087737] [2022-03-15 13:50:19,422 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953087737] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:19,422 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:19,422 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:19,422 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306069129] [2022-03-15 13:50:19,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:19,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:19,422 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:19,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:19,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:19,423 INFO L87 Difference]: Start difference. First operand 9006 states and 24317 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:19,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:19,874 INFO L93 Difference]: Finished difference Result 11414 states and 30764 transitions. [2022-03-15 13:50:19,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:50:19,875 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:19,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:19,890 INFO L225 Difference]: With dead ends: 11414 [2022-03-15 13:50:19,891 INFO L226 Difference]: Without dead ends: 10929 [2022-03-15 13:50:19,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=328, Invalid=1078, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:50:19,891 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 216 mSDsluCounter, 2845 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 3104 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:19,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 3104 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:19,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10929 states. [2022-03-15 13:50:19,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10929 to 9010. [2022-03-15 13:50:20,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.6999666999667) internal successors, (24324), 9009 states have internal predecessors, (24324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:20,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24324 transitions. [2022-03-15 13:50:20,025 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24324 transitions. Word has length 109 [2022-03-15 13:50:20,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:20,026 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24324 transitions. [2022-03-15 13:50:20,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:20,026 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24324 transitions. [2022-03-15 13:50:20,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:20,037 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:20,037 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:20,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-03-15 13:50:20,037 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:20,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:20,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1183795526, now seen corresponding path program 72 times [2022-03-15 13:50:20,038 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:20,038 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838424450] [2022-03-15 13:50:20,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:20,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:20,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:20,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:20,144 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:20,144 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838424450] [2022-03-15 13:50:20,144 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838424450] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:20,144 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:20,144 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:20,144 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425941415] [2022-03-15 13:50:20,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:20,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:20,144 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:20,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:20,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:20,144 INFO L87 Difference]: Start difference. First operand 9010 states and 24324 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:20,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:20,588 INFO L93 Difference]: Finished difference Result 11348 states and 30587 transitions. [2022-03-15 13:50:20,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:50:20,588 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:20,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:20,606 INFO L225 Difference]: With dead ends: 11348 [2022-03-15 13:50:20,606 INFO L226 Difference]: Without dead ends: 10854 [2022-03-15 13:50:20,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=325, Invalid=1081, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:50:20,606 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 203 mSDsluCounter, 2815 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 3077 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:20,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 3077 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:20,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10854 states. [2022-03-15 13:50:20,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10854 to 8998. [2022-03-15 13:50:20,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8998 states, 8997 states have (on average 2.7007891519395355) internal successors, (24299), 8997 states have internal predecessors, (24299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:20,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24299 transitions. [2022-03-15 13:50:20,756 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24299 transitions. Word has length 109 [2022-03-15 13:50:20,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:20,756 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24299 transitions. [2022-03-15 13:50:20,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:20,756 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24299 transitions. [2022-03-15 13:50:20,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:20,768 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:20,768 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:20,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-03-15 13:50:20,768 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:20,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:20,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1506729378, now seen corresponding path program 73 times [2022-03-15 13:50:20,769 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:20,769 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024346398] [2022-03-15 13:50:20,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:20,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:20,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:20,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:20,878 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:20,878 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024346398] [2022-03-15 13:50:20,878 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024346398] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:20,878 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:20,879 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:20,879 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341585779] [2022-03-15 13:50:20,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:20,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:20,879 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:20,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:20,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:20,879 INFO L87 Difference]: Start difference. First operand 8998 states and 24299 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:21,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:21,493 INFO L93 Difference]: Finished difference Result 11491 states and 30936 transitions. [2022-03-15 13:50:21,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-15 13:50:21,493 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:21,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:21,511 INFO L225 Difference]: With dead ends: 11491 [2022-03-15 13:50:21,512 INFO L226 Difference]: Without dead ends: 10920 [2022-03-15 13:50:21,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 630 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=614, Invalid=1936, Unknown=0, NotChecked=0, Total=2550 [2022-03-15 13:50:21,512 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 323 mSDsluCounter, 3200 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 3451 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:21,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [323 Valid, 3451 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:50:21,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10920 states. [2022-03-15 13:50:21,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10920 to 9002. [2022-03-15 13:50:21,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700366625930452) internal successors, (24306), 9001 states have internal predecessors, (24306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:21,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24306 transitions. [2022-03-15 13:50:21,659 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24306 transitions. Word has length 109 [2022-03-15 13:50:21,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:21,659 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24306 transitions. [2022-03-15 13:50:21,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:21,659 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24306 transitions. [2022-03-15 13:50:21,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:21,670 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:21,670 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:21,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-03-15 13:50:21,670 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:21,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:21,670 INFO L85 PathProgramCache]: Analyzing trace with hash -998675464, now seen corresponding path program 74 times [2022-03-15 13:50:21,671 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:21,671 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395128789] [2022-03-15 13:50:21,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:21,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:21,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:21,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:21,780 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:21,780 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395128789] [2022-03-15 13:50:21,780 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395128789] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:21,780 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:21,780 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:21,780 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432123062] [2022-03-15 13:50:21,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:21,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:21,780 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:21,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:21,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:21,781 INFO L87 Difference]: Start difference. First operand 9002 states and 24306 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:22,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:22,346 INFO L93 Difference]: Finished difference Result 11478 states and 30915 transitions. [2022-03-15 13:50:22,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:50:22,347 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:22,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:22,363 INFO L225 Difference]: With dead ends: 11478 [2022-03-15 13:50:22,363 INFO L226 Difference]: Without dead ends: 10950 [2022-03-15 13:50:22,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 461 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=475, Invalid=1595, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:50:22,364 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 271 mSDsluCounter, 3134 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 3388 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:22,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [271 Valid, 3388 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:50:22,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10950 states. [2022-03-15 13:50:22,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10950 to 9006. [2022-03-15 13:50:22,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.6999444752915047) internal successors, (24313), 9005 states have internal predecessors, (24313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:22,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24313 transitions. [2022-03-15 13:50:22,495 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24313 transitions. Word has length 109 [2022-03-15 13:50:22,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:22,495 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24313 transitions. [2022-03-15 13:50:22,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:22,495 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24313 transitions. [2022-03-15 13:50:22,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:22,506 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:22,506 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:22,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-03-15 13:50:22,507 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:22,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:22,507 INFO L85 PathProgramCache]: Analyzing trace with hash 788259490, now seen corresponding path program 75 times [2022-03-15 13:50:22,507 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:22,507 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929331174] [2022-03-15 13:50:22,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:22,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:22,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:22,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:22,611 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:22,611 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929331174] [2022-03-15 13:50:22,611 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929331174] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:22,611 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:22,611 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:22,611 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038831908] [2022-03-15 13:50:22,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:22,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:22,611 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:22,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:22,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:22,612 INFO L87 Difference]: Start difference. First operand 9006 states and 24313 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:23,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:23,064 INFO L93 Difference]: Finished difference Result 11314 states and 30485 transitions. [2022-03-15 13:50:23,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:50:23,064 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:23,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:23,080 INFO L225 Difference]: With dead ends: 11314 [2022-03-15 13:50:23,081 INFO L226 Difference]: Without dead ends: 10829 [2022-03-15 13:50:23,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=323, Invalid=1083, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:50:23,081 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 208 mSDsluCounter, 2864 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 3124 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:23,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 3124 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:23,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10829 states. [2022-03-15 13:50:23,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10829 to 9010. [2022-03-15 13:50:23,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.6995226995226997) internal successors, (24320), 9009 states have internal predecessors, (24320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:23,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24320 transitions. [2022-03-15 13:50:23,223 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24320 transitions. Word has length 109 [2022-03-15 13:50:23,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:23,223 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24320 transitions. [2022-03-15 13:50:23,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:23,223 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24320 transitions. [2022-03-15 13:50:23,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:23,235 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:23,235 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:23,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-03-15 13:50:23,235 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:23,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:23,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1469880144, now seen corresponding path program 76 times [2022-03-15 13:50:23,236 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:23,236 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145589848] [2022-03-15 13:50:23,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:23,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:23,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:23,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:23,375 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:23,376 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145589848] [2022-03-15 13:50:23,376 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145589848] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:23,376 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:23,376 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:23,376 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333433687] [2022-03-15 13:50:23,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:23,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:23,376 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:23,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:23,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:23,376 INFO L87 Difference]: Start difference. First operand 9010 states and 24320 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:23,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:23,815 INFO L93 Difference]: Finished difference Result 11248 states and 30308 transitions. [2022-03-15 13:50:23,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:50:23,815 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:23,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:23,835 INFO L225 Difference]: With dead ends: 11248 [2022-03-15 13:50:23,835 INFO L226 Difference]: Without dead ends: 10746 [2022-03-15 13:50:23,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=309, Invalid=1023, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:50:23,836 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 196 mSDsluCounter, 2829 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 3091 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:23,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 3091 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:23,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10746 states. [2022-03-15 13:50:23,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10746 to 8990. [2022-03-15 13:50:23,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8990 states, 8989 states have (on average 2.7011903437534763) internal successors, (24281), 8989 states have internal predecessors, (24281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:23,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8990 states to 8990 states and 24281 transitions. [2022-03-15 13:50:23,988 INFO L78 Accepts]: Start accepts. Automaton has 8990 states and 24281 transitions. Word has length 109 [2022-03-15 13:50:23,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:23,988 INFO L470 AbstractCegarLoop]: Abstraction has 8990 states and 24281 transitions. [2022-03-15 13:50:23,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:23,988 INFO L276 IsEmpty]: Start isEmpty. Operand 8990 states and 24281 transitions. [2022-03-15 13:50:24,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:24,000 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:24,001 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:24,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-03-15 13:50:24,001 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:24,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:24,001 INFO L85 PathProgramCache]: Analyzing trace with hash 457042722, now seen corresponding path program 77 times [2022-03-15 13:50:24,001 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:24,001 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153431859] [2022-03-15 13:50:24,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:24,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:24,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:24,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:24,113 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:24,113 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153431859] [2022-03-15 13:50:24,113 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153431859] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:24,113 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:24,113 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:24,113 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563747734] [2022-03-15 13:50:24,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:24,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:24,113 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:24,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:24,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:24,114 INFO L87 Difference]: Start difference. First operand 8990 states and 24281 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:24,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:24,547 INFO L93 Difference]: Finished difference Result 11318 states and 30508 transitions. [2022-03-15 13:50:24,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:50:24,547 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:24,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:24,562 INFO L225 Difference]: With dead ends: 11318 [2022-03-15 13:50:24,562 INFO L226 Difference]: Without dead ends: 10833 [2022-03-15 13:50:24,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=302, Invalid=888, Unknown=0, NotChecked=0, Total=1190 [2022-03-15 13:50:24,562 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 213 mSDsluCounter, 2131 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2398 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:24,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 2398 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:24,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10833 states. [2022-03-15 13:50:24,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10833 to 9010. [2022-03-15 13:50:24,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.700854700854701) internal successors, (24332), 9009 states have internal predecessors, (24332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:24,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24332 transitions. [2022-03-15 13:50:24,690 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24332 transitions. Word has length 109 [2022-03-15 13:50:24,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:24,690 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24332 transitions. [2022-03-15 13:50:24,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:24,691 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24332 transitions. [2022-03-15 13:50:24,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:24,701 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:24,701 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:24,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-03-15 13:50:24,701 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:24,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:24,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1138663376, now seen corresponding path program 78 times [2022-03-15 13:50:24,702 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:24,702 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056170856] [2022-03-15 13:50:24,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:24,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:24,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:24,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:24,806 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:24,806 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056170856] [2022-03-15 13:50:24,806 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056170856] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:24,806 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:24,806 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:24,807 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620886931] [2022-03-15 13:50:24,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:24,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:24,807 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:24,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:24,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:24,807 INFO L87 Difference]: Start difference. First operand 9010 states and 24332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:25,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:25,257 INFO L93 Difference]: Finished difference Result 11284 states and 30419 transitions. [2022-03-15 13:50:25,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:50:25,258 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:25,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:25,273 INFO L225 Difference]: With dead ends: 11284 [2022-03-15 13:50:25,274 INFO L226 Difference]: Without dead ends: 10798 [2022-03-15 13:50:25,274 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=329, Invalid=1153, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:50:25,274 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 198 mSDsluCounter, 2834 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 3097 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:25,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 3097 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:25,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10798 states. [2022-03-15 13:50:25,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10798 to 9006. [2022-03-15 13:50:25,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.7008328706274294) internal successors, (24321), 9005 states have internal predecessors, (24321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:25,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24321 transitions. [2022-03-15 13:50:25,412 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24321 transitions. Word has length 109 [2022-03-15 13:50:25,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:25,412 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24321 transitions. [2022-03-15 13:50:25,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:25,412 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24321 transitions. [2022-03-15 13:50:25,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:25,423 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:25,423 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:25,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-03-15 13:50:25,424 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:25,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:25,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1839350932, now seen corresponding path program 79 times [2022-03-15 13:50:25,424 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:25,424 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269345952] [2022-03-15 13:50:25,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:25,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:25,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:25,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:25,537 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:25,537 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269345952] [2022-03-15 13:50:25,537 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269345952] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:25,537 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:25,537 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:25,537 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625404368] [2022-03-15 13:50:25,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:25,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:25,539 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:25,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:25,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:25,539 INFO L87 Difference]: Start difference. First operand 9006 states and 24321 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:26,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:26,130 INFO L93 Difference]: Finished difference Result 11320 states and 30514 transitions. [2022-03-15 13:50:26,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:50:26,131 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:26,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:26,149 INFO L225 Difference]: With dead ends: 11320 [2022-03-15 13:50:26,149 INFO L226 Difference]: Without dead ends: 10794 [2022-03-15 13:50:26,149 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=481, Invalid=1589, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:50:26,150 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 250 mSDsluCounter, 2922 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 3192 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:26,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [250 Valid, 3192 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:26,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10794 states. [2022-03-15 13:50:26,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10794 to 9002. [2022-03-15 13:50:26,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700811020997667) internal successors, (24310), 9001 states have internal predecessors, (24310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:26,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24310 transitions. [2022-03-15 13:50:26,293 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24310 transitions. Word has length 109 [2022-03-15 13:50:26,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:26,294 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24310 transitions. [2022-03-15 13:50:26,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:26,294 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24310 transitions. [2022-03-15 13:50:26,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:26,305 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:26,305 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:26,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-03-15 13:50:26,305 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:26,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:26,306 INFO L85 PathProgramCache]: Analyzing trace with hash -304725532, now seen corresponding path program 80 times [2022-03-15 13:50:26,306 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:26,306 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115244137] [2022-03-15 13:50:26,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:26,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:26,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:26,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:26,406 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:26,406 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115244137] [2022-03-15 13:50:26,406 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115244137] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:26,406 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:26,406 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:26,406 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081965908] [2022-03-15 13:50:26,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:26,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:26,407 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:26,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:26,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:26,407 INFO L87 Difference]: Start difference. First operand 9002 states and 24310 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:27,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:27,071 INFO L93 Difference]: Finished difference Result 11548 states and 31113 transitions. [2022-03-15 13:50:27,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-15 13:50:27,071 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:27,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:27,091 INFO L225 Difference]: With dead ends: 11548 [2022-03-15 13:50:27,091 INFO L226 Difference]: Without dead ends: 10982 [2022-03-15 13:50:27,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 753 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=668, Invalid=2194, Unknown=0, NotChecked=0, Total=2862 [2022-03-15 13:50:27,092 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 320 mSDsluCounter, 3306 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 3574 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:27,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 3574 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:50:27,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10982 states. [2022-03-15 13:50:27,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10982 to 8998. [2022-03-15 13:50:27,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8998 states, 8997 states have (on average 2.7007891519395355) internal successors, (24299), 8997 states have internal predecessors, (24299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:27,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24299 transitions. [2022-03-15 13:50:27,243 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24299 transitions. Word has length 109 [2022-03-15 13:50:27,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:27,243 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24299 transitions. [2022-03-15 13:50:27,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:27,243 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24299 transitions. [2022-03-15 13:50:27,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:27,254 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:27,254 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:27,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-03-15 13:50:27,254 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:27,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:27,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1487686952, now seen corresponding path program 81 times [2022-03-15 13:50:27,255 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:27,255 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599174499] [2022-03-15 13:50:27,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:27,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:27,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:27,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:27,359 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:27,360 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599174499] [2022-03-15 13:50:27,360 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599174499] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:27,360 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:27,360 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:27,360 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768109697] [2022-03-15 13:50:27,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:27,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:27,360 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:27,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:27,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:27,360 INFO L87 Difference]: Start difference. First operand 8998 states and 24299 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:27,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:27,809 INFO L93 Difference]: Finished difference Result 11294 states and 30438 transitions. [2022-03-15 13:50:27,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:50:27,809 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:27,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:27,826 INFO L225 Difference]: With dead ends: 11294 [2022-03-15 13:50:27,826 INFO L226 Difference]: Without dead ends: 10809 [2022-03-15 13:50:27,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=318, Invalid=942, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:50:27,826 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 205 mSDsluCounter, 2574 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 2834 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:27,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 2834 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:27,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10809 states. [2022-03-15 13:50:27,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10809 to 9010. [2022-03-15 13:50:27,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.7004107004107003) internal successors, (24328), 9009 states have internal predecessors, (24328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:27,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24328 transitions. [2022-03-15 13:50:27,968 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24328 transitions. Word has length 109 [2022-03-15 13:50:27,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:27,968 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24328 transitions. [2022-03-15 13:50:27,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:27,968 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24328 transitions. [2022-03-15 13:50:27,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:27,979 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:27,979 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:27,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-03-15 13:50:27,980 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:27,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:27,980 INFO L85 PathProgramCache]: Analyzing trace with hash -2125659690, now seen corresponding path program 82 times [2022-03-15 13:50:27,980 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:27,980 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696511689] [2022-03-15 13:50:27,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:27,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:27,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:28,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:28,083 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:28,083 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696511689] [2022-03-15 13:50:28,083 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696511689] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:28,083 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:28,083 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:28,083 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757310977] [2022-03-15 13:50:28,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:28,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:28,083 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:28,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:28,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:28,084 INFO L87 Difference]: Start difference. First operand 9010 states and 24328 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:28,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:28,540 INFO L93 Difference]: Finished difference Result 11252 states and 30327 transitions. [2022-03-15 13:50:28,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:50:28,540 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:28,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:28,557 INFO L225 Difference]: With dead ends: 11252 [2022-03-15 13:50:28,557 INFO L226 Difference]: Without dead ends: 10766 [2022-03-15 13:50:28,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=334, Invalid=1148, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:50:28,558 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 197 mSDsluCounter, 2995 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 3256 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:28,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 3256 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:50:28,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10766 states. [2022-03-15 13:50:28,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10766 to 9006. [2022-03-15 13:50:28,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.700388672959467) internal successors, (24317), 9005 states have internal predecessors, (24317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:28,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24317 transitions. [2022-03-15 13:50:28,682 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24317 transitions. Word has length 109 [2022-03-15 13:50:28,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:28,682 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24317 transitions. [2022-03-15 13:50:28,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:28,682 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24317 transitions. [2022-03-15 13:50:28,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:28,694 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:28,694 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:28,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-03-15 13:50:28,695 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:28,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:28,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1424972134, now seen corresponding path program 83 times [2022-03-15 13:50:28,695 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:28,695 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665249773] [2022-03-15 13:50:28,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:28,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:28,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:28,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:28,816 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:28,816 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665249773] [2022-03-15 13:50:28,816 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665249773] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:28,816 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:28,816 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:28,816 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129337014] [2022-03-15 13:50:28,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:28,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:28,817 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:28,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:28,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:28,817 INFO L87 Difference]: Start difference. First operand 9006 states and 24317 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:29,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:29,401 INFO L93 Difference]: Finished difference Result 11420 states and 30769 transitions. [2022-03-15 13:50:29,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:50:29,402 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:29,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:29,420 INFO L225 Difference]: With dead ends: 11420 [2022-03-15 13:50:29,420 INFO L226 Difference]: Without dead ends: 10894 [2022-03-15 13:50:29,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=469, Invalid=1511, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 13:50:29,421 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 263 mSDsluCounter, 2799 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 3068 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:29,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 3068 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:29,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10894 states. [2022-03-15 13:50:29,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10894 to 9002. [2022-03-15 13:50:29,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700366625930452) internal successors, (24306), 9001 states have internal predecessors, (24306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:29,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24306 transitions. [2022-03-15 13:50:29,570 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24306 transitions. Word has length 109 [2022-03-15 13:50:29,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:29,570 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24306 transitions. [2022-03-15 13:50:29,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:29,571 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24306 transitions. [2022-03-15 13:50:29,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:29,582 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:29,582 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:29,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-03-15 13:50:29,583 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:29,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:29,583 INFO L85 PathProgramCache]: Analyzing trace with hash -347284106, now seen corresponding path program 84 times [2022-03-15 13:50:29,583 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:29,583 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368354522] [2022-03-15 13:50:29,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:29,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:29,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:29,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:29,690 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:29,690 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368354522] [2022-03-15 13:50:29,690 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368354522] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:29,690 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:29,690 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:29,690 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026351736] [2022-03-15 13:50:29,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:29,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:29,690 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:29,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:29,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:29,691 INFO L87 Difference]: Start difference. First operand 9002 states and 24306 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:30,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:30,218 INFO L93 Difference]: Finished difference Result 11338 states and 30530 transitions. [2022-03-15 13:50:30,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-15 13:50:30,218 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:30,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:30,233 INFO L225 Difference]: With dead ends: 11338 [2022-03-15 13:50:30,233 INFO L226 Difference]: Without dead ends: 10810 [2022-03-15 13:50:30,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=443, Invalid=1363, Unknown=0, NotChecked=0, Total=1806 [2022-03-15 13:50:30,234 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 262 mSDsluCounter, 3304 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 3549 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:30,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 3549 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:50:30,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10810 states. [2022-03-15 13:50:30,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10810 to 9006. [2022-03-15 13:50:30,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.6999444752915047) internal successors, (24313), 9005 states have internal predecessors, (24313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:30,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24313 transitions. [2022-03-15 13:50:30,359 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24313 transitions. Word has length 109 [2022-03-15 13:50:30,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:30,359 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24313 transitions. [2022-03-15 13:50:30,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:30,359 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24313 transitions. [2022-03-15 13:50:30,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:30,370 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:30,370 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:30,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-03-15 13:50:30,370 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:30,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:30,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1439650848, now seen corresponding path program 85 times [2022-03-15 13:50:30,370 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:30,370 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735952986] [2022-03-15 13:50:30,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:30,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:30,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:30,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:30,475 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:30,475 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735952986] [2022-03-15 13:50:30,475 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735952986] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:30,475 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:30,475 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:30,475 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91846156] [2022-03-15 13:50:30,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:30,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:30,475 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:30,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:30,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:30,476 INFO L87 Difference]: Start difference. First operand 9006 states and 24313 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:30,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:30,940 INFO L93 Difference]: Finished difference Result 11238 states and 30276 transitions. [2022-03-15 13:50:30,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:50:30,940 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:30,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:30,958 INFO L225 Difference]: With dead ends: 11238 [2022-03-15 13:50:30,959 INFO L226 Difference]: Without dead ends: 10753 [2022-03-15 13:50:30,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=336, Invalid=996, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:50:30,959 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 204 mSDsluCounter, 2856 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 3114 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:30,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [204 Valid, 3114 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:30,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10753 states. [2022-03-15 13:50:31,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10753 to 9010. [2022-03-15 13:50:31,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.6995226995226997) internal successors, (24320), 9009 states have internal predecessors, (24320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:31,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24320 transitions. [2022-03-15 13:50:31,114 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24320 transitions. Word has length 109 [2022-03-15 13:50:31,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:31,114 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24320 transitions. [2022-03-15 13:50:31,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:31,114 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24320 transitions. [2022-03-15 13:50:31,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:31,126 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:31,126 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:31,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-03-15 13:50:31,126 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:31,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:31,127 INFO L85 PathProgramCache]: Analyzing trace with hash 2121271502, now seen corresponding path program 86 times [2022-03-15 13:50:31,127 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:31,127 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933405638] [2022-03-15 13:50:31,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:31,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:31,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:31,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:31,233 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:31,233 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933405638] [2022-03-15 13:50:31,233 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933405638] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:31,233 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:31,233 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:31,233 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51726122] [2022-03-15 13:50:31,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:31,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:31,233 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:31,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:31,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:31,234 INFO L87 Difference]: Start difference. First operand 9010 states and 24320 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:31,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:31,648 INFO L93 Difference]: Finished difference Result 11188 states and 30143 transitions. [2022-03-15 13:50:31,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:50:31,648 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:31,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:31,663 INFO L225 Difference]: With dead ends: 11188 [2022-03-15 13:50:31,663 INFO L226 Difference]: Without dead ends: 10690 [2022-03-15 13:50:31,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=316, Invalid=1090, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:50:31,664 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 192 mSDsluCounter, 2839 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 3104 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:31,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 3104 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:31,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10690 states. [2022-03-15 13:50:31,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10690 to 8994. [2022-03-15 13:50:31,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8994 states, 8993 states have (on average 2.70076726342711) internal successors, (24288), 8993 states have internal predecessors, (24288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:31,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8994 states to 8994 states and 24288 transitions. [2022-03-15 13:50:31,783 INFO L78 Accepts]: Start accepts. Automaton has 8994 states and 24288 transitions. Word has length 109 [2022-03-15 13:50:31,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:31,783 INFO L470 AbstractCegarLoop]: Abstraction has 8994 states and 24288 transitions. [2022-03-15 13:50:31,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:31,783 INFO L276 IsEmpty]: Start isEmpty. Operand 8994 states and 24288 transitions. [2022-03-15 13:50:31,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:31,793 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:31,793 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:31,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-03-15 13:50:31,793 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:31,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:31,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1935686880, now seen corresponding path program 87 times [2022-03-15 13:50:31,793 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:31,793 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352216002] [2022-03-15 13:50:31,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:31,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:31,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:31,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:31,900 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:31,901 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352216002] [2022-03-15 13:50:31,901 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352216002] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:31,901 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:31,901 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:31,901 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624407496] [2022-03-15 13:50:31,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:31,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:31,901 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:31,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:31,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:31,901 INFO L87 Difference]: Start difference. First operand 8994 states and 24288 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:32,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:32,300 INFO L93 Difference]: Finished difference Result 11130 states and 29987 transitions. [2022-03-15 13:50:32,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-15 13:50:32,301 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:32,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:32,317 INFO L225 Difference]: With dead ends: 11130 [2022-03-15 13:50:32,317 INFO L226 Difference]: Without dead ends: 10645 [2022-03-15 13:50:32,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=289, Invalid=833, Unknown=0, NotChecked=0, Total=1122 [2022-03-15 13:50:32,317 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 201 mSDsluCounter, 2313 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 2574 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:32,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 2574 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:32,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10645 states. [2022-03-15 13:50:32,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10645 to 9010. [2022-03-15 13:50:32,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.7004107004107003) internal successors, (24328), 9009 states have internal predecessors, (24328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:32,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24328 transitions. [2022-03-15 13:50:32,457 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24328 transitions. Word has length 109 [2022-03-15 13:50:32,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:32,457 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24328 transitions. [2022-03-15 13:50:32,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:32,457 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24328 transitions. [2022-03-15 13:50:32,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:32,468 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:32,468 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:32,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-03-15 13:50:32,469 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:32,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:32,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1677659762, now seen corresponding path program 88 times [2022-03-15 13:50:32,469 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:32,469 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960050759] [2022-03-15 13:50:32,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:32,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:32,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:32,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:32,569 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:32,569 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960050759] [2022-03-15 13:50:32,569 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960050759] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:32,569 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:32,569 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:32,569 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492494372] [2022-03-15 13:50:32,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:32,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:32,569 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:32,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:32,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:32,569 INFO L87 Difference]: Start difference. First operand 9010 states and 24328 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:33,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:33,027 INFO L93 Difference]: Finished difference Result 11100 states and 29909 transitions. [2022-03-15 13:50:33,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:50:33,028 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:33,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:33,044 INFO L225 Difference]: With dead ends: 11100 [2022-03-15 13:50:33,044 INFO L226 Difference]: Without dead ends: 10614 [2022-03-15 13:50:33,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=325, Invalid=1157, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:50:33,045 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 192 mSDsluCounter, 3180 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 3436 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:33,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 3436 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:33,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10614 states. [2022-03-15 13:50:33,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10614 to 9006. [2022-03-15 13:50:33,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.700388672959467) internal successors, (24317), 9005 states have internal predecessors, (24317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:33,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24317 transitions. [2022-03-15 13:50:33,189 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24317 transitions. Word has length 109 [2022-03-15 13:50:33,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:33,189 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24317 transitions. [2022-03-15 13:50:33,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:33,189 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24317 transitions. [2022-03-15 13:50:33,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:33,201 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:33,201 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:33,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-03-15 13:50:33,201 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:33,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:33,201 INFO L85 PathProgramCache]: Analyzing trace with hash -976972206, now seen corresponding path program 89 times [2022-03-15 13:50:33,201 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:33,201 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941656735] [2022-03-15 13:50:33,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:33,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:33,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:33,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:33,305 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:33,305 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941656735] [2022-03-15 13:50:33,306 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941656735] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:33,306 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:33,306 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:33,306 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785650561] [2022-03-15 13:50:33,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:33,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:33,306 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:33,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:33,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:33,306 INFO L87 Difference]: Start difference. First operand 9006 states and 24317 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:33,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:33,879 INFO L93 Difference]: Finished difference Result 11136 states and 30004 transitions. [2022-03-15 13:50:33,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:50:33,879 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:33,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:33,895 INFO L225 Difference]: With dead ends: 11136 [2022-03-15 13:50:33,896 INFO L226 Difference]: Without dead ends: 10610 [2022-03-15 13:50:33,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 514 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:50:33,896 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 255 mSDsluCounter, 2322 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 2601 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:33,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 2601 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:33,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10610 states. [2022-03-15 13:50:34,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10610 to 9002. [2022-03-15 13:50:34,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700366625930452) internal successors, (24306), 9001 states have internal predecessors, (24306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:34,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24306 transitions. [2022-03-15 13:50:34,038 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24306 transitions. Word has length 109 [2022-03-15 13:50:34,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:34,038 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24306 transitions. [2022-03-15 13:50:34,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:34,038 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24306 transitions. [2022-03-15 13:50:34,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:34,050 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:34,050 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:34,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-03-15 13:50:34,050 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:34,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:34,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1173918626, now seen corresponding path program 90 times [2022-03-15 13:50:34,051 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:34,051 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60883917] [2022-03-15 13:50:34,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:34,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:34,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:34,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:34,168 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:34,168 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60883917] [2022-03-15 13:50:34,168 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60883917] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:34,168 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:34,168 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:34,168 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934739750] [2022-03-15 13:50:34,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:34,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:34,169 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:34,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:34,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:34,169 INFO L87 Difference]: Start difference. First operand 9002 states and 24306 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:34,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:34,822 INFO L93 Difference]: Finished difference Result 11172 states and 30099 transitions. [2022-03-15 13:50:34,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-15 13:50:34,822 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:34,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:34,840 INFO L225 Difference]: With dead ends: 11172 [2022-03-15 13:50:34,840 INFO L226 Difference]: Without dead ends: 10606 [2022-03-15 13:50:34,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 802 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=675, Invalid=2295, Unknown=0, NotChecked=0, Total=2970 [2022-03-15 13:50:34,841 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 293 mSDsluCounter, 3338 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 3608 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:34,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 3608 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:50:34,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10606 states. [2022-03-15 13:50:34,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10606 to 8998. [2022-03-15 13:50:34,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8998 states, 8997 states have (on average 2.7003445592975437) internal successors, (24295), 8997 states have internal predecessors, (24295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:34,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24295 transitions. [2022-03-15 13:50:34,989 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24295 transitions. Word has length 109 [2022-03-15 13:50:34,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:34,989 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24295 transitions. [2022-03-15 13:50:34,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:34,989 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24295 transitions. [2022-03-15 13:50:35,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:35,001 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:35,001 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:35,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-03-15 13:50:35,001 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:35,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:35,001 INFO L85 PathProgramCache]: Analyzing trace with hash 2138109974, now seen corresponding path program 91 times [2022-03-15 13:50:35,001 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:35,001 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711932841] [2022-03-15 13:50:35,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:35,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:35,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:35,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:35,110 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:35,110 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711932841] [2022-03-15 13:50:35,110 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711932841] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:35,110 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:35,110 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:35,110 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195260011] [2022-03-15 13:50:35,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:35,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:35,110 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:35,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:35,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:35,111 INFO L87 Difference]: Start difference. First operand 8998 states and 24295 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:35,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:35,767 INFO L93 Difference]: Finished difference Result 11284 states and 30371 transitions. [2022-03-15 13:50:35,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-15 13:50:35,767 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:35,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:35,782 INFO L225 Difference]: With dead ends: 11284 [2022-03-15 13:50:35,782 INFO L226 Difference]: Without dead ends: 10670 [2022-03-15 13:50:35,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 916 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=796, Invalid=2510, Unknown=0, NotChecked=0, Total=3306 [2022-03-15 13:50:35,783 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 379 mSDsluCounter, 2812 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 3090 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:35,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [379 Valid, 3090 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:50:35,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10670 states. [2022-03-15 13:50:35,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10670 to 8986. [2022-03-15 13:50:35,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8986 states, 8985 states have (on average 2.701168614357262) internal successors, (24270), 8985 states have internal predecessors, (24270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:35,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8986 states to 8986 states and 24270 transitions. [2022-03-15 13:50:35,906 INFO L78 Accepts]: Start accepts. Automaton has 8986 states and 24270 transitions. Word has length 109 [2022-03-15 13:50:35,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:35,906 INFO L470 AbstractCegarLoop]: Abstraction has 8986 states and 24270 transitions. [2022-03-15 13:50:35,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:35,906 INFO L276 IsEmpty]: Start isEmpty. Operand 8986 states and 24270 transitions. [2022-03-15 13:50:35,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:35,916 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:35,916 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:35,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-03-15 13:50:35,916 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:35,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:35,916 INFO L85 PathProgramCache]: Analyzing trace with hash -831958788, now seen corresponding path program 92 times [2022-03-15 13:50:35,916 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:35,916 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292209761] [2022-03-15 13:50:35,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:35,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:35,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:36,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:36,033 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:36,033 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292209761] [2022-03-15 13:50:36,033 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292209761] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:36,033 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:36,033 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:36,033 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574518705] [2022-03-15 13:50:36,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:36,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:36,034 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:36,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:36,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:36,034 INFO L87 Difference]: Start difference. First operand 8986 states and 24270 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:36,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:36,475 INFO L93 Difference]: Finished difference Result 11086 states and 29870 transitions. [2022-03-15 13:50:36,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:50:36,475 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:36,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:36,491 INFO L225 Difference]: With dead ends: 11086 [2022-03-15 13:50:36,491 INFO L226 Difference]: Without dead ends: 10601 [2022-03-15 13:50:36,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=290, Invalid=900, Unknown=0, NotChecked=0, Total=1190 [2022-03-15 13:50:36,492 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 211 mSDsluCounter, 3015 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 3266 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:36,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 3266 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:50:36,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10601 states. [2022-03-15 13:50:36,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10601 to 9010. [2022-03-15 13:50:36,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.700854700854701) internal successors, (24332), 9009 states have internal predecessors, (24332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:36,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24332 transitions. [2022-03-15 13:50:36,636 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24332 transitions. Word has length 109 [2022-03-15 13:50:36,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:36,636 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24332 transitions. [2022-03-15 13:50:36,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:36,636 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24332 transitions. [2022-03-15 13:50:36,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:36,648 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:36,648 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:36,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-03-15 13:50:36,648 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:36,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:36,649 INFO L85 PathProgramCache]: Analyzing trace with hash -150338134, now seen corresponding path program 93 times [2022-03-15 13:50:36,649 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:36,649 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172331272] [2022-03-15 13:50:36,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:36,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:36,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:36,756 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:36,756 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172331272] [2022-03-15 13:50:36,756 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172331272] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:36,757 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:36,757 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:36,757 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090624457] [2022-03-15 13:50:36,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:36,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:36,757 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:36,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:36,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:36,757 INFO L87 Difference]: Start difference. First operand 9010 states and 24332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:37,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:37,224 INFO L93 Difference]: Finished difference Result 11052 states and 29781 transitions. [2022-03-15 13:50:37,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:50:37,224 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:37,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:37,241 INFO L225 Difference]: With dead ends: 11052 [2022-03-15 13:50:37,241 INFO L226 Difference]: Without dead ends: 10566 [2022-03-15 13:50:37,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=337, Invalid=1145, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:50:37,242 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 199 mSDsluCounter, 3000 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 3262 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:37,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 3262 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:50:37,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10566 states. [2022-03-15 13:50:37,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10566 to 9006. [2022-03-15 13:50:37,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.7008328706274294) internal successors, (24321), 9005 states have internal predecessors, (24321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:37,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24321 transitions. [2022-03-15 13:50:37,382 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24321 transitions. Word has length 109 [2022-03-15 13:50:37,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:37,382 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24321 transitions. [2022-03-15 13:50:37,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:37,382 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24321 transitions. [2022-03-15 13:50:37,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:37,394 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:37,394 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:37,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-03-15 13:50:37,394 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:37,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:37,394 INFO L85 PathProgramCache]: Analyzing trace with hash 550349422, now seen corresponding path program 94 times [2022-03-15 13:50:37,395 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:37,395 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866897564] [2022-03-15 13:50:37,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:37,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:37,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:37,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:37,506 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:37,506 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866897564] [2022-03-15 13:50:37,506 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866897564] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:37,506 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:37,506 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:37,506 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887005695] [2022-03-15 13:50:37,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:37,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:37,506 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:37,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:37,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:37,507 INFO L87 Difference]: Start difference. First operand 9006 states and 24321 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:38,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:38,136 INFO L93 Difference]: Finished difference Result 11088 states and 29876 transitions. [2022-03-15 13:50:38,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:50:38,136 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:38,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:38,153 INFO L225 Difference]: With dead ends: 11088 [2022-03-15 13:50:38,153 INFO L226 Difference]: Without dead ends: 10562 [2022-03-15 13:50:38,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=499, Invalid=1571, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:50:38,154 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 254 mSDsluCounter, 3083 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 3352 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:38,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 3352 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:50:38,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10562 states. [2022-03-15 13:50:38,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10562 to 9002. [2022-03-15 13:50:38,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700811020997667) internal successors, (24310), 9001 states have internal predecessors, (24310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:38,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24310 transitions. [2022-03-15 13:50:38,297 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24310 transitions. Word has length 109 [2022-03-15 13:50:38,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:38,297 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24310 transitions. [2022-03-15 13:50:38,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:38,297 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24310 transitions. [2022-03-15 13:50:38,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:38,309 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:38,309 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:38,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-03-15 13:50:38,309 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:38,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:38,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1593727042, now seen corresponding path program 95 times [2022-03-15 13:50:38,310 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:38,310 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845994827] [2022-03-15 13:50:38,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:38,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:38,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:38,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:38,429 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:38,429 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845994827] [2022-03-15 13:50:38,430 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845994827] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:38,430 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:38,430 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:38,430 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101655558] [2022-03-15 13:50:38,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:38,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:38,430 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:38,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:38,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:38,430 INFO L87 Difference]: Start difference. First operand 9002 states and 24310 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:39,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:39,054 INFO L93 Difference]: Finished difference Result 11176 states and 30090 transitions. [2022-03-15 13:50:39,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-15 13:50:39,054 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:39,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:39,070 INFO L225 Difference]: With dead ends: 11176 [2022-03-15 13:50:39,070 INFO L226 Difference]: Without dead ends: 10610 [2022-03-15 13:50:39,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 649 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=654, Invalid=1998, Unknown=0, NotChecked=0, Total=2652 [2022-03-15 13:50:39,071 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 322 mSDsluCounter, 3275 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 3542 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:39,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [322 Valid, 3542 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:50:39,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10610 states. [2022-03-15 13:50:39,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10610 to 8998. [2022-03-15 13:50:39,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8998 states, 8997 states have (on average 2.7007891519395355) internal successors, (24299), 8997 states have internal predecessors, (24299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:39,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24299 transitions. [2022-03-15 13:50:39,209 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24299 transitions. Word has length 109 [2022-03-15 13:50:39,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:39,210 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24299 transitions. [2022-03-15 13:50:39,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:39,210 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24299 transitions. [2022-03-15 13:50:39,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:39,221 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:39,221 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:39,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-03-15 13:50:39,221 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:39,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:39,221 INFO L85 PathProgramCache]: Analyzing trace with hash 198685442, now seen corresponding path program 96 times [2022-03-15 13:50:39,221 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:39,222 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622410246] [2022-03-15 13:50:39,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:39,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:39,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:39,332 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:39,332 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622410246] [2022-03-15 13:50:39,332 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622410246] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:39,332 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:39,332 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:39,332 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717545932] [2022-03-15 13:50:39,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:39,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:39,332 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:39,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:39,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:39,333 INFO L87 Difference]: Start difference. First operand 8998 states and 24299 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:39,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:39,781 INFO L93 Difference]: Finished difference Result 11150 states and 30042 transitions. [2022-03-15 13:50:39,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:50:39,781 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:39,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:39,798 INFO L225 Difference]: With dead ends: 11150 [2022-03-15 13:50:39,799 INFO L226 Difference]: Without dead ends: 10665 [2022-03-15 13:50:39,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=306, Invalid=954, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:50:39,799 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 236 mSDsluCounter, 2734 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 2988 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:39,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 2988 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:39,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10665 states. [2022-03-15 13:50:39,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10665 to 9010. [2022-03-15 13:50:39,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.7004107004107003) internal successors, (24328), 9009 states have internal predecessors, (24328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:39,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24328 transitions. [2022-03-15 13:50:39,943 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24328 transitions. Word has length 109 [2022-03-15 13:50:39,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:39,943 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24328 transitions. [2022-03-15 13:50:39,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:39,943 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24328 transitions. [2022-03-15 13:50:39,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:39,955 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:39,955 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:39,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-03-15 13:50:39,955 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:39,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:39,955 INFO L85 PathProgramCache]: Analyzing trace with hash 880306096, now seen corresponding path program 97 times [2022-03-15 13:50:39,955 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:39,955 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630079735] [2022-03-15 13:50:39,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:39,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:39,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:40,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:40,074 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:40,074 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630079735] [2022-03-15 13:50:40,074 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630079735] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:40,074 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:40,074 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:40,074 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321572819] [2022-03-15 13:50:40,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:40,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:40,074 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:40,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:40,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:40,075 INFO L87 Difference]: Start difference. First operand 9010 states and 24328 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:40,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:40,553 INFO L93 Difference]: Finished difference Result 11108 states and 29931 transitions. [2022-03-15 13:50:40,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:50:40,553 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:40,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:40,570 INFO L225 Difference]: With dead ends: 11108 [2022-03-15 13:50:40,570 INFO L226 Difference]: Without dead ends: 10622 [2022-03-15 13:50:40,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:50:40,571 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 221 mSDsluCounter, 3149 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 3405 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:40,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 3405 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:50:40,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10622 states. [2022-03-15 13:50:40,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10622 to 9006. [2022-03-15 13:50:40,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.700388672959467) internal successors, (24317), 9005 states have internal predecessors, (24317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:40,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24317 transitions. [2022-03-15 13:50:40,714 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24317 transitions. Word has length 109 [2022-03-15 13:50:40,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:40,714 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24317 transitions. [2022-03-15 13:50:40,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:40,714 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24317 transitions. [2022-03-15 13:50:40,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:40,754 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:40,754 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:40,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-03-15 13:50:40,754 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:40,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:40,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1580993652, now seen corresponding path program 98 times [2022-03-15 13:50:40,754 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:40,755 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123837391] [2022-03-15 13:50:40,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:40,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:40,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:40,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:40,864 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:40,864 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123837391] [2022-03-15 13:50:40,864 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123837391] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:40,864 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:40,864 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:40,864 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449833632] [2022-03-15 13:50:40,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:40,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:40,865 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:40,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:40,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:40,865 INFO L87 Difference]: Start difference. First operand 9006 states and 24317 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:41,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:41,436 INFO L93 Difference]: Finished difference Result 11236 states and 30263 transitions. [2022-03-15 13:50:41,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:50:41,437 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:41,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:41,452 INFO L225 Difference]: With dead ends: 11236 [2022-03-15 13:50:41,452 INFO L226 Difference]: Without dead ends: 10710 [2022-03-15 13:50:41,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=487, Invalid=1493, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 13:50:41,453 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 294 mSDsluCounter, 2489 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 2757 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:41,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [294 Valid, 2757 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:41,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10710 states. [2022-03-15 13:50:41,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10710 to 9002. [2022-03-15 13:50:41,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700366625930452) internal successors, (24306), 9001 states have internal predecessors, (24306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:41,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24306 transitions. [2022-03-15 13:50:41,572 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24306 transitions. Word has length 109 [2022-03-15 13:50:41,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:41,572 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24306 transitions. [2022-03-15 13:50:41,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:41,572 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24306 transitions. [2022-03-15 13:50:41,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:41,582 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:41,582 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:41,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-03-15 13:50:41,582 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:41,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:41,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1636285616, now seen corresponding path program 99 times [2022-03-15 13:50:41,582 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:41,583 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838176011] [2022-03-15 13:50:41,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:41,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:41,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:41,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:41,686 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:41,686 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838176011] [2022-03-15 13:50:41,686 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838176011] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:41,686 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:41,687 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:41,687 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543318222] [2022-03-15 13:50:41,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:41,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:41,687 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:41,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:41,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:41,687 INFO L87 Difference]: Start difference. First operand 9002 states and 24306 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:42,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:42,208 INFO L93 Difference]: Finished difference Result 11238 states and 30255 transitions. [2022-03-15 13:50:42,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-15 13:50:42,208 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:42,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:42,225 INFO L225 Difference]: With dead ends: 11238 [2022-03-15 13:50:42,225 INFO L226 Difference]: Without dead ends: 10710 [2022-03-15 13:50:42,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=441, Invalid=1451, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 13:50:42,226 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 285 mSDsluCounter, 3287 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 3531 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:42,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 3531 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:50:42,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10710 states. [2022-03-15 13:50:42,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10710 to 9006. [2022-03-15 13:50:42,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.6999444752915047) internal successors, (24313), 9005 states have internal predecessors, (24313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:42,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24313 transitions. [2022-03-15 13:50:42,365 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24313 transitions. Word has length 109 [2022-03-15 13:50:42,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:42,365 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24313 transitions. [2022-03-15 13:50:42,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:42,366 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24313 transitions. [2022-03-15 13:50:42,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:42,377 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:42,377 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:42,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-03-15 13:50:42,377 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:42,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:42,377 INFO L85 PathProgramCache]: Analyzing trace with hash 150649338, now seen corresponding path program 100 times [2022-03-15 13:50:42,377 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:42,377 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922167562] [2022-03-15 13:50:42,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:42,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:42,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:42,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:42,491 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:42,491 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922167562] [2022-03-15 13:50:42,491 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922167562] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:42,491 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:42,491 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:42,491 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035747952] [2022-03-15 13:50:42,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:42,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:42,491 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:42,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:42,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:42,492 INFO L87 Difference]: Start difference. First operand 9006 states and 24313 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:42,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:42,936 INFO L93 Difference]: Finished difference Result 11090 states and 29869 transitions. [2022-03-15 13:50:42,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:50:42,936 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:42,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:42,951 INFO L225 Difference]: With dead ends: 11090 [2022-03-15 13:50:42,951 INFO L226 Difference]: Without dead ends: 10605 [2022-03-15 13:50:42,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=324, Invalid=1008, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:50:42,951 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 222 mSDsluCounter, 2739 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 2996 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:42,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 2996 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:42,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10605 states. [2022-03-15 13:50:43,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10605 to 9010. [2022-03-15 13:50:43,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.6995226995226997) internal successors, (24320), 9009 states have internal predecessors, (24320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:43,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24320 transitions. [2022-03-15 13:50:43,073 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24320 transitions. Word has length 109 [2022-03-15 13:50:43,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:43,073 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24320 transitions. [2022-03-15 13:50:43,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:43,073 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24320 transitions. [2022-03-15 13:50:43,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:43,084 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:43,084 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:43,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-03-15 13:50:43,084 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:43,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:43,084 INFO L85 PathProgramCache]: Analyzing trace with hash 832269992, now seen corresponding path program 101 times [2022-03-15 13:50:43,084 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:43,084 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880591470] [2022-03-15 13:50:43,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:43,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:43,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:43,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:43,204 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:43,205 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880591470] [2022-03-15 13:50:43,205 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880591470] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:43,205 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:43,205 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:43,205 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427450448] [2022-03-15 13:50:43,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:43,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:43,205 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:43,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:43,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:43,206 INFO L87 Difference]: Start difference. First operand 9010 states and 24320 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:43,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:43,656 INFO L93 Difference]: Finished difference Result 11008 states and 29648 transitions. [2022-03-15 13:50:43,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:50:43,657 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:43,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:43,672 INFO L225 Difference]: With dead ends: 11008 [2022-03-15 13:50:43,672 INFO L226 Difference]: Without dead ends: 10510 [2022-03-15 13:50:43,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=324, Invalid=1082, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:50:43,672 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 201 mSDsluCounter, 2959 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 3215 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:43,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 3215 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:43,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10510 states. [2022-03-15 13:50:43,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10510 to 8994. [2022-03-15 13:50:43,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8994 states, 8993 states have (on average 2.70076726342711) internal successors, (24288), 8993 states have internal predecessors, (24288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:43,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8994 states to 8994 states and 24288 transitions. [2022-03-15 13:50:43,800 INFO L78 Accepts]: Start accepts. Automaton has 8994 states and 24288 transitions. Word has length 109 [2022-03-15 13:50:43,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:43,800 INFO L470 AbstractCegarLoop]: Abstraction has 8994 states and 24288 transitions. [2022-03-15 13:50:43,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:43,800 INFO L276 IsEmpty]: Start isEmpty. Operand 8994 states and 24288 transitions. [2022-03-15 13:50:43,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:43,811 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:43,811 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:43,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-03-15 13:50:43,811 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:43,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:43,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1280629754, now seen corresponding path program 102 times [2022-03-15 13:50:43,812 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:43,812 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25365474] [2022-03-15 13:50:43,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:43,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:43,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:43,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:43,932 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:43,932 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25365474] [2022-03-15 13:50:43,932 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25365474] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:43,932 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:43,932 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:43,932 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594703387] [2022-03-15 13:50:43,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:43,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:43,932 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:43,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:43,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:43,933 INFO L87 Difference]: Start difference. First operand 8994 states and 24288 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:44,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:44,362 INFO L93 Difference]: Finished difference Result 11186 states and 30141 transitions. [2022-03-15 13:50:44,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:50:44,362 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:44,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:44,381 INFO L225 Difference]: With dead ends: 11186 [2022-03-15 13:50:44,381 INFO L226 Difference]: Without dead ends: 10701 [2022-03-15 13:50:44,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=301, Invalid=959, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:50:44,381 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 237 mSDsluCounter, 2909 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 3157 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:44,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 3157 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:44,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10701 states. [2022-03-15 13:50:44,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10701 to 9010. [2022-03-15 13:50:44,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.7004107004107003) internal successors, (24328), 9009 states have internal predecessors, (24328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:44,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24328 transitions. [2022-03-15 13:50:44,550 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24328 transitions. Word has length 109 [2022-03-15 13:50:44,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:44,550 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24328 transitions. [2022-03-15 13:50:44,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:44,550 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24328 transitions. [2022-03-15 13:50:44,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:44,563 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:44,564 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:44,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-03-15 13:50:44,564 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:44,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:44,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1962250408, now seen corresponding path program 103 times [2022-03-15 13:50:44,564 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:44,564 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507416757] [2022-03-15 13:50:44,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:44,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:44,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:44,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:44,676 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:44,676 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507416757] [2022-03-15 13:50:44,676 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507416757] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:44,676 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:44,676 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:44,676 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71917150] [2022-03-15 13:50:44,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:44,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:44,676 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:44,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:44,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:44,677 INFO L87 Difference]: Start difference. First operand 9010 states and 24328 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:45,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:45,135 INFO L93 Difference]: Finished difference Result 11144 states and 30030 transitions. [2022-03-15 13:50:45,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:50:45,135 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:45,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:45,150 INFO L225 Difference]: With dead ends: 11144 [2022-03-15 13:50:45,150 INFO L226 Difference]: Without dead ends: 10658 [2022-03-15 13:50:45,151 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=347, Invalid=1135, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:50:45,151 INFO L933 BasicCegarLoop]: 301 mSDtfsCounter, 221 mSDsluCounter, 3135 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 3389 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:45,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 3389 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:45,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10658 states. [2022-03-15 13:50:45,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10658 to 9006. [2022-03-15 13:50:45,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.700388672959467) internal successors, (24317), 9005 states have internal predecessors, (24317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:45,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24317 transitions. [2022-03-15 13:50:45,267 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24317 transitions. Word has length 109 [2022-03-15 13:50:45,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:45,267 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24317 transitions. [2022-03-15 13:50:45,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:45,268 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24317 transitions. [2022-03-15 13:50:45,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:45,279 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:45,279 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:45,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-03-15 13:50:45,279 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:45,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:45,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1632029332, now seen corresponding path program 104 times [2022-03-15 13:50:45,279 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:45,279 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179963522] [2022-03-15 13:50:45,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:45,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:45,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:45,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:45,409 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:45,409 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179963522] [2022-03-15 13:50:45,409 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179963522] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:45,409 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:45,409 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:45,409 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839319238] [2022-03-15 13:50:45,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:45,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:45,409 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:45,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:45,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:45,409 INFO L87 Difference]: Start difference. First operand 9006 states and 24317 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:45,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:45,986 INFO L93 Difference]: Finished difference Result 11252 states and 30307 transitions. [2022-03-15 13:50:45,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-15 13:50:45,986 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:45,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:46,001 INFO L225 Difference]: With dead ends: 11252 [2022-03-15 13:50:46,001 INFO L226 Difference]: Without dead ends: 10726 [2022-03-15 13:50:46,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=476, Invalid=1416, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 13:50:46,002 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 291 mSDsluCounter, 3007 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 3265 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:46,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 3265 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:46,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10726 states. [2022-03-15 13:50:46,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10726 to 9002. [2022-03-15 13:50:46,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700366625930452) internal successors, (24306), 9001 states have internal predecessors, (24306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:46,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24306 transitions. [2022-03-15 13:50:46,183 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24306 transitions. Word has length 109 [2022-03-15 13:50:46,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:46,183 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24306 transitions. [2022-03-15 13:50:46,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:46,183 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24306 transitions. [2022-03-15 13:50:46,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:46,193 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:46,193 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:46,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-03-15 13:50:46,194 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:46,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:46,194 INFO L85 PathProgramCache]: Analyzing trace with hash -554341304, now seen corresponding path program 105 times [2022-03-15 13:50:46,194 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:46,194 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191112162] [2022-03-15 13:50:46,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:46,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:46,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:46,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:46,299 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:46,299 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191112162] [2022-03-15 13:50:46,299 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191112162] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:46,299 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:46,299 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:46,299 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172691478] [2022-03-15 13:50:46,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:46,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:46,300 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:46,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:46,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:46,300 INFO L87 Difference]: Start difference. First operand 9002 states and 24306 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:46,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:46,835 INFO L93 Difference]: Finished difference Result 11350 states and 30563 transitions. [2022-03-15 13:50:46,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:50:46,835 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:46,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:46,852 INFO L225 Difference]: With dead ends: 11350 [2022-03-15 13:50:46,853 INFO L226 Difference]: Without dead ends: 10822 [2022-03-15 13:50:46,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=452, Invalid=1528, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 13:50:46,853 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 294 mSDsluCounter, 3103 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 3353 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:46,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [294 Valid, 3353 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:50:46,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10822 states. [2022-03-15 13:50:46,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10822 to 9006. [2022-03-15 13:50:46,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.6999444752915047) internal successors, (24313), 9005 states have internal predecessors, (24313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:46,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24313 transitions. [2022-03-15 13:50:46,997 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24313 transitions. Word has length 109 [2022-03-15 13:50:46,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:46,997 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24313 transitions. [2022-03-15 13:50:46,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:46,997 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24313 transitions. [2022-03-15 13:50:47,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:47,008 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:47,008 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:47,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-03-15 13:50:47,009 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:47,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:47,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1232593650, now seen corresponding path program 106 times [2022-03-15 13:50:47,009 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:47,009 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933601408] [2022-03-15 13:50:47,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:47,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:47,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:47,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:47,117 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:47,117 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933601408] [2022-03-15 13:50:47,117 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933601408] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:47,117 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:47,117 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:47,117 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242181379] [2022-03-15 13:50:47,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:47,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:47,118 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:47,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:47,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:47,118 INFO L87 Difference]: Start difference. First operand 9006 states and 24313 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:47,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:47,577 INFO L93 Difference]: Finished difference Result 11186 states and 30133 transitions. [2022-03-15 13:50:47,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:50:47,577 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:47,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:47,594 INFO L225 Difference]: With dead ends: 11186 [2022-03-15 13:50:47,595 INFO L226 Difference]: Without dead ends: 10701 [2022-03-15 13:50:47,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=319, Invalid=1013, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:50:47,595 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 228 mSDsluCounter, 3008 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 3260 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:47,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 3260 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:47,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10701 states. [2022-03-15 13:50:47,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10701 to 9010. [2022-03-15 13:50:47,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.6995226995226997) internal successors, (24320), 9009 states have internal predecessors, (24320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:47,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24320 transitions. [2022-03-15 13:50:47,744 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24320 transitions. Word has length 109 [2022-03-15 13:50:47,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:47,744 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24320 transitions. [2022-03-15 13:50:47,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:47,744 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24320 transitions. [2022-03-15 13:50:47,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:47,756 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:47,756 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:47,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-03-15 13:50:47,756 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:47,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:47,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1914214304, now seen corresponding path program 107 times [2022-03-15 13:50:47,757 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:47,757 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276748765] [2022-03-15 13:50:47,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:47,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:47,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:47,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:47,863 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:47,863 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276748765] [2022-03-15 13:50:47,863 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276748765] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:47,863 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:47,863 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:47,863 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464290416] [2022-03-15 13:50:47,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:47,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:47,863 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:47,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:47,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:47,864 INFO L87 Difference]: Start difference. First operand 9010 states and 24320 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:48,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:48,300 INFO L93 Difference]: Finished difference Result 11120 states and 29956 transitions. [2022-03-15 13:50:48,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:50:48,300 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:48,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:48,317 INFO L225 Difference]: With dead ends: 11120 [2022-03-15 13:50:48,317 INFO L226 Difference]: Without dead ends: 10626 [2022-03-15 13:50:48,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=329, Invalid=1077, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:50:48,317 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 212 mSDsluCounter, 2956 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 3211 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:48,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 3211 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:48,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10626 states. [2022-03-15 13:50:48,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10626 to 8998. [2022-03-15 13:50:48,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8998 states, 8997 states have (on average 2.7003445592975437) internal successors, (24295), 8997 states have internal predecessors, (24295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:48,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24295 transitions. [2022-03-15 13:50:48,451 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24295 transitions. Word has length 109 [2022-03-15 13:50:48,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:48,451 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24295 transitions. [2022-03-15 13:50:48,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:48,451 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24295 transitions. [2022-03-15 13:50:48,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:48,462 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:48,462 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:48,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-03-15 13:50:48,462 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:48,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:48,463 INFO L85 PathProgramCache]: Analyzing trace with hash -2057819140, now seen corresponding path program 108 times [2022-03-15 13:50:48,463 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:48,463 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947802768] [2022-03-15 13:50:48,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:48,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:48,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:48,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:48,568 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:48,568 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947802768] [2022-03-15 13:50:48,568 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947802768] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:48,568 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:48,568 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:48,568 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984402920] [2022-03-15 13:50:48,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:48,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:48,569 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:48,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:48,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:48,569 INFO L87 Difference]: Start difference. First operand 8998 states and 24295 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:49,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:49,194 INFO L93 Difference]: Finished difference Result 11371 states and 30602 transitions. [2022-03-15 13:50:49,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-15 13:50:49,194 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:49,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:49,211 INFO L225 Difference]: With dead ends: 11371 [2022-03-15 13:50:49,211 INFO L226 Difference]: Without dead ends: 10800 [2022-03-15 13:50:49,211 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 657 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=619, Invalid=2033, Unknown=0, NotChecked=0, Total=2652 [2022-03-15 13:50:49,211 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 353 mSDsluCounter, 3175 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 3423 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:49,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [353 Valid, 3423 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:50:49,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10800 states. [2022-03-15 13:50:49,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10800 to 9002. [2022-03-15 13:50:49,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.6999222308632373) internal successors, (24302), 9001 states have internal predecessors, (24302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:49,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24302 transitions. [2022-03-15 13:50:49,353 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24302 transitions. Word has length 109 [2022-03-15 13:50:49,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:49,353 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24302 transitions. [2022-03-15 13:50:49,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:49,353 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24302 transitions. [2022-03-15 13:50:49,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:49,365 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:49,365 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:49,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-03-15 13:50:49,365 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:49,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:49,366 INFO L85 PathProgramCache]: Analyzing trace with hash -268256686, now seen corresponding path program 109 times [2022-03-15 13:50:49,366 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:49,366 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347420762] [2022-03-15 13:50:49,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:49,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:49,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:49,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:49,497 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:49,497 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347420762] [2022-03-15 13:50:49,497 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347420762] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:49,497 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:49,497 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:49,497 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043021483] [2022-03-15 13:50:49,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:49,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:49,498 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:49,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:49,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:49,498 INFO L87 Difference]: Start difference. First operand 9002 states and 24302 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:50,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:50,061 INFO L93 Difference]: Finished difference Result 11254 states and 30295 transitions. [2022-03-15 13:50:50,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:50:50,061 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:50,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:50,079 INFO L225 Difference]: With dead ends: 11254 [2022-03-15 13:50:50,079 INFO L226 Difference]: Without dead ends: 10726 [2022-03-15 13:50:50,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=464, Invalid=1606, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:50:50,080 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 290 mSDsluCounter, 3289 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 3534 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:50,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 3534 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:50:50,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10726 states. [2022-03-15 13:50:50,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10726 to 9006. [2022-03-15 13:50:50,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.6995002776235424) internal successors, (24309), 9005 states have internal predecessors, (24309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:50,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24309 transitions. [2022-03-15 13:50:50,227 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24309 transitions. Word has length 109 [2022-03-15 13:50:50,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:50,227 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24309 transitions. [2022-03-15 13:50:50,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:50,227 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24309 transitions. [2022-03-15 13:50:50,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:50,238 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:50,238 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:50,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-03-15 13:50:50,238 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:50,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:50,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1518678268, now seen corresponding path program 110 times [2022-03-15 13:50:50,239 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:50,239 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113323310] [2022-03-15 13:50:50,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:50,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:50,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:50,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:50,348 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:50,348 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113323310] [2022-03-15 13:50:50,348 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113323310] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:50,348 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:50,348 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:50,348 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582568820] [2022-03-15 13:50:50,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:50,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:50,349 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:50,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:50,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:50,349 INFO L87 Difference]: Start difference. First operand 9006 states and 24309 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:50,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:50,770 INFO L93 Difference]: Finished difference Result 11106 states and 29909 transitions. [2022-03-15 13:50:50,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:50:50,770 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:50,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:50,786 INFO L225 Difference]: With dead ends: 11106 [2022-03-15 13:50:50,786 INFO L226 Difference]: Without dead ends: 10621 [2022-03-15 13:50:50,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=314, Invalid=1018, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:50:50,786 INFO L933 BasicCegarLoop]: 301 mSDtfsCounter, 227 mSDsluCounter, 2643 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 2897 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:50,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 2897 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:50,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10621 states. [2022-03-15 13:50:50,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10621 to 9010. [2022-03-15 13:50:50,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.699078699078699) internal successors, (24316), 9009 states have internal predecessors, (24316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:50,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24316 transitions. [2022-03-15 13:50:50,924 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24316 transitions. Word has length 109 [2022-03-15 13:50:50,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:50,924 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24316 transitions. [2022-03-15 13:50:50,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:50,924 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24316 transitions. [2022-03-15 13:50:50,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:50,937 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:50,937 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:50,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-03-15 13:50:50,937 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:50,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:50,937 INFO L85 PathProgramCache]: Analyzing trace with hash -2094668374, now seen corresponding path program 111 times [2022-03-15 13:50:50,937 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:50,937 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574822593] [2022-03-15 13:50:50,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:50,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:50,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:51,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:51,049 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:51,049 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574822593] [2022-03-15 13:50:51,049 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574822593] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:51,049 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:51,049 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:51,049 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584168174] [2022-03-15 13:50:51,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:51,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:51,049 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:51,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:51,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:51,050 INFO L87 Difference]: Start difference. First operand 9010 states and 24316 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:51,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:51,495 INFO L93 Difference]: Finished difference Result 11008 states and 29644 transitions. [2022-03-15 13:50:51,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:50:51,496 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:51,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:51,512 INFO L225 Difference]: With dead ends: 11008 [2022-03-15 13:50:51,513 INFO L226 Difference]: Without dead ends: 10506 [2022-03-15 13:50:51,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=313, Invalid=1019, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:50:51,513 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 203 mSDsluCounter, 3105 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 3353 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:51,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 3353 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:51,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10506 states. [2022-03-15 13:50:51,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10506 to 8990. [2022-03-15 13:50:51,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8990 states, 8989 states have (on average 2.7007453554344196) internal successors, (24277), 8989 states have internal predecessors, (24277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:51,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8990 states to 8990 states and 24277 transitions. [2022-03-15 13:50:51,688 INFO L78 Accepts]: Start accepts. Automaton has 8990 states and 24277 transitions. Word has length 109 [2022-03-15 13:50:51,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:51,688 INFO L470 AbstractCegarLoop]: Abstraction has 8990 states and 24277 transitions. [2022-03-15 13:50:51,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:51,688 INFO L276 IsEmpty]: Start isEmpty. Operand 8990 states and 24277 transitions. [2022-03-15 13:50:51,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:51,699 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:51,699 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:51,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-03-15 13:50:51,700 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:51,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:51,700 INFO L85 PathProgramCache]: Analyzing trace with hash 287389928, now seen corresponding path program 112 times [2022-03-15 13:50:51,700 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:51,700 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949190576] [2022-03-15 13:50:51,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:51,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:51,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:51,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:51,804 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:51,804 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949190576] [2022-03-15 13:50:51,804 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949190576] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:51,804 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:51,804 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:51,804 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103454144] [2022-03-15 13:50:51,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:51,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:51,804 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:51,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:51,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:51,804 INFO L87 Difference]: Start difference. First operand 8990 states and 24277 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:52,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:52,227 INFO L93 Difference]: Finished difference Result 11042 states and 29745 transitions. [2022-03-15 13:50:52,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:50:52,227 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:52,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:52,243 INFO L225 Difference]: With dead ends: 11042 [2022-03-15 13:50:52,244 INFO L226 Difference]: Without dead ends: 10557 [2022-03-15 13:50:52,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=299, Invalid=1033, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:50:52,244 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 245 mSDsluCounter, 2961 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 3206 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:52,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 3206 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:52,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10557 states. [2022-03-15 13:50:52,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10557 to 9010. [2022-03-15 13:50:52,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.7004107004107003) internal successors, (24328), 9009 states have internal predecessors, (24328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:52,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24328 transitions. [2022-03-15 13:50:52,384 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24328 transitions. Word has length 109 [2022-03-15 13:50:52,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:52,384 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24328 transitions. [2022-03-15 13:50:52,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:52,384 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24328 transitions. [2022-03-15 13:50:52,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:52,396 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:52,396 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:52,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-03-15 13:50:52,396 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:52,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:52,397 INFO L85 PathProgramCache]: Analyzing trace with hash 969010582, now seen corresponding path program 113 times [2022-03-15 13:50:52,397 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:52,397 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703771902] [2022-03-15 13:50:52,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:52,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:52,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:52,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:52,501 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:52,501 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703771902] [2022-03-15 13:50:52,501 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703771902] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:52,501 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:52,501 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:52,501 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040131889] [2022-03-15 13:50:52,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:52,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:52,501 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:52,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:52,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:52,502 INFO L87 Difference]: Start difference. First operand 9010 states and 24328 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:53,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:53,001 INFO L93 Difference]: Finished difference Result 11000 states and 29634 transitions. [2022-03-15 13:50:53,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:50:53,002 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:53,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:53,018 INFO L225 Difference]: With dead ends: 11000 [2022-03-15 13:50:53,018 INFO L226 Difference]: Without dead ends: 10514 [2022-03-15 13:50:53,018 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=352, Invalid=1130, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:50:53,018 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 224 mSDsluCounter, 2940 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 3195 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:53,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 3195 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:50:53,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10514 states. [2022-03-15 13:50:53,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10514 to 9006. [2022-03-15 13:50:53,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.700388672959467) internal successors, (24317), 9005 states have internal predecessors, (24317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:53,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24317 transitions. [2022-03-15 13:50:53,156 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24317 transitions. Word has length 109 [2022-03-15 13:50:53,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:53,156 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24317 transitions. [2022-03-15 13:50:53,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:53,157 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24317 transitions. [2022-03-15 13:50:53,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:53,168 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:53,168 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:53,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-03-15 13:50:53,168 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:53,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:53,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1669698138, now seen corresponding path program 114 times [2022-03-15 13:50:53,168 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:53,168 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484826825] [2022-03-15 13:50:53,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:53,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:53,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:53,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:53,282 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:53,282 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484826825] [2022-03-15 13:50:53,282 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484826825] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:53,282 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:53,282 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:53,282 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282029417] [2022-03-15 13:50:53,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:53,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:53,282 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:53,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:53,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:53,282 INFO L87 Difference]: Start difference. First operand 9006 states and 24317 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:53,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:53,877 INFO L93 Difference]: Finished difference Result 11068 states and 29801 transitions. [2022-03-15 13:50:53,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-15 13:50:53,877 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:53,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:53,895 INFO L225 Difference]: With dead ends: 11068 [2022-03-15 13:50:53,895 INFO L226 Difference]: Without dead ends: 10542 [2022-03-15 13:50:53,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=466, Invalid=1340, Unknown=0, NotChecked=0, Total=1806 [2022-03-15 13:50:53,895 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 293 mSDsluCounter, 2453 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 2717 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:53,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 2717 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:53,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10542 states. [2022-03-15 13:50:54,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10542 to 9002. [2022-03-15 13:50:54,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700366625930452) internal successors, (24306), 9001 states have internal predecessors, (24306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:54,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24306 transitions. [2022-03-15 13:50:54,047 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24306 transitions. Word has length 109 [2022-03-15 13:50:54,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:54,047 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24306 transitions. [2022-03-15 13:50:54,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:54,047 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24306 transitions. [2022-03-15 13:50:54,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:54,059 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:54,059 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:54,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-03-15 13:50:54,060 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:54,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:54,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1547581130, now seen corresponding path program 115 times [2022-03-15 13:50:54,060 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:54,060 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126500846] [2022-03-15 13:50:54,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:54,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:54,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:54,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:54,175 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:54,175 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126500846] [2022-03-15 13:50:54,175 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126500846] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:54,175 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:54,175 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:54,175 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9673180] [2022-03-15 13:50:54,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:54,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:54,175 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:54,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:54,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:54,176 INFO L87 Difference]: Start difference. First operand 9002 states and 24306 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:54,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:54,742 INFO L93 Difference]: Finished difference Result 11198 states and 30145 transitions. [2022-03-15 13:50:54,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:50:54,743 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:54,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:54,760 INFO L225 Difference]: With dead ends: 11198 [2022-03-15 13:50:54,760 INFO L226 Difference]: Without dead ends: 10670 [2022-03-15 13:50:54,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=439, Invalid=1453, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 13:50:54,761 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 343 mSDsluCounter, 2703 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 2952 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:54,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 2952 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:54,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10670 states. [2022-03-15 13:50:54,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10670 to 9006. [2022-03-15 13:50:54,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.6999444752915047) internal successors, (24313), 9005 states have internal predecessors, (24313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:54,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24313 transitions. [2022-03-15 13:50:54,907 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24313 transitions. Word has length 109 [2022-03-15 13:50:54,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:54,907 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24313 transitions. [2022-03-15 13:50:54,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:54,907 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24313 transitions. [2022-03-15 13:50:54,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:54,918 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:54,919 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:54,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-03-15 13:50:54,919 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:54,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:54,919 INFO L85 PathProgramCache]: Analyzing trace with hash 239353824, now seen corresponding path program 116 times [2022-03-15 13:50:54,919 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:54,919 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495306912] [2022-03-15 13:50:54,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:54,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:54,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:55,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:55,031 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:55,031 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495306912] [2022-03-15 13:50:55,031 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495306912] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:55,031 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:55,031 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:55,031 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137473692] [2022-03-15 13:50:55,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:55,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:55,032 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:55,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:55,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:55,032 INFO L87 Difference]: Start difference. First operand 9006 states and 24313 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:55,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:55,491 INFO L93 Difference]: Finished difference Result 11034 states and 29715 transitions. [2022-03-15 13:50:55,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:50:55,491 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:55,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:55,509 INFO L225 Difference]: With dead ends: 11034 [2022-03-15 13:50:55,509 INFO L226 Difference]: Without dead ends: 10549 [2022-03-15 13:50:55,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=314, Invalid=1018, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:50:55,510 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 268 mSDsluCounter, 2875 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 3120 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:55,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [268 Valid, 3120 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:55,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10549 states. [2022-03-15 13:50:55,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10549 to 9010. [2022-03-15 13:50:55,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.6995226995226997) internal successors, (24320), 9009 states have internal predecessors, (24320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:55,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24320 transitions. [2022-03-15 13:50:55,653 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24320 transitions. Word has length 109 [2022-03-15 13:50:55,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:55,653 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24320 transitions. [2022-03-15 13:50:55,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:55,654 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24320 transitions. [2022-03-15 13:50:55,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:55,665 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:55,665 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:55,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-03-15 13:50:55,665 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:55,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:55,666 INFO L85 PathProgramCache]: Analyzing trace with hash 920974478, now seen corresponding path program 117 times [2022-03-15 13:50:55,666 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:55,666 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307396335] [2022-03-15 13:50:55,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:55,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:55,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:55,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:55,781 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:55,781 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307396335] [2022-03-15 13:50:55,781 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307396335] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:55,781 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:55,782 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:55,782 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963391622] [2022-03-15 13:50:55,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:55,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:55,782 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:55,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:55,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:55,782 INFO L87 Difference]: Start difference. First operand 9010 states and 24320 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:56,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:56,262 INFO L93 Difference]: Finished difference Result 10968 states and 29538 transitions. [2022-03-15 13:50:56,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:50:56,263 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:56,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:56,278 INFO L225 Difference]: With dead ends: 10968 [2022-03-15 13:50:56,278 INFO L226 Difference]: Without dead ends: 10474 [2022-03-15 13:50:56,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=334, Invalid=1072, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:50:56,279 INFO L933 BasicCegarLoop]: 289 mSDtfsCounter, 253 mSDsluCounter, 3061 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 3303 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:56,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 3303 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:50:56,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10474 states. [2022-03-15 13:50:56,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10474 to 8998. [2022-03-15 13:50:56,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8998 states, 8997 states have (on average 2.7003445592975437) internal successors, (24295), 8997 states have internal predecessors, (24295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:56,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24295 transitions. [2022-03-15 13:50:56,415 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24295 transitions. Word has length 109 [2022-03-15 13:50:56,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:56,415 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24295 transitions. [2022-03-15 13:50:56,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:56,415 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24295 transitions. [2022-03-15 13:50:56,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:56,426 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:56,426 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:56,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-03-15 13:50:56,427 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:56,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:56,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1243908330, now seen corresponding path program 118 times [2022-03-15 13:50:56,427 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:56,427 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057485103] [2022-03-15 13:50:56,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:56,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:56,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:56,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:56,545 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:56,545 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057485103] [2022-03-15 13:50:56,545 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057485103] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:56,545 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:56,545 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:56,545 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662458647] [2022-03-15 13:50:56,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:56,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:56,545 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:56,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:56,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:56,546 INFO L87 Difference]: Start difference. First operand 8998 states and 24295 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:57,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:57,176 INFO L93 Difference]: Finished difference Result 11331 states and 30492 transitions. [2022-03-15 13:50:57,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-15 13:50:57,177 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:57,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:57,193 INFO L225 Difference]: With dead ends: 11331 [2022-03-15 13:50:57,193 INFO L226 Difference]: Without dead ends: 10760 [2022-03-15 13:50:57,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 697 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=625, Invalid=2131, Unknown=0, NotChecked=0, Total=2756 [2022-03-15 13:50:57,194 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 415 mSDsluCounter, 3129 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 3370 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:57,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [415 Valid, 3370 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:57,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10760 states. [2022-03-15 13:50:57,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10760 to 9002. [2022-03-15 13:50:57,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.6999222308632373) internal successors, (24302), 9001 states have internal predecessors, (24302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:57,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24302 transitions. [2022-03-15 13:50:57,363 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24302 transitions. Word has length 109 [2022-03-15 13:50:57,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:57,363 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24302 transitions. [2022-03-15 13:50:57,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:57,363 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24302 transitions. [2022-03-15 13:50:57,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:57,375 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:57,375 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:57,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-03-15 13:50:57,375 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:57,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:57,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1261496512, now seen corresponding path program 119 times [2022-03-15 13:50:57,376 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:57,376 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555625939] [2022-03-15 13:50:57,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:57,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:57,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:57,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:57,481 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:57,481 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555625939] [2022-03-15 13:50:57,481 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555625939] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:57,481 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:57,481 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:57,481 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952202986] [2022-03-15 13:50:57,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:57,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:57,481 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:57,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:57,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:57,482 INFO L87 Difference]: Start difference. First operand 9002 states and 24302 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:58,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:58,018 INFO L93 Difference]: Finished difference Result 11206 states and 30163 transitions. [2022-03-15 13:50:58,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:50:58,018 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:58,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:58,035 INFO L225 Difference]: With dead ends: 11206 [2022-03-15 13:50:58,035 INFO L226 Difference]: Without dead ends: 10678 [2022-03-15 13:50:58,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=454, Invalid=1616, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:50:58,035 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 344 mSDsluCounter, 3241 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 3478 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:58,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 3478 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:58,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10678 states. [2022-03-15 13:50:58,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10678 to 9006. [2022-03-15 13:50:58,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.6995002776235424) internal successors, (24309), 9005 states have internal predecessors, (24309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:58,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24309 transitions. [2022-03-15 13:50:58,181 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24309 transitions. Word has length 109 [2022-03-15 13:50:58,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:58,181 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24309 transitions. [2022-03-15 13:50:58,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:58,181 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24309 transitions. [2022-03-15 13:50:58,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:58,193 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:58,193 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:58,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-03-15 13:50:58,193 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:58,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:58,193 INFO L85 PathProgramCache]: Analyzing trace with hash 525438442, now seen corresponding path program 120 times [2022-03-15 13:50:58,194 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:58,194 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496446399] [2022-03-15 13:50:58,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:58,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:58,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:58,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:58,304 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:58,304 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496446399] [2022-03-15 13:50:58,304 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496446399] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:58,304 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:58,304 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:58,304 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717272248] [2022-03-15 13:50:58,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:58,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:58,305 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:58,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:58,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:58,305 INFO L87 Difference]: Start difference. First operand 9006 states and 24309 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:58,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:58,739 INFO L93 Difference]: Finished difference Result 11042 states and 29733 transitions. [2022-03-15 13:50:58,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:50:58,739 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:58,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:58,755 INFO L225 Difference]: With dead ends: 11042 [2022-03-15 13:50:58,755 INFO L226 Difference]: Without dead ends: 10557 [2022-03-15 13:50:58,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=309, Invalid=1023, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:50:58,756 INFO L933 BasicCegarLoop]: 293 mSDtfsCounter, 269 mSDsluCounter, 2942 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 3182 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:58,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 3182 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:58,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10557 states. [2022-03-15 13:50:58,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10557 to 9010. [2022-03-15 13:50:58,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.699078699078699) internal successors, (24316), 9009 states have internal predecessors, (24316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:58,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24316 transitions. [2022-03-15 13:50:58,893 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24316 transitions. Word has length 109 [2022-03-15 13:50:58,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:58,893 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24316 transitions. [2022-03-15 13:50:58,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:58,894 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24316 transitions. [2022-03-15 13:50:58,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:58,905 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:58,905 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:58,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-03-15 13:50:58,905 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:58,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:58,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1207059096, now seen corresponding path program 121 times [2022-03-15 13:50:58,905 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:58,905 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165011114] [2022-03-15 13:50:58,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:58,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:58,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:59,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:59,015 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:59,015 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165011114] [2022-03-15 13:50:59,015 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165011114] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:59,015 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:59,015 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:59,015 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007363214] [2022-03-15 13:50:59,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:59,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:59,016 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:59,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:59,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:59,016 INFO L87 Difference]: Start difference. First operand 9010 states and 24316 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:59,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:59,427 INFO L93 Difference]: Finished difference Result 10968 states and 29534 transitions. [2022-03-15 13:50:59,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:50:59,428 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:50:59,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:59,443 INFO L225 Difference]: With dead ends: 10968 [2022-03-15 13:50:59,444 INFO L226 Difference]: Without dead ends: 10470 [2022-03-15 13:50:59,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=318, Invalid=1014, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:50:59,444 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 253 mSDsluCounter, 3049 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 3287 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:59,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 3287 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:50:59,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10470 states. [2022-03-15 13:50:59,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10470 to 8994. [2022-03-15 13:50:59,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8994 states, 8993 states have (on average 2.7003224730345825) internal successors, (24284), 8993 states have internal predecessors, (24284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:59,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8994 states to 8994 states and 24284 transitions. [2022-03-15 13:50:59,578 INFO L78 Accepts]: Start accepts. Automaton has 8994 states and 24284 transitions. Word has length 109 [2022-03-15 13:50:59,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:59,578 INFO L470 AbstractCegarLoop]: Abstraction has 8994 states and 24284 transitions. [2022-03-15 13:50:59,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:50:59,578 INFO L276 IsEmpty]: Start isEmpty. Operand 8994 states and 24284 transitions. [2022-03-15 13:50:59,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:50:59,589 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:59,589 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:59,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-03-15 13:50:59,589 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:59,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:59,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1881550740, now seen corresponding path program 122 times [2022-03-15 13:50:59,590 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:59,590 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520944073] [2022-03-15 13:50:59,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:59,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:59,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:59,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:50:59,695 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:59,695 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520944073] [2022-03-15 13:50:59,695 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520944073] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:59,695 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:59,695 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:50:59,695 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237101749] [2022-03-15 13:50:59,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:59,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:50:59,695 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:59,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:50:59,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:50:59,696 INFO L87 Difference]: Start difference. First operand 8994 states and 24284 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:00,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:00,378 INFO L93 Difference]: Finished difference Result 11271 states and 30302 transitions. [2022-03-15 13:51:00,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-15 13:51:00,379 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:00,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:00,396 INFO L225 Difference]: With dead ends: 11271 [2022-03-15 13:51:00,396 INFO L226 Difference]: Without dead ends: 10657 [2022-03-15 13:51:00,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 946 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=805, Invalid=2617, Unknown=0, NotChecked=0, Total=3422 [2022-03-15 13:51:00,397 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 497 mSDsluCounter, 3171 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 3410 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:00,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [497 Valid, 3410 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:00,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10657 states. [2022-03-15 13:51:00,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10657 to 8998. [2022-03-15 13:51:00,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8998 states, 8997 states have (on average 2.699899966655552) internal successors, (24291), 8997 states have internal predecessors, (24291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:00,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24291 transitions. [2022-03-15 13:51:00,534 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24291 transitions. Word has length 109 [2022-03-15 13:51:00,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:00,534 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24291 transitions. [2022-03-15 13:51:00,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:00,534 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24291 transitions. [2022-03-15 13:51:00,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:00,545 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:00,545 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:00,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-03-15 13:51:00,545 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:00,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:00,545 INFO L85 PathProgramCache]: Analyzing trace with hash 824254586, now seen corresponding path program 123 times [2022-03-15 13:51:00,546 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:00,546 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918933836] [2022-03-15 13:51:00,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:00,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:00,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:00,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:00,653 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:00,653 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918933836] [2022-03-15 13:51:00,653 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918933836] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:00,653 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:00,653 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:00,653 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270537733] [2022-03-15 13:51:00,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:00,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:00,653 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:00,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:00,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:00,654 INFO L87 Difference]: Start difference. First operand 8998 states and 24291 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:01,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:01,285 INFO L93 Difference]: Finished difference Result 11139 states and 29960 transitions. [2022-03-15 13:51:01,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-15 13:51:01,286 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:01,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:01,302 INFO L225 Difference]: With dead ends: 11139 [2022-03-15 13:51:01,303 INFO L226 Difference]: Without dead ends: 10568 [2022-03-15 13:51:01,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 739 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=631, Invalid=2231, Unknown=0, NotChecked=0, Total=2862 [2022-03-15 13:51:01,303 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 429 mSDsluCounter, 3283 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 3512 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:01,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 3512 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:01,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10568 states. [2022-03-15 13:51:01,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10568 to 9002. [2022-03-15 13:51:01,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.6994778357960225) internal successors, (24298), 9001 states have internal predecessors, (24298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:01,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24298 transitions. [2022-03-15 13:51:01,445 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24298 transitions. Word has length 109 [2022-03-15 13:51:01,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:01,445 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24298 transitions. [2022-03-15 13:51:01,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:01,445 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24298 transitions. [2022-03-15 13:51:01,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:01,456 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:01,457 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:01,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-03-15 13:51:01,457 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:01,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:01,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1681150256, now seen corresponding path program 124 times [2022-03-15 13:51:01,457 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:01,457 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898339979] [2022-03-15 13:51:01,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:01,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:01,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:01,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:01,566 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:01,566 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898339979] [2022-03-15 13:51:01,566 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898339979] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:01,566 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:01,566 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:01,566 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39373884] [2022-03-15 13:51:01,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:01,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:01,566 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:01,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:01,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:01,567 INFO L87 Difference]: Start difference. First operand 9002 states and 24298 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:02,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:02,097 INFO L93 Difference]: Finished difference Result 11030 states and 29675 transitions. [2022-03-15 13:51:02,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:51:02,097 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:02,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:02,114 INFO L225 Difference]: With dead ends: 11030 [2022-03-15 13:51:02,114 INFO L226 Difference]: Without dead ends: 10502 [2022-03-15 13:51:02,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=444, Invalid=1626, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:51:02,114 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 365 mSDsluCounter, 2981 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 3213 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:02,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 3213 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:02,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10502 states. [2022-03-15 13:51:02,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10502 to 9006. [2022-03-15 13:51:02,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.69905607995558) internal successors, (24305), 9005 states have internal predecessors, (24305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:02,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24305 transitions. [2022-03-15 13:51:02,252 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24305 transitions. Word has length 109 [2022-03-15 13:51:02,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:02,252 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24305 transitions. [2022-03-15 13:51:02,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:02,253 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24305 transitions. [2022-03-15 13:51:02,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:02,263 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:02,263 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:02,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-03-15 13:51:02,263 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:02,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:02,264 INFO L85 PathProgramCache]: Analyzing trace with hash 105784698, now seen corresponding path program 125 times [2022-03-15 13:51:02,264 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:02,264 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725139595] [2022-03-15 13:51:02,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:02,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:02,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:02,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:02,371 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:02,371 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725139595] [2022-03-15 13:51:02,371 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725139595] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:02,371 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:02,371 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:02,371 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928160476] [2022-03-15 13:51:02,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:02,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:02,371 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:02,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:02,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:02,371 INFO L87 Difference]: Start difference. First operand 9006 states and 24305 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:02,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:02,785 INFO L93 Difference]: Finished difference Result 10898 states and 29333 transitions. [2022-03-15 13:51:02,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:51:02,785 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:02,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:02,802 INFO L225 Difference]: With dead ends: 10898 [2022-03-15 13:51:02,803 INFO L226 Difference]: Without dead ends: 10413 [2022-03-15 13:51:02,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=307, Invalid=1099, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:51:02,803 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 302 mSDsluCounter, 2870 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 3100 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:02,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 3100 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:02,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10413 states. [2022-03-15 13:51:02,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10413 to 9010. [2022-03-15 13:51:02,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.6986346986346987) internal successors, (24312), 9009 states have internal predecessors, (24312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:02,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24312 transitions. [2022-03-15 13:51:02,970 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24312 transitions. Word has length 109 [2022-03-15 13:51:02,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:02,970 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24312 transitions. [2022-03-15 13:51:02,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:02,971 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24312 transitions. [2022-03-15 13:51:02,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:02,982 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:02,982 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:02,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-03-15 13:51:02,982 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:02,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:02,983 INFO L85 PathProgramCache]: Analyzing trace with hash 787405352, now seen corresponding path program 126 times [2022-03-15 13:51:02,983 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:02,983 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242750418] [2022-03-15 13:51:02,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:02,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:02,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:03,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:03,087 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:03,087 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242750418] [2022-03-15 13:51:03,087 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242750418] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:03,087 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:03,087 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:03,087 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282387183] [2022-03-15 13:51:03,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:03,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:03,087 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:03,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:03,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:03,088 INFO L87 Difference]: Start difference. First operand 9010 states and 24312 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:03,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:03,473 INFO L93 Difference]: Finished difference Result 10728 states and 28870 transitions. [2022-03-15 13:51:03,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-15 13:51:03,473 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:03,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:03,493 INFO L225 Difference]: With dead ends: 10728 [2022-03-15 13:51:03,493 INFO L226 Difference]: Without dead ends: 10192 [2022-03-15 13:51:03,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=304, Invalid=956, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:51:03,493 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 232 mSDsluCounter, 2968 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 3196 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:03,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 3196 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:03,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10192 states. [2022-03-15 13:51:03,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10192 to 8956. [2022-03-15 13:51:03,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8956 states, 8955 states have (on average 2.7019542155220546) internal successors, (24196), 8955 states have internal predecessors, (24196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:03,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8956 states to 8956 states and 24196 transitions. [2022-03-15 13:51:03,632 INFO L78 Accepts]: Start accepts. Automaton has 8956 states and 24196 transitions. Word has length 109 [2022-03-15 13:51:03,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:03,632 INFO L470 AbstractCegarLoop]: Abstraction has 8956 states and 24196 transitions. [2022-03-15 13:51:03,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:03,632 INFO L276 IsEmpty]: Start isEmpty. Operand 8956 states and 24196 transitions. [2022-03-15 13:51:03,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:03,644 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:03,644 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:03,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-03-15 13:51:03,644 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:03,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:03,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1754725222, now seen corresponding path program 127 times [2022-03-15 13:51:03,644 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:03,645 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828911247] [2022-03-15 13:51:03,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:03,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:03,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:03,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:03,759 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:03,759 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828911247] [2022-03-15 13:51:03,759 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828911247] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:03,759 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:03,759 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:03,759 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469413228] [2022-03-15 13:51:03,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:03,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:03,759 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:03,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:03,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:03,760 INFO L87 Difference]: Start difference. First operand 8956 states and 24196 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:04,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:04,238 INFO L93 Difference]: Finished difference Result 12078 states and 32580 transitions. [2022-03-15 13:51:04,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:51:04,238 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:04,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:04,256 INFO L225 Difference]: With dead ends: 12078 [2022-03-15 13:51:04,256 INFO L226 Difference]: Without dead ends: 11593 [2022-03-15 13:51:04,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=310, Invalid=950, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:51:04,257 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 222 mSDsluCounter, 3177 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 3415 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:04,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 3415 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:04,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11593 states. [2022-03-15 13:51:04,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11593 to 8992. [2022-03-15 13:51:04,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7017017017017015) internal successors, (24291), 8991 states have internal predecessors, (24291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:04,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24291 transitions. [2022-03-15 13:51:04,401 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24291 transitions. Word has length 109 [2022-03-15 13:51:04,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:04,401 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24291 transitions. [2022-03-15 13:51:04,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:04,401 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24291 transitions. [2022-03-15 13:51:04,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:04,413 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:04,413 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:04,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-03-15 13:51:04,413 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:04,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:04,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1858621420, now seen corresponding path program 128 times [2022-03-15 13:51:04,414 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:04,414 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660720578] [2022-03-15 13:51:04,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:04,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:04,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:04,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:04,530 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:04,530 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660720578] [2022-03-15 13:51:04,530 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660720578] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:04,530 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:04,530 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:04,530 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160221693] [2022-03-15 13:51:04,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:04,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:04,531 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:04,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:04,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:04,531 INFO L87 Difference]: Start difference. First operand 8992 states and 24291 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:05,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:05,000 INFO L93 Difference]: Finished difference Result 12044 states and 32491 transitions. [2022-03-15 13:51:05,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:51:05,001 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:05,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:05,020 INFO L225 Difference]: With dead ends: 12044 [2022-03-15 13:51:05,021 INFO L226 Difference]: Without dead ends: 11558 [2022-03-15 13:51:05,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:51:05,021 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 215 mSDsluCounter, 3174 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 3424 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:05,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 3424 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:05,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11558 states. [2022-03-15 13:51:05,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11558 to 8988. [2022-03-15 13:51:05,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7016802047401804) internal successors, (24280), 8987 states have internal predecessors, (24280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:05,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24280 transitions. [2022-03-15 13:51:05,185 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24280 transitions. Word has length 109 [2022-03-15 13:51:05,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:05,185 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24280 transitions. [2022-03-15 13:51:05,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:05,185 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24280 transitions. [2022-03-15 13:51:05,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:05,197 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:05,197 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:05,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-03-15 13:51:05,198 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:05,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:05,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1157933864, now seen corresponding path program 129 times [2022-03-15 13:51:05,198 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:05,198 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344035000] [2022-03-15 13:51:05,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:05,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:05,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:05,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:05,312 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:05,312 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344035000] [2022-03-15 13:51:05,312 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344035000] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:05,312 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:05,312 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:05,312 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574399697] [2022-03-15 13:51:05,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:05,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:05,312 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:05,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:05,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:05,312 INFO L87 Difference]: Start difference. First operand 8988 states and 24280 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:05,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:05,920 INFO L93 Difference]: Finished difference Result 12080 states and 32586 transitions. [2022-03-15 13:51:05,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:51:05,920 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:05,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:05,939 INFO L225 Difference]: With dead ends: 12080 [2022-03-15 13:51:05,939 INFO L226 Difference]: Without dead ends: 11554 [2022-03-15 13:51:05,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=461, Invalid=1519, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 13:51:05,939 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 280 mSDsluCounter, 2812 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 3076 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:05,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 3076 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:05,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11554 states. [2022-03-15 13:51:06,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11554 to 8984. [2022-03-15 13:51:06,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7016586886340868) internal successors, (24269), 8983 states have internal predecessors, (24269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:06,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24269 transitions. [2022-03-15 13:51:06,093 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24269 transitions. Word has length 109 [2022-03-15 13:51:06,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:06,093 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24269 transitions. [2022-03-15 13:51:06,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:06,094 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24269 transitions. [2022-03-15 13:51:06,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:06,105 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:06,105 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:06,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-03-15 13:51:06,105 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:06,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:06,106 INFO L85 PathProgramCache]: Analyzing trace with hash 992956968, now seen corresponding path program 130 times [2022-03-15 13:51:06,106 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:06,106 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528700914] [2022-03-15 13:51:06,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:06,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:06,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:06,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:06,219 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:06,219 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528700914] [2022-03-15 13:51:06,219 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528700914] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:06,219 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:06,219 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:06,219 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671329960] [2022-03-15 13:51:06,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:06,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:06,220 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:06,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:06,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:06,220 INFO L87 Difference]: Start difference. First operand 8984 states and 24269 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:06,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:06,930 INFO L93 Difference]: Finished difference Result 12252 states and 33031 transitions. [2022-03-15 13:51:06,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-15 13:51:06,931 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:06,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:06,949 INFO L225 Difference]: With dead ends: 12252 [2022-03-15 13:51:06,949 INFO L226 Difference]: Without dead ends: 11686 [2022-03-15 13:51:06,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 649 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=616, Invalid=1934, Unknown=0, NotChecked=0, Total=2550 [2022-03-15 13:51:06,950 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 348 mSDsluCounter, 2851 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 3119 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:06,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [348 Valid, 3119 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:06,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11686 states. [2022-03-15 13:51:07,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11686 to 8980. [2022-03-15 13:51:07,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.701637153357835) internal successors, (24258), 8979 states have internal predecessors, (24258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:07,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24258 transitions. [2022-03-15 13:51:07,105 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24258 transitions. Word has length 109 [2022-03-15 13:51:07,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:07,105 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24258 transitions. [2022-03-15 13:51:07,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:07,105 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24258 transitions. [2022-03-15 13:51:07,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:07,117 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:07,117 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:07,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-03-15 13:51:07,117 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:07,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:07,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1509597844, now seen corresponding path program 131 times [2022-03-15 13:51:07,118 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:07,118 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933002390] [2022-03-15 13:51:07,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:07,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:07,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:07,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:07,231 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:07,231 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933002390] [2022-03-15 13:51:07,231 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933002390] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:07,231 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:07,231 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:07,231 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703494377] [2022-03-15 13:51:07,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:07,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:07,231 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:07,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:07,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:07,232 INFO L87 Difference]: Start difference. First operand 8980 states and 24258 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:07,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:07,697 INFO L93 Difference]: Finished difference Result 12154 states and 32785 transitions. [2022-03-15 13:51:07,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:51:07,697 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:07,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:07,717 INFO L225 Difference]: With dead ends: 12154 [2022-03-15 13:51:07,717 INFO L226 Difference]: Without dead ends: 11669 [2022-03-15 13:51:07,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=1006, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:51:07,718 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 235 mSDsluCounter, 2491 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 2744 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:07,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 2744 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:07,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11669 states. [2022-03-15 13:51:07,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11669 to 8992. [2022-03-15 13:51:07,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7012568123679235) internal successors, (24287), 8991 states have internal predecessors, (24287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:07,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24287 transitions. [2022-03-15 13:51:07,877 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24287 transitions. Word has length 109 [2022-03-15 13:51:07,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:07,877 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24287 transitions. [2022-03-15 13:51:07,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:07,877 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24287 transitions. [2022-03-15 13:51:07,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:07,889 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:07,890 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:07,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-03-15 13:51:07,890 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:07,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:07,890 INFO L85 PathProgramCache]: Analyzing trace with hash -827977190, now seen corresponding path program 132 times [2022-03-15 13:51:07,890 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:07,890 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599713217] [2022-03-15 13:51:07,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:07,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:07,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:08,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:08,001 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:08,001 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599713217] [2022-03-15 13:51:08,001 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599713217] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:08,001 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:08,001 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:08,002 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040620159] [2022-03-15 13:51:08,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:08,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:08,002 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:08,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:08,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:08,002 INFO L87 Difference]: Start difference. First operand 8992 states and 24287 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:08,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:08,500 INFO L93 Difference]: Finished difference Result 12112 states and 32674 transitions. [2022-03-15 13:51:08,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:51:08,501 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:08,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:08,518 INFO L225 Difference]: With dead ends: 12112 [2022-03-15 13:51:08,518 INFO L226 Difference]: Without dead ends: 11626 [2022-03-15 13:51:08,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=322, Invalid=1084, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:51:08,519 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 225 mSDsluCounter, 3006 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 3260 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:08,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 3260 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:08,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11626 states. [2022-03-15 13:51:08,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11626 to 8988. [2022-03-15 13:51:08,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7012351173917883) internal successors, (24276), 8987 states have internal predecessors, (24276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:08,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24276 transitions. [2022-03-15 13:51:08,655 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24276 transitions. Word has length 109 [2022-03-15 13:51:08,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:08,655 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24276 transitions. [2022-03-15 13:51:08,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:08,655 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24276 transitions. [2022-03-15 13:51:08,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:08,666 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:08,666 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:08,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-03-15 13:51:08,666 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:08,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:08,666 INFO L85 PathProgramCache]: Analyzing trace with hash -127289634, now seen corresponding path program 133 times [2022-03-15 13:51:08,666 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:08,666 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820614391] [2022-03-15 13:51:08,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:08,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:08,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:08,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:08,776 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:08,777 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820614391] [2022-03-15 13:51:08,777 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820614391] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:08,777 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:08,777 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:08,777 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447693618] [2022-03-15 13:51:08,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:08,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:08,777 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:08,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:08,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:08,777 INFO L87 Difference]: Start difference. First operand 8988 states and 24276 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:09,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:09,364 INFO L93 Difference]: Finished difference Result 12240 states and 33006 transitions. [2022-03-15 13:51:09,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:51:09,364 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:09,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:09,384 INFO L225 Difference]: With dead ends: 12240 [2022-03-15 13:51:09,384 INFO L226 Difference]: Without dead ends: 11714 [2022-03-15 13:51:09,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=449, Invalid=1443, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 13:51:09,385 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 286 mSDsluCounter, 3254 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 3511 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:09,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [286 Valid, 3511 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:09,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11714 states. [2022-03-15 13:51:09,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11714 to 8984. [2022-03-15 13:51:09,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7012134030947346) internal successors, (24265), 8983 states have internal predecessors, (24265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:09,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24265 transitions. [2022-03-15 13:51:09,538 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24265 transitions. Word has length 109 [2022-03-15 13:51:09,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:09,538 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24265 transitions. [2022-03-15 13:51:09,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:09,538 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24265 transitions. [2022-03-15 13:51:09,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:09,550 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:09,550 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:09,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-03-15 13:51:09,550 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:09,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:09,550 INFO L85 PathProgramCache]: Analyzing trace with hash 950398394, now seen corresponding path program 134 times [2022-03-15 13:51:09,550 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:09,550 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788911690] [2022-03-15 13:51:09,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:09,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:09,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:09,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:09,657 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:09,657 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788911690] [2022-03-15 13:51:09,657 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788911690] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:09,657 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:09,657 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:09,657 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046373802] [2022-03-15 13:51:09,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:09,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:09,657 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:09,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:09,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:09,658 INFO L87 Difference]: Start difference. First operand 8984 states and 24265 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:10,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:10,216 INFO L93 Difference]: Finished difference Result 12242 states and 32998 transitions. [2022-03-15 13:51:10,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-15 13:51:10,216 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:10,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:10,235 INFO L225 Difference]: With dead ends: 12242 [2022-03-15 13:51:10,235 INFO L226 Difference]: Without dead ends: 11714 [2022-03-15 13:51:10,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=479, Invalid=1501, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 13:51:10,236 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 293 mSDsluCounter, 3123 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 3366 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:10,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 3366 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:10,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11714 states. [2022-03-15 13:51:10,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11714 to 8988. [2022-03-15 13:51:10,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:10,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-03-15 13:51:10,398 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-03-15 13:51:10,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:10,398 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-03-15 13:51:10,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:10,398 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-03-15 13:51:10,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:10,410 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:10,410 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:10,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-03-15 13:51:10,410 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:10,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:10,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1557633948, now seen corresponding path program 135 times [2022-03-15 13:51:10,411 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:10,411 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347586326] [2022-03-15 13:51:10,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:10,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:10,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:10,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:10,516 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:10,516 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347586326] [2022-03-15 13:51:10,516 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347586326] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:10,516 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:10,516 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:10,516 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101646596] [2022-03-15 13:51:10,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:10,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:10,516 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:10,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:10,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:10,516 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:11,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:11,002 INFO L93 Difference]: Finished difference Result 12094 states and 32612 transitions. [2022-03-15 13:51:11,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:51:11,002 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:11,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:11,021 INFO L225 Difference]: With dead ends: 12094 [2022-03-15 13:51:11,022 INFO L226 Difference]: Without dead ends: 11609 [2022-03-15 13:51:11,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=347, Invalid=1135, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:51:11,022 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 236 mSDsluCounter, 3033 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 3279 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:11,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 3279 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:11,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11609 states. [2022-03-15 13:51:11,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11609 to 8992. [2022-03-15 13:51:11,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.700367033700367) internal successors, (24279), 8991 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:11,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-03-15 13:51:11,181 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-03-15 13:51:11,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:11,181 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-03-15 13:51:11,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:11,181 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-03-15 13:51:11,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:11,193 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:11,193 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:11,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-03-15 13:51:11,193 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:11,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:11,193 INFO L85 PathProgramCache]: Analyzing trace with hash -876013294, now seen corresponding path program 136 times [2022-03-15 13:51:11,194 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:11,194 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342888158] [2022-03-15 13:51:11,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:11,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:11,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:11,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:11,299 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:11,299 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342888158] [2022-03-15 13:51:11,299 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342888158] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:11,299 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:11,299 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:11,300 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287400243] [2022-03-15 13:51:11,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:11,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:11,300 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:11,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:11,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:11,300 INFO L87 Difference]: Start difference. First operand 8992 states and 24279 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:11,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:11,732 INFO L93 Difference]: Finished difference Result 12012 states and 32391 transitions. [2022-03-15 13:51:11,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:51:11,733 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:11,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:11,750 INFO L225 Difference]: With dead ends: 12012 [2022-03-15 13:51:11,750 INFO L226 Difference]: Without dead ends: 11514 [2022-03-15 13:51:11,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=304, Invalid=1028, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:51:11,751 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 220 mSDsluCounter, 2990 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 3241 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:11,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 3241 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:11,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11514 states. [2022-03-15 13:51:11,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11514 to 8976. [2022-03-15 13:51:11,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8976 states, 8975 states have (on average 2.7016155988857937) internal successors, (24247), 8975 states have internal predecessors, (24247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:11,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8976 states to 8976 states and 24247 transitions. [2022-03-15 13:51:11,889 INFO L78 Accepts]: Start accepts. Automaton has 8976 states and 24247 transitions. Word has length 109 [2022-03-15 13:51:11,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:11,889 INFO L470 AbstractCegarLoop]: Abstraction has 8976 states and 24247 transitions. [2022-03-15 13:51:11,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:11,889 INFO L276 IsEmpty]: Start isEmpty. Operand 8976 states and 24247 transitions. [2022-03-15 13:51:11,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:11,900 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:11,900 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:11,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-03-15 13:51:11,900 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:11,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:11,900 INFO L85 PathProgramCache]: Analyzing trace with hash -427653532, now seen corresponding path program 137 times [2022-03-15 13:51:11,900 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:11,900 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090990474] [2022-03-15 13:51:11,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:11,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:11,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:12,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:12,006 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:12,006 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090990474] [2022-03-15 13:51:12,006 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090990474] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:12,006 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:12,006 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:12,006 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689801067] [2022-03-15 13:51:12,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:12,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:12,006 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:12,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:12,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:12,007 INFO L87 Difference]: Start difference. First operand 8976 states and 24247 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:12,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:12,475 INFO L93 Difference]: Finished difference Result 12030 states and 32444 transitions. [2022-03-15 13:51:12,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:51:12,475 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:12,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:12,491 INFO L225 Difference]: With dead ends: 12030 [2022-03-15 13:51:12,491 INFO L226 Difference]: Without dead ends: 11545 [2022-03-15 13:51:12,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=324, Invalid=1082, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:51:12,492 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 233 mSDsluCounter, 3020 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 3262 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:12,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 3262 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:12,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11545 states. [2022-03-15 13:51:12,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11545 to 8992. [2022-03-15 13:51:12,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7012568123679235) internal successors, (24287), 8991 states have internal predecessors, (24287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:12,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24287 transitions. [2022-03-15 13:51:12,632 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24287 transitions. Word has length 109 [2022-03-15 13:51:12,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:12,632 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24287 transitions. [2022-03-15 13:51:12,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:12,632 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24287 transitions. [2022-03-15 13:51:12,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:12,643 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:12,643 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:12,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-03-15 13:51:12,643 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:12,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:12,643 INFO L85 PathProgramCache]: Analyzing trace with hash 253967122, now seen corresponding path program 138 times [2022-03-15 13:51:12,643 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:12,643 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32653972] [2022-03-15 13:51:12,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:12,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:12,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:12,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:12,749 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:12,749 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32653972] [2022-03-15 13:51:12,749 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32653972] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:12,749 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:12,749 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:12,749 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932357413] [2022-03-15 13:51:12,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:12,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:12,749 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:12,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:12,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:12,750 INFO L87 Difference]: Start difference. First operand 8992 states and 24287 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:13,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:13,238 INFO L93 Difference]: Finished difference Result 11988 states and 32333 transitions. [2022-03-15 13:51:13,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:51:13,238 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:13,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:13,258 INFO L225 Difference]: With dead ends: 11988 [2022-03-15 13:51:13,258 INFO L226 Difference]: Without dead ends: 11502 [2022-03-15 13:51:13,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=327, Invalid=1079, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:51:13,258 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 221 mSDsluCounter, 3002 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 3255 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:13,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 3255 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:13,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11502 states. [2022-03-15 13:51:13,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11502 to 8988. [2022-03-15 13:51:13,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7012351173917883) internal successors, (24276), 8987 states have internal predecessors, (24276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:13,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24276 transitions. [2022-03-15 13:51:13,414 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24276 transitions. Word has length 109 [2022-03-15 13:51:13,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:13,414 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24276 transitions. [2022-03-15 13:51:13,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:13,415 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24276 transitions. [2022-03-15 13:51:13,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:13,427 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:13,427 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:13,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-03-15 13:51:13,427 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:13,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:13,427 INFO L85 PathProgramCache]: Analyzing trace with hash 954654678, now seen corresponding path program 139 times [2022-03-15 13:51:13,427 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:13,427 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673771434] [2022-03-15 13:51:13,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:13,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:13,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:13,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:13,568 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:13,568 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673771434] [2022-03-15 13:51:13,568 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673771434] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:13,568 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:13,568 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:13,568 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799626455] [2022-03-15 13:51:13,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:13,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:13,568 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:13,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:13,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:13,569 INFO L87 Difference]: Start difference. First operand 8988 states and 24276 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:14,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:14,110 INFO L93 Difference]: Finished difference Result 12116 states and 32665 transitions. [2022-03-15 13:51:14,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-15 13:51:14,110 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:14,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:14,127 INFO L225 Difference]: With dead ends: 12116 [2022-03-15 13:51:14,127 INFO L226 Difference]: Without dead ends: 11590 [2022-03-15 13:51:14,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=438, Invalid=1368, Unknown=0, NotChecked=0, Total=1806 [2022-03-15 13:51:14,128 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 290 mSDsluCounter, 2798 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 3059 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:14,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 3059 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:14,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11590 states. [2022-03-15 13:51:14,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11590 to 8984. [2022-03-15 13:51:14,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7012134030947346) internal successors, (24265), 8983 states have internal predecessors, (24265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:14,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24265 transitions. [2022-03-15 13:51:14,261 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24265 transitions. Word has length 109 [2022-03-15 13:51:14,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:14,261 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24265 transitions. [2022-03-15 13:51:14,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:14,261 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24265 transitions. [2022-03-15 13:51:14,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:14,271 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:14,271 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:14,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-03-15 13:51:14,272 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:14,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:14,272 INFO L85 PathProgramCache]: Analyzing trace with hash 2032342706, now seen corresponding path program 140 times [2022-03-15 13:51:14,272 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:14,272 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112146837] [2022-03-15 13:51:14,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:14,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:14,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:14,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:14,376 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:14,376 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112146837] [2022-03-15 13:51:14,376 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112146837] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:14,376 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:14,376 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:14,376 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516426042] [2022-03-15 13:51:14,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:14,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:14,377 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:14,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:14,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:14,377 INFO L87 Difference]: Start difference. First operand 8984 states and 24265 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:14,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:14,947 INFO L93 Difference]: Finished difference Result 12198 states and 32877 transitions. [2022-03-15 13:51:14,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:51:14,948 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:14,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:14,966 INFO L225 Difference]: With dead ends: 12198 [2022-03-15 13:51:14,966 INFO L226 Difference]: Without dead ends: 11670 [2022-03-15 13:51:14,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=490, Invalid=1580, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:51:14,967 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 282 mSDsluCounter, 3295 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 3537 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:14,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 3537 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:14,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11670 states. [2022-03-15 13:51:15,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11670 to 8988. [2022-03-15 13:51:15,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:15,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-03-15 13:51:15,116 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-03-15 13:51:15,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:15,116 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-03-15 13:51:15,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:15,116 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-03-15 13:51:15,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:15,128 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:15,128 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:15,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-03-15 13:51:15,128 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:15,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:15,128 INFO L85 PathProgramCache]: Analyzing trace with hash -475689636, now seen corresponding path program 141 times [2022-03-15 13:51:15,128 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:15,128 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948573775] [2022-03-15 13:51:15,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:15,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:15,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:15,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:15,235 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:15,235 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948573775] [2022-03-15 13:51:15,236 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948573775] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:15,236 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:15,236 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:15,236 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429073408] [2022-03-15 13:51:15,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:15,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:15,236 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:15,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:15,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:15,236 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:15,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:15,717 INFO L93 Difference]: Finished difference Result 12034 states and 32447 transitions. [2022-03-15 13:51:15,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:51:15,717 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:15,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:15,740 INFO L225 Difference]: With dead ends: 12034 [2022-03-15 13:51:15,740 INFO L226 Difference]: Without dead ends: 11549 [2022-03-15 13:51:15,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:51:15,742 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 231 mSDsluCounter, 3036 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 3282 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:15,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 3282 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:15,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11549 states. [2022-03-15 13:51:15,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11549 to 8992. [2022-03-15 13:51:15,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.700367033700367) internal successors, (24279), 8991 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:15,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-03-15 13:51:15,894 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-03-15 13:51:15,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:15,894 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-03-15 13:51:15,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:15,894 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-03-15 13:51:15,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:15,906 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:15,906 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:15,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-03-15 13:51:15,906 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:15,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:15,907 INFO L85 PathProgramCache]: Analyzing trace with hash 205931018, now seen corresponding path program 142 times [2022-03-15 13:51:15,907 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:15,907 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019880638] [2022-03-15 13:51:15,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:15,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:15,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:16,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:16,016 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:16,016 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019880638] [2022-03-15 13:51:16,016 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019880638] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:16,016 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:16,016 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:16,017 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978696990] [2022-03-15 13:51:16,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:16,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:16,017 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:16,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:16,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:16,017 INFO L87 Difference]: Start difference. First operand 8992 states and 24279 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:16,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:16,452 INFO L93 Difference]: Finished difference Result 11968 states and 32270 transitions. [2022-03-15 13:51:16,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:51:16,452 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:16,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:16,469 INFO L225 Difference]: With dead ends: 11968 [2022-03-15 13:51:16,469 INFO L226 Difference]: Without dead ends: 11474 [2022-03-15 13:51:16,470 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=309, Invalid=1023, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:51:16,470 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 219 mSDsluCounter, 2996 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 3247 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:16,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 3247 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:16,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11474 states. [2022-03-15 13:51:16,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11474 to 8980. [2022-03-15 13:51:16,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.701191669450941) internal successors, (24254), 8979 states have internal predecessors, (24254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:16,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24254 transitions. [2022-03-15 13:51:16,604 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24254 transitions. Word has length 109 [2022-03-15 13:51:16,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:16,604 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24254 transitions. [2022-03-15 13:51:16,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:16,604 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24254 transitions. [2022-03-15 13:51:16,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:16,616 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:16,616 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:16,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-03-15 13:51:16,616 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:16,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:16,616 INFO L85 PathProgramCache]: Analyzing trace with hash 528864870, now seen corresponding path program 143 times [2022-03-15 13:51:16,617 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:16,617 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33558035] [2022-03-15 13:51:16,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:16,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:16,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:16,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:16,721 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:16,721 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33558035] [2022-03-15 13:51:16,721 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33558035] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:16,722 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:16,722 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:16,722 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612401735] [2022-03-15 13:51:16,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:16,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:16,722 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:16,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:16,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:16,722 INFO L87 Difference]: Start difference. First operand 8980 states and 24254 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:17,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:17,371 INFO L93 Difference]: Finished difference Result 12111 states and 32619 transitions. [2022-03-15 13:51:17,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-15 13:51:17,372 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:17,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:17,390 INFO L225 Difference]: With dead ends: 12111 [2022-03-15 13:51:17,390 INFO L226 Difference]: Without dead ends: 11540 [2022-03-15 13:51:17,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=654, Invalid=1998, Unknown=0, NotChecked=0, Total=2652 [2022-03-15 13:51:17,391 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 344 mSDsluCounter, 3210 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 3452 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:17,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 3452 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:17,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11540 states. [2022-03-15 13:51:17,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11540 to 8984. [2022-03-15 13:51:17,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7007681175553824) internal successors, (24261), 8983 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:17,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-03-15 13:51:17,540 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-03-15 13:51:17,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:17,540 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-03-15 13:51:17,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:17,541 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-03-15 13:51:17,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:17,553 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:17,553 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:17,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-03-15 13:51:17,553 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:17,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:17,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1976539972, now seen corresponding path program 144 times [2022-03-15 13:51:17,553 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:17,553 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494950133] [2022-03-15 13:51:17,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:17,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:17,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:17,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:17,661 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:17,661 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494950133] [2022-03-15 13:51:17,661 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494950133] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:17,661 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:17,661 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:17,662 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237622354] [2022-03-15 13:51:17,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:17,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:17,662 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:17,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:17,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:17,662 INFO L87 Difference]: Start difference. First operand 8984 states and 24261 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:18,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:18,265 INFO L93 Difference]: Finished difference Result 12098 states and 32598 transitions. [2022-03-15 13:51:18,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:51:18,266 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:18,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:18,284 INFO L225 Difference]: With dead ends: 12098 [2022-03-15 13:51:18,285 INFO L226 Difference]: Without dead ends: 11570 [2022-03-15 13:51:18,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=502, Invalid=1660, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 13:51:18,285 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 290 mSDsluCounter, 3146 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 3391 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:18,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 3391 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:18,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11570 states. [2022-03-15 13:51:18,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11570 to 8988. [2022-03-15 13:51:18,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:18,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-03-15 13:51:18,438 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-03-15 13:51:18,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:18,439 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-03-15 13:51:18,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:18,439 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-03-15 13:51:18,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:18,450 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:18,450 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:18,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-03-15 13:51:18,451 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:18,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:18,451 INFO L85 PathProgramCache]: Analyzing trace with hash -189605018, now seen corresponding path program 145 times [2022-03-15 13:51:18,451 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:18,451 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384892553] [2022-03-15 13:51:18,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:18,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:18,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:18,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:18,564 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:18,564 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384892553] [2022-03-15 13:51:18,564 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384892553] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:18,564 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:18,564 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:18,564 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528390854] [2022-03-15 13:51:18,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:18,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:18,564 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:18,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:18,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:18,564 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:19,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:19,088 INFO L93 Difference]: Finished difference Result 11934 states and 32168 transitions. [2022-03-15 13:51:19,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:51:19,088 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:19,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:19,106 INFO L225 Difference]: With dead ends: 11934 [2022-03-15 13:51:19,106 INFO L226 Difference]: Without dead ends: 11449 [2022-03-15 13:51:19,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=334, Invalid=1072, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:51:19,107 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 214 mSDsluCounter, 3220 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 3465 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:19,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 3465 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:19,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11449 states. [2022-03-15 13:51:19,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11449 to 8992. [2022-03-15 13:51:19,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.699922144366589) internal successors, (24275), 8991 states have internal predecessors, (24275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:19,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24275 transitions. [2022-03-15 13:51:19,278 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24275 transitions. Word has length 109 [2022-03-15 13:51:19,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:19,278 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24275 transitions. [2022-03-15 13:51:19,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:19,278 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24275 transitions. [2022-03-15 13:51:19,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:19,290 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:19,290 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:19,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-03-15 13:51:19,290 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:19,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:19,291 INFO L85 PathProgramCache]: Analyzing trace with hash 492015636, now seen corresponding path program 146 times [2022-03-15 13:51:19,291 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:19,291 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852660526] [2022-03-15 13:51:19,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:19,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:19,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:19,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:19,399 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:19,399 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852660526] [2022-03-15 13:51:19,399 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852660526] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:19,399 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:19,399 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:19,399 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882858074] [2022-03-15 13:51:19,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:19,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:19,399 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:19,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:19,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:19,399 INFO L87 Difference]: Start difference. First operand 8992 states and 24275 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:19,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:19,823 INFO L93 Difference]: Finished difference Result 11868 states and 31991 transitions. [2022-03-15 13:51:19,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:51:19,823 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:19,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:19,841 INFO L225 Difference]: With dead ends: 11868 [2022-03-15 13:51:19,842 INFO L226 Difference]: Without dead ends: 11366 [2022-03-15 13:51:19,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=293, Invalid=967, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:51:19,842 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 212 mSDsluCounter, 3012 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 3263 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:19,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 3263 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:19,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11366 states. [2022-03-15 13:51:19,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11366 to 8972. [2022-03-15 13:51:19,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8972 states, 8971 states have (on average 2.701594025192286) internal successors, (24236), 8971 states have internal predecessors, (24236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:20,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8972 states to 8972 states and 24236 transitions. [2022-03-15 13:51:20,004 INFO L78 Accepts]: Start accepts. Automaton has 8972 states and 24236 transitions. Word has length 109 [2022-03-15 13:51:20,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:20,004 INFO L470 AbstractCegarLoop]: Abstraction has 8972 states and 24236 transitions. [2022-03-15 13:51:20,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:20,005 INFO L276 IsEmpty]: Start isEmpty. Operand 8972 states and 24236 transitions. [2022-03-15 13:51:20,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:20,018 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:20,018 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:20,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-03-15 13:51:20,018 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:20,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:20,018 INFO L85 PathProgramCache]: Analyzing trace with hash -520821786, now seen corresponding path program 147 times [2022-03-15 13:51:20,018 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:20,018 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188369644] [2022-03-15 13:51:20,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:20,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:20,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:20,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:20,132 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:20,133 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188369644] [2022-03-15 13:51:20,133 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188369644] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:20,133 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:20,133 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:20,133 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399892525] [2022-03-15 13:51:20,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:20,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:20,133 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:20,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:20,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:20,133 INFO L87 Difference]: Start difference. First operand 8972 states and 24236 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:20,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:20,596 INFO L93 Difference]: Finished difference Result 11938 states and 32191 transitions. [2022-03-15 13:51:20,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:51:20,596 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:20,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:20,614 INFO L225 Difference]: With dead ends: 11938 [2022-03-15 13:51:20,615 INFO L226 Difference]: Without dead ends: 11453 [2022-03-15 13:51:20,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=315, Invalid=945, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:51:20,615 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 219 mSDsluCounter, 2921 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 3164 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:20,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 3164 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:20,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11453 states. [2022-03-15 13:51:20,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11453 to 8992. [2022-03-15 13:51:20,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7012568123679235) internal successors, (24287), 8991 states have internal predecessors, (24287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:20,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24287 transitions. [2022-03-15 13:51:20,767 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24287 transitions. Word has length 109 [2022-03-15 13:51:20,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:20,767 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24287 transitions. [2022-03-15 13:51:20,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:20,767 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24287 transitions. [2022-03-15 13:51:20,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:20,779 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:20,779 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:20,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-03-15 13:51:20,779 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:20,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:20,780 INFO L85 PathProgramCache]: Analyzing trace with hash 160798868, now seen corresponding path program 148 times [2022-03-15 13:51:20,780 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:20,780 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653660691] [2022-03-15 13:51:20,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:20,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:20,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:20,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:20,893 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:20,893 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653660691] [2022-03-15 13:51:20,893 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653660691] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:20,893 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:20,893 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:20,893 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561610085] [2022-03-15 13:51:20,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:20,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:20,893 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:20,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:20,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:20,894 INFO L87 Difference]: Start difference. First operand 8992 states and 24287 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:21,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:21,398 INFO L93 Difference]: Finished difference Result 11904 states and 32102 transitions. [2022-03-15 13:51:21,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:51:21,398 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:21,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:21,416 INFO L225 Difference]: With dead ends: 11904 [2022-03-15 13:51:21,416 INFO L226 Difference]: Without dead ends: 11418 [2022-03-15 13:51:21,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=312, Invalid=1094, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:51:21,416 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 212 mSDsluCounter, 3178 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 3428 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:21,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 3428 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:21,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11418 states. [2022-03-15 13:51:21,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11418 to 8988. [2022-03-15 13:51:21,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7012351173917883) internal successors, (24276), 8987 states have internal predecessors, (24276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:21,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24276 transitions. [2022-03-15 13:51:21,565 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24276 transitions. Word has length 109 [2022-03-15 13:51:21,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:21,565 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24276 transitions. [2022-03-15 13:51:21,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:21,565 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24276 transitions. [2022-03-15 13:51:21,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:21,577 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:21,577 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:21,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-03-15 13:51:21,577 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:21,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:21,577 INFO L85 PathProgramCache]: Analyzing trace with hash 861486424, now seen corresponding path program 149 times [2022-03-15 13:51:21,577 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:21,577 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499408079] [2022-03-15 13:51:21,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:21,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:21,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:21,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:21,698 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:21,698 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499408079] [2022-03-15 13:51:21,698 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499408079] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:21,698 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:21,698 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:21,698 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197277127] [2022-03-15 13:51:21,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:21,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:21,699 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:21,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:21,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:21,699 INFO L87 Difference]: Start difference. First operand 8988 states and 24276 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:22,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:22,304 INFO L93 Difference]: Finished difference Result 11940 states and 32197 transitions. [2022-03-15 13:51:22,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:51:22,304 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:22,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:22,323 INFO L225 Difference]: With dead ends: 11940 [2022-03-15 13:51:22,323 INFO L226 Difference]: Without dead ends: 11414 [2022-03-15 13:51:22,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=451, Invalid=1529, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 13:51:22,324 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 268 mSDsluCounter, 3268 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 3526 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:22,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [268 Valid, 3526 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:22,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11414 states. [2022-03-15 13:51:22,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11414 to 8984. [2022-03-15 13:51:22,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7012134030947346) internal successors, (24265), 8983 states have internal predecessors, (24265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:22,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24265 transitions. [2022-03-15 13:51:22,468 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24265 transitions. Word has length 109 [2022-03-15 13:51:22,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:22,469 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24265 transitions. [2022-03-15 13:51:22,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:22,469 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24265 transitions. [2022-03-15 13:51:22,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:22,480 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:22,480 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:22,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-03-15 13:51:22,480 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:22,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:22,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1282590040, now seen corresponding path program 150 times [2022-03-15 13:51:22,481 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:22,481 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683416419] [2022-03-15 13:51:22,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:22,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:22,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:22,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:22,589 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:22,589 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683416419] [2022-03-15 13:51:22,589 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683416419] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:22,589 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:22,589 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:22,589 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642167108] [2022-03-15 13:51:22,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:22,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:22,589 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:22,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:22,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:22,590 INFO L87 Difference]: Start difference. First operand 8984 states and 24265 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:23,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:23,252 INFO L93 Difference]: Finished difference Result 12168 states and 32796 transitions. [2022-03-15 13:51:23,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-15 13:51:23,252 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:23,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:23,271 INFO L225 Difference]: With dead ends: 12168 [2022-03-15 13:51:23,271 INFO L226 Difference]: Without dead ends: 11602 [2022-03-15 13:51:23,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 690 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=625, Invalid=2131, Unknown=0, NotChecked=0, Total=2756 [2022-03-15 13:51:23,271 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 347 mSDsluCounter, 3141 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 3406 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:23,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 3406 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:23,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11602 states. [2022-03-15 13:51:23,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11602 to 8980. [2022-03-15 13:51:23,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.701191669450941) internal successors, (24254), 8979 states have internal predecessors, (24254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:23,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24254 transitions. [2022-03-15 13:51:23,424 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24254 transitions. Word has length 109 [2022-03-15 13:51:23,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:23,424 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24254 transitions. [2022-03-15 13:51:23,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:23,424 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24254 transitions. [2022-03-15 13:51:23,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:23,436 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:23,436 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:23,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-03-15 13:51:23,436 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:23,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:23,436 INFO L85 PathProgramCache]: Analyzing trace with hash 509822444, now seen corresponding path program 151 times [2022-03-15 13:51:23,436 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:23,436 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201167080] [2022-03-15 13:51:23,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:23,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:23,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:23,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:23,556 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:23,556 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201167080] [2022-03-15 13:51:23,556 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201167080] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:23,556 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:23,556 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:23,556 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417624577] [2022-03-15 13:51:23,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:23,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:23,557 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:23,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:23,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:23,557 INFO L87 Difference]: Start difference. First operand 8980 states and 24254 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:24,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:24,048 INFO L93 Difference]: Finished difference Result 11914 states and 32121 transitions. [2022-03-15 13:51:24,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:51:24,049 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:24,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:24,068 INFO L225 Difference]: With dead ends: 11914 [2022-03-15 13:51:24,068 INFO L226 Difference]: Without dead ends: 11429 [2022-03-15 13:51:24,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=331, Invalid=1001, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:51:24,068 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 229 mSDsluCounter, 2493 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 2745 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:24,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 2745 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:24,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11429 states. [2022-03-15 13:51:24,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11429 to 8992. [2022-03-15 13:51:24,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7008119230341454) internal successors, (24283), 8991 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:24,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-03-15 13:51:24,224 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-03-15 13:51:24,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:24,224 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-03-15 13:51:24,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:24,224 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-03-15 13:51:24,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:24,236 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:24,236 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:24,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-03-15 13:51:24,236 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:24,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:24,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1191443098, now seen corresponding path program 152 times [2022-03-15 13:51:24,237 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:24,237 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6243193] [2022-03-15 13:51:24,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:24,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:24,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:24,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:24,345 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:24,345 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6243193] [2022-03-15 13:51:24,345 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6243193] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:24,345 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:24,345 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:24,345 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548626528] [2022-03-15 13:51:24,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:24,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:24,345 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:24,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:24,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:24,346 INFO L87 Difference]: Start difference. First operand 8992 states and 24283 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:24,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:24,825 INFO L93 Difference]: Finished difference Result 11872 states and 32010 transitions. [2022-03-15 13:51:24,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:51:24,825 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:24,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:24,883 INFO L225 Difference]: With dead ends: 11872 [2022-03-15 13:51:24,883 INFO L226 Difference]: Without dead ends: 11386 [2022-03-15 13:51:24,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:51:24,884 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 219 mSDsluCounter, 3003 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 3256 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:24,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 3256 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:24,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11386 states. [2022-03-15 13:51:24,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11386 to 8988. [2022-03-15 13:51:24,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:25,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-03-15 13:51:25,018 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-03-15 13:51:25,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:25,018 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-03-15 13:51:25,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:25,018 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-03-15 13:51:25,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:25,032 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:25,032 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:25,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-03-15 13:51:25,032 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:25,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:25,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1892130654, now seen corresponding path program 153 times [2022-03-15 13:51:25,033 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:25,033 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568199958] [2022-03-15 13:51:25,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:25,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:25,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:25,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:25,145 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:25,145 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568199958] [2022-03-15 13:51:25,145 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568199958] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:25,145 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:25,145 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:25,145 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457309965] [2022-03-15 13:51:25,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:25,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:25,146 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:25,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:25,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:25,146 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:25,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:25,698 INFO L93 Difference]: Finished difference Result 12040 states and 32452 transitions. [2022-03-15 13:51:25,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:51:25,698 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:25,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:25,716 INFO L225 Difference]: With dead ends: 12040 [2022-03-15 13:51:25,716 INFO L226 Difference]: Without dead ends: 11514 [2022-03-15 13:51:25,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=439, Invalid=1453, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 13:51:25,717 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 290 mSDsluCounter, 2531 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 2797 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:25,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 2797 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:25,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11514 states. [2022-03-15 13:51:25,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11514 to 8984. [2022-03-15 13:51:25,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7007681175553824) internal successors, (24261), 8983 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:25,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-03-15 13:51:25,868 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-03-15 13:51:25,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:25,868 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-03-15 13:51:25,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:25,869 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-03-15 13:51:25,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:25,881 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:25,881 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:25,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-03-15 13:51:25,881 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:25,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:25,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1325148614, now seen corresponding path program 154 times [2022-03-15 13:51:25,881 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:25,881 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220104251] [2022-03-15 13:51:25,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:25,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:25,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:25,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:25,994 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:25,994 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220104251] [2022-03-15 13:51:25,994 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220104251] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:25,994 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:25,994 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:25,994 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102234044] [2022-03-15 13:51:25,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:25,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:25,994 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:25,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:25,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:25,995 INFO L87 Difference]: Start difference. First operand 8984 states and 24261 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:26,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:26,543 INFO L93 Difference]: Finished difference Result 11958 states and 32213 transitions. [2022-03-15 13:51:26,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-15 13:51:26,544 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:26,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:26,562 INFO L225 Difference]: With dead ends: 11958 [2022-03-15 13:51:26,562 INFO L226 Difference]: Without dead ends: 11430 [2022-03-15 13:51:26,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=469, Invalid=1423, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 13:51:26,562 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 276 mSDsluCounter, 3279 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 3518 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:26,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [276 Valid, 3518 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:26,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11430 states. [2022-03-15 13:51:26,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11430 to 8988. [2022-03-15 13:51:26,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:26,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-03-15 13:51:26,704 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-03-15 13:51:26,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:26,704 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-03-15 13:51:26,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:26,704 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-03-15 13:51:26,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:26,715 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:26,715 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:26,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-03-15 13:51:26,715 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:26,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:26,715 INFO L85 PathProgramCache]: Analyzing trace with hash 461786340, now seen corresponding path program 155 times [2022-03-15 13:51:26,715 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:26,715 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928512420] [2022-03-15 13:51:26,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:26,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:26,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:26,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:26,832 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:26,832 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928512420] [2022-03-15 13:51:26,832 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928512420] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:26,833 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:26,833 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:26,833 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307927991] [2022-03-15 13:51:26,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:26,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:26,833 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:26,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:26,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:26,833 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:27,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:27,329 INFO L93 Difference]: Finished difference Result 11858 states and 31959 transitions. [2022-03-15 13:51:27,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:51:27,329 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:27,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:27,347 INFO L225 Difference]: With dead ends: 11858 [2022-03-15 13:51:27,347 INFO L226 Difference]: Without dead ends: 11373 [2022-03-15 13:51:27,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=349, Invalid=1057, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:51:27,348 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 221 mSDsluCounter, 2932 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 3180 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:27,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 3180 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:27,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11373 states. [2022-03-15 13:51:27,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11373 to 8992. [2022-03-15 13:51:27,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.699922144366589) internal successors, (24275), 8991 states have internal predecessors, (24275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:27,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24275 transitions. [2022-03-15 13:51:27,497 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24275 transitions. Word has length 109 [2022-03-15 13:51:27,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:27,497 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24275 transitions. [2022-03-15 13:51:27,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:27,497 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24275 transitions. [2022-03-15 13:51:27,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:27,509 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:27,509 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:27,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-03-15 13:51:27,509 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:27,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:27,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1143406994, now seen corresponding path program 156 times [2022-03-15 13:51:27,510 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:27,510 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517140521] [2022-03-15 13:51:27,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:27,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:27,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:27,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:27,615 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:27,615 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517140521] [2022-03-15 13:51:27,616 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517140521] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:27,616 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:27,616 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:27,616 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176551996] [2022-03-15 13:51:27,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:27,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:27,616 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:27,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:27,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:27,616 INFO L87 Difference]: Start difference. First operand 8992 states and 24275 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:28,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:28,060 INFO L93 Difference]: Finished difference Result 11808 states and 31826 transitions. [2022-03-15 13:51:28,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:51:28,060 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:28,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:28,078 INFO L225 Difference]: With dead ends: 11808 [2022-03-15 13:51:28,078 INFO L226 Difference]: Without dead ends: 11310 [2022-03-15 13:51:28,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=299, Invalid=1033, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:51:28,079 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 212 mSDsluCounter, 3013 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 3267 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:28,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 3267 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:28,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11310 states. [2022-03-15 13:51:28,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11310 to 8976. [2022-03-15 13:51:28,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8976 states, 8975 states have (on average 2.7011699164345404) internal successors, (24243), 8975 states have internal predecessors, (24243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:28,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8976 states to 8976 states and 24243 transitions. [2022-03-15 13:51:28,220 INFO L78 Accepts]: Start accepts. Automaton has 8976 states and 24243 transitions. Word has length 109 [2022-03-15 13:51:28,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:28,220 INFO L470 AbstractCegarLoop]: Abstraction has 8976 states and 24243 transitions. [2022-03-15 13:51:28,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:28,221 INFO L276 IsEmpty]: Start isEmpty. Operand 8976 states and 24243 transitions. [2022-03-15 13:51:28,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:28,232 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:28,232 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:28,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-03-15 13:51:28,232 INFO L402 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:28,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:28,232 INFO L85 PathProgramCache]: Analyzing trace with hash 957822372, now seen corresponding path program 157 times [2022-03-15 13:51:28,232 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:28,232 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750144861] [2022-03-15 13:51:28,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:28,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:28,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:28,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:28,344 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:28,344 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750144861] [2022-03-15 13:51:28,344 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750144861] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:28,344 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:28,344 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:28,344 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655043398] [2022-03-15 13:51:28,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:28,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:28,344 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:28,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:28,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:28,345 INFO L87 Difference]: Start difference. First operand 8976 states and 24243 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:28,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:28,797 INFO L93 Difference]: Finished difference Result 11750 states and 31670 transitions. [2022-03-15 13:51:28,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-15 13:51:28,798 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:28,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:28,816 INFO L225 Difference]: With dead ends: 11750 [2022-03-15 13:51:28,817 INFO L226 Difference]: Without dead ends: 11265 [2022-03-15 13:51:28,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=304, Invalid=956, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:51:28,817 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 214 mSDsluCounter, 3181 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 3417 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:28,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 3417 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:28,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11265 states. [2022-03-15 13:51:28,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11265 to 8992. [2022-03-15 13:51:28,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7008119230341454) internal successors, (24283), 8991 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:28,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-03-15 13:51:28,954 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-03-15 13:51:28,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:28,955 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-03-15 13:51:28,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:28,955 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-03-15 13:51:28,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:28,967 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:28,967 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:28,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-03-15 13:51:28,967 INFO L402 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:28,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:28,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1639443026, now seen corresponding path program 158 times [2022-03-15 13:51:28,967 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:28,967 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731589201] [2022-03-15 13:51:28,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:28,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:28,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:29,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:29,090 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:29,090 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731589201] [2022-03-15 13:51:29,090 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731589201] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:29,090 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:29,090 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:29,090 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423483367] [2022-03-15 13:51:29,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:29,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:29,090 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:29,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:29,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:29,091 INFO L87 Difference]: Start difference. First operand 8992 states and 24283 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:29,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:29,560 INFO L93 Difference]: Finished difference Result 11720 states and 31592 transitions. [2022-03-15 13:51:29,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:51:29,560 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:29,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:29,578 INFO L225 Difference]: With dead ends: 11720 [2022-03-15 13:51:29,578 INFO L226 Difference]: Without dead ends: 11234 [2022-03-15 13:51:29,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=307, Invalid=1099, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:51:29,579 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 217 mSDsluCounter, 3014 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 3265 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:29,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [217 Valid, 3265 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:29,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11234 states. [2022-03-15 13:51:29,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11234 to 8988. [2022-03-15 13:51:29,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:29,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-03-15 13:51:29,725 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-03-15 13:51:29,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:29,725 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-03-15 13:51:29,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:29,725 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-03-15 13:51:29,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:29,737 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:29,737 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:29,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-03-15 13:51:29,737 INFO L402 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:29,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:29,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1954836714, now seen corresponding path program 159 times [2022-03-15 13:51:29,737 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:29,737 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656774669] [2022-03-15 13:51:29,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:29,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:29,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:29,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:29,848 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:29,848 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656774669] [2022-03-15 13:51:29,849 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656774669] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:29,849 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:29,849 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:29,849 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779767659] [2022-03-15 13:51:29,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:29,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:29,849 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:29,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:29,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:29,849 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:30,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:30,435 INFO L93 Difference]: Finished difference Result 11756 states and 31687 transitions. [2022-03-15 13:51:30,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:51:30,435 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:30,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:30,451 INFO L225 Difference]: With dead ends: 11756 [2022-03-15 13:51:30,452 INFO L226 Difference]: Without dead ends: 11230 [2022-03-15 13:51:30,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=441, Invalid=1539, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 13:51:30,452 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 264 mSDsluCounter, 2731 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 2996 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:30,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [264 Valid, 2996 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:30,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11230 states. [2022-03-15 13:51:30,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11230 to 8984. [2022-03-15 13:51:30,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7007681175553824) internal successors, (24261), 8983 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:30,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-03-15 13:51:30,590 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-03-15 13:51:30,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:30,590 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-03-15 13:51:30,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:30,590 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-03-15 13:51:30,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:30,602 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:30,602 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:30,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-03-15 13:51:30,602 INFO L402 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:30,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:30,603 INFO L85 PathProgramCache]: Analyzing trace with hash 196054118, now seen corresponding path program 160 times [2022-03-15 13:51:30,603 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:30,603 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488724102] [2022-03-15 13:51:30,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:30,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:30,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:30,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:30,724 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:30,724 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488724102] [2022-03-15 13:51:30,724 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488724102] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:30,724 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:30,724 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:30,724 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401980417] [2022-03-15 13:51:30,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:30,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:30,725 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:30,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:30,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:30,725 INFO L87 Difference]: Start difference. First operand 8984 states and 24261 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:31,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:31,385 INFO L93 Difference]: Finished difference Result 11792 states and 31782 transitions. [2022-03-15 13:51:31,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-15 13:51:31,386 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:31,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:31,404 INFO L225 Difference]: With dead ends: 11792 [2022-03-15 13:51:31,404 INFO L226 Difference]: Without dead ends: 11226 [2022-03-15 13:51:31,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 732 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=631, Invalid=2231, Unknown=0, NotChecked=0, Total=2862 [2022-03-15 13:51:31,405 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 320 mSDsluCounter, 3172 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 3439 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:31,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 3439 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:31,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11226 states. [2022-03-15 13:51:31,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11226 to 8980. [2022-03-15 13:51:31,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.7007461855440473) internal successors, (24250), 8979 states have internal predecessors, (24250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:31,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24250 transitions. [2022-03-15 13:51:31,563 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24250 transitions. Word has length 109 [2022-03-15 13:51:31,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:31,563 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24250 transitions. [2022-03-15 13:51:31,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:31,564 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24250 transitions. [2022-03-15 13:51:31,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:31,576 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:31,576 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:31,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-03-15 13:51:31,576 INFO L402 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:31,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:31,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1160245466, now seen corresponding path program 161 times [2022-03-15 13:51:31,577 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:31,577 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7165380] [2022-03-15 13:51:31,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:31,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:31,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:31,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:31,701 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:31,701 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7165380] [2022-03-15 13:51:31,701 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7165380] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:31,701 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:31,701 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:31,701 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323202233] [2022-03-15 13:51:31,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:31,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:31,702 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:31,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:31,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:31,702 INFO L87 Difference]: Start difference. First operand 8980 states and 24250 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:32,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:32,406 INFO L93 Difference]: Finished difference Result 11976 states and 32252 transitions. [2022-03-15 13:51:32,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-15 13:51:32,406 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:32,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:32,424 INFO L225 Difference]: With dead ends: 11976 [2022-03-15 13:51:32,424 INFO L226 Difference]: Without dead ends: 11362 [2022-03-15 13:51:32,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 935 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=805, Invalid=2617, Unknown=0, NotChecked=0, Total=3422 [2022-03-15 13:51:32,425 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 405 mSDsluCounter, 3183 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 3452 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:32,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [405 Valid, 3452 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:32,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11362 states. [2022-03-15 13:51:32,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11362 to 8968. [2022-03-15 13:51:32,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8968 states, 8967 states have (on average 2.7015724322515893) internal successors, (24225), 8967 states have internal predecessors, (24225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:32,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8968 states to 8968 states and 24225 transitions. [2022-03-15 13:51:32,571 INFO L78 Accepts]: Start accepts. Automaton has 8968 states and 24225 transitions. Word has length 109 [2022-03-15 13:51:32,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:32,572 INFO L470 AbstractCegarLoop]: Abstraction has 8968 states and 24225 transitions. [2022-03-15 13:51:32,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:32,572 INFO L276 IsEmpty]: Start isEmpty. Operand 8968 states and 24225 transitions. [2022-03-15 13:51:32,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:32,583 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:32,583 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:32,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-03-15 13:51:32,583 INFO L402 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:32,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:32,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1809823296, now seen corresponding path program 162 times [2022-03-15 13:51:32,584 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:32,584 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689067996] [2022-03-15 13:51:32,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:32,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:32,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:32,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:32,712 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:32,712 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689067996] [2022-03-15 13:51:32,712 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689067996] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:32,713 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:32,713 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:32,713 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946892873] [2022-03-15 13:51:32,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:32,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:32,713 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:32,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:32,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:32,713 INFO L87 Difference]: Start difference. First operand 8968 states and 24225 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:33,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:33,231 INFO L93 Difference]: Finished difference Result 11686 states and 31498 transitions. [2022-03-15 13:51:33,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:51:33,231 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:33,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:33,251 INFO L225 Difference]: With dead ends: 11686 [2022-03-15 13:51:33,251 INFO L226 Difference]: Without dead ends: 11201 [2022-03-15 13:51:33,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=306, Invalid=954, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:51:33,251 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 214 mSDsluCounter, 2498 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 2749 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:33,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 2749 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:33,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11201 states. [2022-03-15 13:51:33,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11201 to 8992. [2022-03-15 13:51:33,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7012568123679235) internal successors, (24287), 8991 states have internal predecessors, (24287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:33,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24287 transitions. [2022-03-15 13:51:33,406 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24287 transitions. Word has length 109 [2022-03-15 13:51:33,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:33,406 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24287 transitions. [2022-03-15 13:51:33,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:33,406 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24287 transitions. [2022-03-15 13:51:33,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:33,418 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:33,418 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:33,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-03-15 13:51:33,418 INFO L402 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:33,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:33,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1128202642, now seen corresponding path program 163 times [2022-03-15 13:51:33,418 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:33,418 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914988169] [2022-03-15 13:51:33,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:33,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:33,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:33,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:33,526 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:33,526 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914988169] [2022-03-15 13:51:33,526 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914988169] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:33,526 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:33,526 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:33,526 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931574399] [2022-03-15 13:51:33,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:33,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:33,526 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:33,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:33,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:33,527 INFO L87 Difference]: Start difference. First operand 8992 states and 24287 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:34,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:34,007 INFO L93 Difference]: Finished difference Result 11652 states and 31409 transitions. [2022-03-15 13:51:34,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:51:34,007 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:34,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:34,025 INFO L225 Difference]: With dead ends: 11652 [2022-03-15 13:51:34,025 INFO L226 Difference]: Without dead ends: 11166 [2022-03-15 13:51:34,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=323, Invalid=1083, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:51:34,026 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 204 mSDsluCounter, 3013 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 3266 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:34,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [204 Valid, 3266 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:34,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11166 states. [2022-03-15 13:51:34,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11166 to 8988. [2022-03-15 13:51:34,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7012351173917883) internal successors, (24276), 8987 states have internal predecessors, (24276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:34,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24276 transitions. [2022-03-15 13:51:34,172 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24276 transitions. Word has length 109 [2022-03-15 13:51:34,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:34,172 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24276 transitions. [2022-03-15 13:51:34,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:34,172 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24276 transitions. [2022-03-15 13:51:34,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:34,183 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:34,183 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:34,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-03-15 13:51:34,183 INFO L402 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:34,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:34,184 INFO L85 PathProgramCache]: Analyzing trace with hash -427515086, now seen corresponding path program 164 times [2022-03-15 13:51:34,184 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:34,184 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850558253] [2022-03-15 13:51:34,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:34,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:34,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:34,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:34,325 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:34,325 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850558253] [2022-03-15 13:51:34,325 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850558253] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:34,325 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:34,325 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:34,326 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467807305] [2022-03-15 13:51:34,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:34,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:34,326 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:34,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:34,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:34,326 INFO L87 Difference]: Start difference. First operand 8988 states and 24276 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:34,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:34,930 INFO L93 Difference]: Finished difference Result 11688 states and 31504 transitions. [2022-03-15 13:51:34,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:51:34,931 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:34,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:34,947 INFO L225 Difference]: With dead ends: 11688 [2022-03-15 13:51:34,947 INFO L226 Difference]: Without dead ends: 11162 [2022-03-15 13:51:34,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=472, Invalid=1508, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 13:51:34,948 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 262 mSDsluCounter, 2824 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 3089 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:34,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 3089 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:34,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11162 states. [2022-03-15 13:51:35,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11162 to 8984. [2022-03-15 13:51:35,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7012134030947346) internal successors, (24265), 8983 states have internal predecessors, (24265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:35,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24265 transitions. [2022-03-15 13:51:35,075 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24265 transitions. Word has length 109 [2022-03-15 13:51:35,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:35,076 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24265 transitions. [2022-03-15 13:51:35,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:35,076 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24265 transitions. [2022-03-15 13:51:35,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:35,086 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:35,086 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:35,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-03-15 13:51:35,086 INFO L402 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:35,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:35,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1723375746, now seen corresponding path program 165 times [2022-03-15 13:51:35,086 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:35,086 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048346678] [2022-03-15 13:51:35,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:35,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:35,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:35,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:35,188 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:35,188 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048346678] [2022-03-15 13:51:35,188 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048346678] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:35,188 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:35,189 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:35,189 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340941908] [2022-03-15 13:51:35,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:35,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:35,189 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:35,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:35,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:35,189 INFO L87 Difference]: Start difference. First operand 8984 states and 24265 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:35,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:35,795 INFO L93 Difference]: Finished difference Result 11832 states and 31872 transitions. [2022-03-15 13:51:35,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-15 13:51:35,795 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:35,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:35,814 INFO L225 Difference]: With dead ends: 11832 [2022-03-15 13:51:35,814 INFO L226 Difference]: Without dead ends: 11266 [2022-03-15 13:51:35,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=614, Invalid=1936, Unknown=0, NotChecked=0, Total=2550 [2022-03-15 13:51:35,815 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 332 mSDsluCounter, 3122 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 3385 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:35,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [332 Valid, 3385 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:35,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11266 states. [2022-03-15 13:51:35,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11266 to 8980. [2022-03-15 13:51:36,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.701191669450941) internal successors, (24254), 8979 states have internal predecessors, (24254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:36,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24254 transitions. [2022-03-15 13:51:36,022 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24254 transitions. Word has length 109 [2022-03-15 13:51:36,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:36,022 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24254 transitions. [2022-03-15 13:51:36,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:36,022 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24254 transitions. [2022-03-15 13:51:36,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:36,033 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:36,034 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:36,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-03-15 13:51:36,034 INFO L402 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:36,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:36,034 INFO L85 PathProgramCache]: Analyzing trace with hash -779179066, now seen corresponding path program 166 times [2022-03-15 13:51:36,034 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:36,034 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196729740] [2022-03-15 13:51:36,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:36,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:36,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:36,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:36,143 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:36,143 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196729740] [2022-03-15 13:51:36,143 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196729740] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:36,143 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:36,143 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:36,143 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719929118] [2022-03-15 13:51:36,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:36,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:36,143 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:36,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:36,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:36,144 INFO L87 Difference]: Start difference. First operand 8980 states and 24254 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:36,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:36,626 INFO L93 Difference]: Finished difference Result 11758 states and 31692 transitions. [2022-03-15 13:51:36,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:51:36,627 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:36,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:36,645 INFO L225 Difference]: With dead ends: 11758 [2022-03-15 13:51:36,645 INFO L226 Difference]: Without dead ends: 11273 [2022-03-15 13:51:36,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=322, Invalid=1010, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:51:36,645 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 221 mSDsluCounter, 3206 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 3449 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:36,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 3449 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:36,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11273 states. [2022-03-15 13:51:36,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11273 to 8992. [2022-03-15 13:51:36,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7008119230341454) internal successors, (24283), 8991 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:36,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-03-15 13:51:36,788 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-03-15 13:51:36,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:36,788 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-03-15 13:51:36,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:36,788 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-03-15 13:51:36,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:36,799 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:36,799 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:36,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-03-15 13:51:36,799 INFO L402 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:36,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:36,800 INFO L85 PathProgramCache]: Analyzing trace with hash -97558412, now seen corresponding path program 167 times [2022-03-15 13:51:36,800 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:36,800 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338704151] [2022-03-15 13:51:36,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:36,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:36,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:36,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:36,902 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:36,902 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338704151] [2022-03-15 13:51:36,902 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338704151] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:36,902 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:36,902 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:36,902 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940809352] [2022-03-15 13:51:36,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:36,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:36,902 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:36,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:36,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:36,903 INFO L87 Difference]: Start difference. First operand 8992 states and 24283 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:37,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:37,369 INFO L93 Difference]: Finished difference Result 11716 states and 31581 transitions. [2022-03-15 13:51:37,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:51:37,369 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:37,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:37,388 INFO L225 Difference]: With dead ends: 11716 [2022-03-15 13:51:37,388 INFO L226 Difference]: Without dead ends: 11230 [2022-03-15 13:51:37,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=328, Invalid=1078, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:51:37,388 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 218 mSDsluCounter, 2852 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 3110 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:37,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 3110 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:37,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11230 states. [2022-03-15 13:51:37,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11230 to 8988. [2022-03-15 13:51:37,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:37,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-03-15 13:51:37,533 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-03-15 13:51:37,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:37,533 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-03-15 13:51:37,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:37,533 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-03-15 13:51:37,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:37,544 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:37,544 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:37,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-03-15 13:51:37,545 INFO L402 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:37,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:37,545 INFO L85 PathProgramCache]: Analyzing trace with hash 603129144, now seen corresponding path program 168 times [2022-03-15 13:51:37,545 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:37,545 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575149170] [2022-03-15 13:51:37,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:37,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:37,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:37,669 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:37,670 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575149170] [2022-03-15 13:51:37,670 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575149170] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:37,670 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:37,670 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:37,670 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65412209] [2022-03-15 13:51:37,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:37,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:37,670 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:37,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:37,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:37,670 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:38,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:38,249 INFO L93 Difference]: Finished difference Result 11844 states and 31913 transitions. [2022-03-15 13:51:38,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:51:38,249 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:38,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:38,268 INFO L225 Difference]: With dead ends: 11844 [2022-03-15 13:51:38,268 INFO L226 Difference]: Without dead ends: 11318 [2022-03-15 13:51:38,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=460, Invalid=1432, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 13:51:38,268 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 287 mSDsluCounter, 2908 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 3170 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:38,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [287 Valid, 3170 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:38,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11318 states. [2022-03-15 13:51:38,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11318 to 8984. [2022-03-15 13:51:38,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7007681175553824) internal successors, (24261), 8983 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:38,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-03-15 13:51:38,426 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-03-15 13:51:38,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:38,426 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-03-15 13:51:38,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:38,426 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-03-15 13:51:38,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:38,439 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:38,439 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:38,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-03-15 13:51:38,439 INFO L402 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:38,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:38,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1680817172, now seen corresponding path program 169 times [2022-03-15 13:51:38,440 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:38,440 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323563688] [2022-03-15 13:51:38,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:38,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:38,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:38,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:38,553 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:38,553 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323563688] [2022-03-15 13:51:38,553 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323563688] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:38,553 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:38,553 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:38,553 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237489632] [2022-03-15 13:51:38,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:38,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:38,553 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:38,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:38,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:38,554 INFO L87 Difference]: Start difference. First operand 8984 states and 24261 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:39,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:39,166 INFO L93 Difference]: Finished difference Result 11846 states and 31905 transitions. [2022-03-15 13:51:39,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-15 13:51:39,167 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:39,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:39,186 INFO L225 Difference]: With dead ends: 11846 [2022-03-15 13:51:39,186 INFO L226 Difference]: Without dead ends: 11318 [2022-03-15 13:51:39,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=467, Invalid=1425, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 13:51:39,187 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 274 mSDsluCounter, 3304 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 3547 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:39,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [274 Valid, 3547 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:39,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11318 states. [2022-03-15 13:51:39,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11318 to 8988. [2022-03-15 13:51:39,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:39,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-03-15 13:51:39,348 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-03-15 13:51:39,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:39,348 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-03-15 13:51:39,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:39,348 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-03-15 13:51:39,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:39,360 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:39,361 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:39,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-03-15 13:51:39,361 INFO L402 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:39,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:39,361 INFO L85 PathProgramCache]: Analyzing trace with hash -827215170, now seen corresponding path program 170 times [2022-03-15 13:51:39,361 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:39,361 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218115878] [2022-03-15 13:51:39,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:39,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:39,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:39,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:39,469 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:39,469 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218115878] [2022-03-15 13:51:39,469 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218115878] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:39,469 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:39,469 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:39,469 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184984100] [2022-03-15 13:51:39,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:39,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:39,470 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:39,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:39,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:39,470 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:39,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:39,945 INFO L93 Difference]: Finished difference Result 11698 states and 31519 transitions. [2022-03-15 13:51:39,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:51:39,946 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:39,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:39,964 INFO L225 Difference]: With dead ends: 11698 [2022-03-15 13:51:39,964 INFO L226 Difference]: Without dead ends: 11213 [2022-03-15 13:51:39,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=340, Invalid=1066, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:51:39,964 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 218 mSDsluCounter, 2512 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 2770 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:39,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 2770 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:39,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11213 states. [2022-03-15 13:51:40,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11213 to 8992. [2022-03-15 13:51:40,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.699922144366589) internal successors, (24275), 8991 states have internal predecessors, (24275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:40,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24275 transitions. [2022-03-15 13:51:40,117 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24275 transitions. Word has length 109 [2022-03-15 13:51:40,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:40,117 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24275 transitions. [2022-03-15 13:51:40,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:40,118 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24275 transitions. [2022-03-15 13:51:40,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:40,129 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:40,129 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:40,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-03-15 13:51:40,130 INFO L402 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:40,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:40,130 INFO L85 PathProgramCache]: Analyzing trace with hash -145594516, now seen corresponding path program 171 times [2022-03-15 13:51:40,130 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:40,130 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609906971] [2022-03-15 13:51:40,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:40,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:40,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:40,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:40,250 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:40,250 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609906971] [2022-03-15 13:51:40,250 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609906971] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:40,250 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:40,250 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:40,251 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550173338] [2022-03-15 13:51:40,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:40,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:40,251 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:40,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:40,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:40,251 INFO L87 Difference]: Start difference. First operand 8992 states and 24275 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:40,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:40,689 INFO L93 Difference]: Finished difference Result 11616 states and 31298 transitions. [2022-03-15 13:51:40,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:51:40,689 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:40,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:40,707 INFO L225 Difference]: With dead ends: 11616 [2022-03-15 13:51:40,707 INFO L226 Difference]: Without dead ends: 11118 [2022-03-15 13:51:40,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=310, Invalid=1022, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:51:40,708 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 202 mSDsluCounter, 3005 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 3258 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:40,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [202 Valid, 3258 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:40,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11118 states. [2022-03-15 13:51:40,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11118 to 8976. [2022-03-15 13:51:40,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8976 states, 8975 states have (on average 2.7011699164345404) internal successors, (24243), 8975 states have internal predecessors, (24243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:40,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8976 states to 8976 states and 24243 transitions. [2022-03-15 13:51:40,854 INFO L78 Accepts]: Start accepts. Automaton has 8976 states and 24243 transitions. Word has length 109 [2022-03-15 13:51:40,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:40,854 INFO L470 AbstractCegarLoop]: Abstraction has 8976 states and 24243 transitions. [2022-03-15 13:51:40,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:40,854 INFO L276 IsEmpty]: Start isEmpty. Operand 8976 states and 24243 transitions. [2022-03-15 13:51:40,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:40,866 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:40,866 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:40,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-03-15 13:51:40,866 INFO L402 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:40,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:40,867 INFO L85 PathProgramCache]: Analyzing trace with hash 302765246, now seen corresponding path program 172 times [2022-03-15 13:51:40,867 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:40,867 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360038155] [2022-03-15 13:51:40,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:40,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:40,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:40,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:40,987 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:40,987 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360038155] [2022-03-15 13:51:40,987 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360038155] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:40,987 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:40,987 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:40,988 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906733184] [2022-03-15 13:51:40,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:40,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:40,988 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:40,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:40,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:40,988 INFO L87 Difference]: Start difference. First operand 8976 states and 24243 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:41,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:41,461 INFO L93 Difference]: Finished difference Result 11794 states and 31791 transitions. [2022-03-15 13:51:41,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:51:41,462 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:41,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:41,479 INFO L225 Difference]: With dead ends: 11794 [2022-03-15 13:51:41,479 INFO L226 Difference]: Without dead ends: 11309 [2022-03-15 13:51:41,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=1015, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:51:41,479 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 218 mSDsluCounter, 2941 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 3188 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:41,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 3188 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:41,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11309 states. [2022-03-15 13:51:41,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11309 to 8992. [2022-03-15 13:51:41,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7008119230341454) internal successors, (24283), 8991 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:41,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-03-15 13:51:41,642 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-03-15 13:51:41,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:41,642 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-03-15 13:51:41,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:41,642 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-03-15 13:51:41,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:41,655 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:41,655 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:41,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-03-15 13:51:41,655 INFO L402 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:41,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:41,656 INFO L85 PathProgramCache]: Analyzing trace with hash 984385900, now seen corresponding path program 173 times [2022-03-15 13:51:41,656 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:41,656 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160190968] [2022-03-15 13:51:41,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:41,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:41,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:41,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:41,758 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:41,758 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160190968] [2022-03-15 13:51:41,758 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160190968] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:41,758 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:41,758 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:41,758 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071094896] [2022-03-15 13:51:41,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:41,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:41,759 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:41,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:41,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:41,759 INFO L87 Difference]: Start difference. First operand 8992 states and 24283 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:42,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:42,215 INFO L93 Difference]: Finished difference Result 11752 states and 31680 transitions. [2022-03-15 13:51:42,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:51:42,215 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:42,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:42,233 INFO L225 Difference]: With dead ends: 11752 [2022-03-15 13:51:42,233 INFO L226 Difference]: Without dead ends: 11266 [2022-03-15 13:51:42,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=1073, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:51:42,234 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 213 mSDsluCounter, 2851 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 3108 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:42,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 3108 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:42,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11266 states. [2022-03-15 13:51:42,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11266 to 8988. [2022-03-15 13:51:42,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:42,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-03-15 13:51:42,376 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-03-15 13:51:42,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:42,376 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-03-15 13:51:42,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:42,376 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-03-15 13:51:42,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:42,388 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:42,388 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:42,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-03-15 13:51:42,388 INFO L402 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:42,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:42,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1685073456, now seen corresponding path program 174 times [2022-03-15 13:51:42,388 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:42,388 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405561660] [2022-03-15 13:51:42,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:42,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:42,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:42,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:42,496 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:42,496 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405561660] [2022-03-15 13:51:42,496 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405561660] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:42,496 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:42,496 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:42,496 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362869625] [2022-03-15 13:51:42,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:42,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:42,497 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:42,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:42,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:42,497 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:43,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:43,067 INFO L93 Difference]: Finished difference Result 11860 states and 31957 transitions. [2022-03-15 13:51:43,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-15 13:51:43,067 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:43,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:43,085 INFO L225 Difference]: With dead ends: 11860 [2022-03-15 13:51:43,085 INFO L226 Difference]: Without dead ends: 11334 [2022-03-15 13:51:43,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=449, Invalid=1357, Unknown=0, NotChecked=0, Total=1806 [2022-03-15 13:51:43,086 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 275 mSDsluCounter, 2989 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 3250 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:43,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 3250 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:43,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11334 states. [2022-03-15 13:51:43,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11334 to 8984. [2022-03-15 13:51:43,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7007681175553824) internal successors, (24261), 8983 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:43,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-03-15 13:51:43,235 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-03-15 13:51:43,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:43,236 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-03-15 13:51:43,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:43,236 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-03-15 13:51:43,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:43,247 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:43,247 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:43,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-03-15 13:51:43,247 INFO L402 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:43,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:43,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1532205812, now seen corresponding path program 175 times [2022-03-15 13:51:43,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:43,248 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493802972] [2022-03-15 13:51:43,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:43,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:43,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:43,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:43,360 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:43,360 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493802972] [2022-03-15 13:51:43,360 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493802972] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:43,360 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:43,360 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:43,360 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377071207] [2022-03-15 13:51:43,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:43,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:43,361 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:43,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:43,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:43,361 INFO L87 Difference]: Start difference. First operand 8984 states and 24261 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:43,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:43,948 INFO L93 Difference]: Finished difference Result 11958 states and 32213 transitions. [2022-03-15 13:51:43,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:51:43,949 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:43,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:43,966 INFO L225 Difference]: With dead ends: 11958 [2022-03-15 13:51:43,966 INFO L226 Difference]: Without dead ends: 11430 [2022-03-15 13:51:43,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=481, Invalid=1589, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:51:43,966 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 281 mSDsluCounter, 3159 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 3406 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:43,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [281 Valid, 3406 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:43,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11430 states. [2022-03-15 13:51:44,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11430 to 8988. [2022-03-15 13:51:44,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:44,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-03-15 13:51:44,098 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-03-15 13:51:44,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:44,098 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-03-15 13:51:44,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:44,098 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-03-15 13:51:44,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:44,109 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:44,109 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:44,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-03-15 13:51:44,109 INFO L402 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:44,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:44,109 INFO L85 PathProgramCache]: Analyzing trace with hash 254729142, now seen corresponding path program 176 times [2022-03-15 13:51:44,109 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:44,109 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109187592] [2022-03-15 13:51:44,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:44,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:44,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:44,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:44,221 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:44,221 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109187592] [2022-03-15 13:51:44,221 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109187592] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:44,221 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:44,221 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:44,221 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861596458] [2022-03-15 13:51:44,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:44,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:44,222 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:44,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:44,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:44,222 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:44,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:44,715 INFO L93 Difference]: Finished difference Result 11794 states and 31783 transitions. [2022-03-15 13:51:44,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:51:44,715 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:44,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:44,732 INFO L225 Difference]: With dead ends: 11794 [2022-03-15 13:51:44,733 INFO L226 Difference]: Without dead ends: 11309 [2022-03-15 13:51:44,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=335, Invalid=1071, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:51:44,733 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 222 mSDsluCounter, 2522 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 2781 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:44,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 2781 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:44,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11309 states. [2022-03-15 13:51:44,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11309 to 8992. [2022-03-15 13:51:44,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.699922144366589) internal successors, (24275), 8991 states have internal predecessors, (24275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:44,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24275 transitions. [2022-03-15 13:51:44,876 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24275 transitions. Word has length 109 [2022-03-15 13:51:44,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:44,876 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24275 transitions. [2022-03-15 13:51:44,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:44,876 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24275 transitions. [2022-03-15 13:51:44,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:44,887 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:44,887 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:44,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-03-15 13:51:44,887 INFO L402 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:44,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:44,888 INFO L85 PathProgramCache]: Analyzing trace with hash 936349796, now seen corresponding path program 177 times [2022-03-15 13:51:44,888 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:44,888 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19629796] [2022-03-15 13:51:44,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:44,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:44,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:44,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:44,991 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:44,991 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19629796] [2022-03-15 13:51:44,991 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19629796] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:44,991 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:44,991 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:44,992 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966127825] [2022-03-15 13:51:44,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:44,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:44,992 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:44,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:44,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:44,992 INFO L87 Difference]: Start difference. First operand 8992 states and 24275 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:45,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:45,456 INFO L93 Difference]: Finished difference Result 11728 states and 31606 transitions. [2022-03-15 13:51:45,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:51:45,456 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:45,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:45,473 INFO L225 Difference]: With dead ends: 11728 [2022-03-15 13:51:45,474 INFO L226 Difference]: Without dead ends: 11234 [2022-03-15 13:51:45,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=315, Invalid=1017, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:51:45,474 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 210 mSDsluCounter, 3014 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 3267 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:45,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 3267 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:45,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11234 states. [2022-03-15 13:51:45,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11234 to 8980. [2022-03-15 13:51:45,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.7007461855440473) internal successors, (24250), 8979 states have internal predecessors, (24250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:45,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24250 transitions. [2022-03-15 13:51:45,607 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24250 transitions. Word has length 109 [2022-03-15 13:51:45,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:45,607 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24250 transitions. [2022-03-15 13:51:45,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:45,607 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24250 transitions. [2022-03-15 13:51:45,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:45,618 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:45,618 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:45,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-03-15 13:51:45,619 INFO L402 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:45,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:45,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1259283648, now seen corresponding path program 178 times [2022-03-15 13:51:45,619 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:45,619 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773678653] [2022-03-15 13:51:45,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:45,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:45,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:45,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:45,724 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:45,724 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773678653] [2022-03-15 13:51:45,724 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773678653] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:45,724 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:45,724 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:45,724 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761268652] [2022-03-15 13:51:45,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:45,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:45,724 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:45,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:45,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:45,725 INFO L87 Difference]: Start difference. First operand 8980 states and 24250 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:46,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:46,390 INFO L93 Difference]: Finished difference Result 11979 states and 32252 transitions. [2022-03-15 13:51:46,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-15 13:51:46,390 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:46,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:46,409 INFO L225 Difference]: With dead ends: 11979 [2022-03-15 13:51:46,409 INFO L226 Difference]: Without dead ends: 11408 [2022-03-15 13:51:46,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=661, Invalid=2095, Unknown=0, NotChecked=0, Total=2756 [2022-03-15 13:51:46,410 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 346 mSDsluCounter, 3075 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 3322 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:46,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [346 Valid, 3322 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:46,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11408 states. [2022-03-15 13:51:46,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11408 to 8984. [2022-03-15 13:51:46,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.70032283201603) internal successors, (24257), 8983 states have internal predecessors, (24257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:46,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24257 transitions. [2022-03-15 13:51:46,568 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24257 transitions. Word has length 109 [2022-03-15 13:51:46,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:46,568 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24257 transitions. [2022-03-15 13:51:46,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:46,568 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24257 transitions. [2022-03-15 13:51:46,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:46,580 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:46,580 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:46,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-03-15 13:51:46,581 INFO L402 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:46,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:46,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1246121194, now seen corresponding path program 179 times [2022-03-15 13:51:46,581 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:46,581 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411543834] [2022-03-15 13:51:46,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:46,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:46,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:46,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:46,690 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:46,690 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411543834] [2022-03-15 13:51:46,690 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411543834] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:46,690 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:46,690 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:46,690 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816353935] [2022-03-15 13:51:46,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:46,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:46,690 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:46,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:46,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:46,691 INFO L87 Difference]: Start difference. First operand 8984 states and 24257 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:47,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:47,291 INFO L93 Difference]: Finished difference Result 11862 states and 31945 transitions. [2022-03-15 13:51:47,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:51:47,292 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:47,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:47,306 INFO L225 Difference]: With dead ends: 11862 [2022-03-15 13:51:47,307 INFO L226 Difference]: Without dead ends: 11334 [2022-03-15 13:51:47,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=493, Invalid=1669, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 13:51:47,307 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 279 mSDsluCounter, 3320 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 3565 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:47,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 3565 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:47,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11334 states. [2022-03-15 13:51:47,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11334 to 8988. [2022-03-15 13:51:47,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.6998998553466116) internal successors, (24264), 8987 states have internal predecessors, (24264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:47,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24264 transitions. [2022-03-15 13:51:47,430 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24264 transitions. Word has length 109 [2022-03-15 13:51:47,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:47,430 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24264 transitions. [2022-03-15 13:51:47,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:47,430 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24264 transitions. [2022-03-15 13:51:47,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:47,441 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:47,441 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:47,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2022-03-15 13:51:47,441 INFO L402 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:47,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:47,441 INFO L85 PathProgramCache]: Analyzing trace with hash 540813760, now seen corresponding path program 180 times [2022-03-15 13:51:47,442 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:47,442 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005983050] [2022-03-15 13:51:47,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:47,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:47,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:47,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:47,544 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:47,544 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005983050] [2022-03-15 13:51:47,544 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005983050] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:47,544 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:47,544 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:47,544 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393440006] [2022-03-15 13:51:47,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:47,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:47,544 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:47,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:47,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:47,544 INFO L87 Difference]: Start difference. First operand 8988 states and 24264 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:47,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:47,997 INFO L93 Difference]: Finished difference Result 11714 states and 31559 transitions. [2022-03-15 13:51:47,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:51:47,998 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:47,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:48,015 INFO L225 Difference]: With dead ends: 11714 [2022-03-15 13:51:48,015 INFO L226 Difference]: Without dead ends: 11229 [2022-03-15 13:51:48,015 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=1149, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:51:48,015 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 222 mSDsluCounter, 3210 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 3453 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:48,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 3453 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:48,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11229 states. [2022-03-15 13:51:48,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11229 to 8992. [2022-03-15 13:51:48,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.6994772550328108) internal successors, (24271), 8991 states have internal predecessors, (24271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:48,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24271 transitions. [2022-03-15 13:51:48,157 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24271 transitions. Word has length 109 [2022-03-15 13:51:48,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:48,157 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24271 transitions. [2022-03-15 13:51:48,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:48,157 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24271 transitions. [2022-03-15 13:51:48,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:48,168 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:48,168 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:48,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2022-03-15 13:51:48,168 INFO L402 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:48,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:48,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1222434414, now seen corresponding path program 181 times [2022-03-15 13:51:48,168 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:48,168 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473488244] [2022-03-15 13:51:48,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:48,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:48,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:48,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:48,273 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:48,273 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473488244] [2022-03-15 13:51:48,273 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473488244] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:48,274 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:48,274 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:48,274 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371113623] [2022-03-15 13:51:48,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:48,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:48,274 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:48,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:48,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:48,274 INFO L87 Difference]: Start difference. First operand 8992 states and 24271 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:48,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:48,683 INFO L93 Difference]: Finished difference Result 11616 states and 31294 transitions. [2022-03-15 13:51:48,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:51:48,683 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:48,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:48,700 INFO L225 Difference]: With dead ends: 11616 [2022-03-15 13:51:48,700 INFO L226 Difference]: Without dead ends: 11114 [2022-03-15 13:51:48,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=299, Invalid=961, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:51:48,701 INFO L933 BasicCegarLoop]: 301 mSDtfsCounter, 201 mSDsluCounter, 2997 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 3246 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:48,701 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 3246 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:48,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11114 states. [2022-03-15 13:51:48,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11114 to 8972. [2022-03-15 13:51:48,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8972 states, 8971 states have (on average 2.701148144019619) internal successors, (24232), 8971 states have internal predecessors, (24232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:48,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8972 states to 8972 states and 24232 transitions. [2022-03-15 13:51:48,834 INFO L78 Accepts]: Start accepts. Automaton has 8972 states and 24232 transitions. Word has length 109 [2022-03-15 13:51:48,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:48,834 INFO L470 AbstractCegarLoop]: Abstraction has 8972 states and 24232 transitions. [2022-03-15 13:51:48,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:48,834 INFO L276 IsEmpty]: Start isEmpty. Operand 8972 states and 24232 transitions. [2022-03-15 13:51:48,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:48,844 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:48,844 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:48,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2022-03-15 13:51:48,845 INFO L402 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:48,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:48,845 INFO L85 PathProgramCache]: Analyzing trace with hash -690474580, now seen corresponding path program 182 times [2022-03-15 13:51:48,845 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:48,845 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735200590] [2022-03-15 13:51:48,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:48,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:48,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:48,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:48,952 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:48,952 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735200590] [2022-03-15 13:51:48,952 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735200590] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:48,952 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:48,952 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:48,952 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175195027] [2022-03-15 13:51:48,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:48,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:48,953 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:48,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:48,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:48,953 INFO L87 Difference]: Start difference. First operand 8972 states and 24232 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:49,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:49,402 INFO L93 Difference]: Finished difference Result 11622 states and 31318 transitions. [2022-03-15 13:51:49,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:51:49,402 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:49,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:49,419 INFO L225 Difference]: With dead ends: 11622 [2022-03-15 13:51:49,419 INFO L226 Difference]: Without dead ends: 11137 [2022-03-15 13:51:49,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=313, Invalid=1019, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:51:49,420 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 219 mSDsluCounter, 2618 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 2869 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:49,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 2869 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:49,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11137 states. [2022-03-15 13:51:49,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11137 to 8992. [2022-03-15 13:51:49,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7008119230341454) internal successors, (24283), 8991 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:49,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-03-15 13:51:49,560 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-03-15 13:51:49,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:49,560 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-03-15 13:51:49,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:49,560 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-03-15 13:51:49,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:49,571 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:49,571 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:49,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2022-03-15 13:51:49,571 INFO L402 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:49,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:49,571 INFO L85 PathProgramCache]: Analyzing trace with hash -8853926, now seen corresponding path program 183 times [2022-03-15 13:51:49,571 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:49,571 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69019062] [2022-03-15 13:51:49,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:49,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:49,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:49,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:49,680 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:49,680 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69019062] [2022-03-15 13:51:49,680 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69019062] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:49,680 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:49,680 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:49,680 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257651280] [2022-03-15 13:51:49,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:49,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:49,681 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:49,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:49,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:49,681 INFO L87 Difference]: Start difference. First operand 8992 states and 24283 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:50,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:50,168 INFO L93 Difference]: Finished difference Result 11580 states and 31207 transitions. [2022-03-15 13:51:50,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:51:50,169 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:50,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:50,186 INFO L225 Difference]: With dead ends: 11580 [2022-03-15 13:51:50,186 INFO L226 Difference]: Without dead ends: 11094 [2022-03-15 13:51:50,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=339, Invalid=1067, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:51:50,186 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 203 mSDsluCounter, 3201 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 3454 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:50,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 3454 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:50,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11094 states. [2022-03-15 13:51:50,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11094 to 8988. [2022-03-15 13:51:50,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:50,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-03-15 13:51:50,336 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-03-15 13:51:50,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:50,336 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-03-15 13:51:50,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:50,336 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-03-15 13:51:50,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:50,348 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:50,348 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:50,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2022-03-15 13:51:50,348 INFO L402 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:50,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:50,349 INFO L85 PathProgramCache]: Analyzing trace with hash 691833630, now seen corresponding path program 184 times [2022-03-15 13:51:50,349 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:50,349 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312838429] [2022-03-15 13:51:50,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:50,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:50,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:50,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:50,457 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:50,457 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312838429] [2022-03-15 13:51:50,457 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312838429] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:50,457 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:50,457 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:50,457 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938338920] [2022-03-15 13:51:50,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:50,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:50,457 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:50,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:50,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:50,458 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:51,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:51,059 INFO L93 Difference]: Finished difference Result 11688 states and 31484 transitions. [2022-03-15 13:51:51,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-15 13:51:51,060 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:51,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:51,076 INFO L225 Difference]: With dead ends: 11688 [2022-03-15 13:51:51,076 INFO L226 Difference]: Without dead ends: 11162 [2022-03-15 13:51:51,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=440, Invalid=1282, Unknown=0, NotChecked=0, Total=1722 [2022-03-15 13:51:51,077 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 274 mSDsluCounter, 2715 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 2978 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:51,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [274 Valid, 2978 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:51,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11162 states. [2022-03-15 13:51:51,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11162 to 8984. [2022-03-15 13:51:51,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7007681175553824) internal successors, (24261), 8983 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:51,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-03-15 13:51:51,220 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-03-15 13:51:51,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:51,220 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-03-15 13:51:51,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:51,220 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-03-15 13:51:51,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:51,231 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:51,231 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:51,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2022-03-15 13:51:51,231 INFO L402 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:51,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:51,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1769521658, now seen corresponding path program 185 times [2022-03-15 13:51:51,232 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:51,232 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806768559] [2022-03-15 13:51:51,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:51,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:51,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:51,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:51,357 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:51,357 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806768559] [2022-03-15 13:51:51,357 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806768559] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:51,357 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:51,358 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:51,358 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933222322] [2022-03-15 13:51:51,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:51,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:51,358 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:51,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:51,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:51,358 INFO L87 Difference]: Start difference. First operand 8984 states and 24261 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:51,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:51,973 INFO L93 Difference]: Finished difference Result 11786 states and 31740 transitions. [2022-03-15 13:51:51,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:51:51,973 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:51,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:51,991 INFO L225 Difference]: With dead ends: 11786 [2022-03-15 13:51:51,992 INFO L226 Difference]: Without dead ends: 11258 [2022-03-15 13:51:51,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 478 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:51:51,992 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 288 mSDsluCounter, 2840 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 3091 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:51,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [288 Valid, 3091 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:52,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11258 states. [2022-03-15 13:51:52,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11258 to 8988. [2022-03-15 13:51:52,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:52,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-03-15 13:51:52,146 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-03-15 13:51:52,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:52,146 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-03-15 13:51:52,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:52,146 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-03-15 13:51:52,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:52,157 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:52,157 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:52,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2022-03-15 13:51:52,158 INFO L402 AbstractCegarLoop]: === Iteration 235 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:52,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:52,158 INFO L85 PathProgramCache]: Analyzing trace with hash -738510684, now seen corresponding path program 186 times [2022-03-15 13:51:52,158 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:52,158 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544470910] [2022-03-15 13:51:52,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:52,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:52,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:52,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:52,308 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:52,308 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544470910] [2022-03-15 13:51:52,308 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544470910] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:52,308 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:52,308 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:52,308 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482745911] [2022-03-15 13:51:52,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:52,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:52,308 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:52,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:52,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:52,308 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:52,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:52,865 INFO L93 Difference]: Finished difference Result 11622 states and 31310 transitions. [2022-03-15 13:51:52,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:51:52,866 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:52,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:52,885 INFO L225 Difference]: With dead ends: 11622 [2022-03-15 13:51:52,885 INFO L226 Difference]: Without dead ends: 11137 [2022-03-15 13:51:52,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=331, Invalid=1075, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:51:52,886 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 226 mSDsluCounter, 2745 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 2998 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:52,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 2998 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:52,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11137 states. [2022-03-15 13:51:53,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11137 to 8992. [2022-03-15 13:51:53,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.699922144366589) internal successors, (24275), 8991 states have internal predecessors, (24275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:53,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24275 transitions. [2022-03-15 13:51:53,033 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24275 transitions. Word has length 109 [2022-03-15 13:51:53,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:53,033 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24275 transitions. [2022-03-15 13:51:53,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:53,034 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24275 transitions. [2022-03-15 13:51:53,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:53,045 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:53,045 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:53,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2022-03-15 13:51:53,045 INFO L402 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:53,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:53,046 INFO L85 PathProgramCache]: Analyzing trace with hash -56890030, now seen corresponding path program 187 times [2022-03-15 13:51:53,046 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:53,046 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090555701] [2022-03-15 13:51:53,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:53,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:53,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:53,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:53,148 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:53,148 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090555701] [2022-03-15 13:51:53,148 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090555701] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:53,148 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:53,148 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:53,148 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377968147] [2022-03-15 13:51:53,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:53,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:53,149 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:53,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:53,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:53,149 INFO L87 Difference]: Start difference. First operand 8992 states and 24275 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:53,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:53,588 INFO L93 Difference]: Finished difference Result 11556 states and 31133 transitions. [2022-03-15 13:51:53,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:51:53,588 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:53,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:53,607 INFO L225 Difference]: With dead ends: 11556 [2022-03-15 13:51:53,607 INFO L226 Difference]: Without dead ends: 11062 [2022-03-15 13:51:53,607 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=321, Invalid=1011, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:51:53,607 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 205 mSDsluCounter, 3022 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 3275 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:53,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 3275 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:53,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11062 states. [2022-03-15 13:51:53,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11062 to 8980. [2022-03-15 13:51:53,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.7007461855440473) internal successors, (24250), 8979 states have internal predecessors, (24250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:53,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24250 transitions. [2022-03-15 13:51:53,774 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24250 transitions. Word has length 109 [2022-03-15 13:51:53,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:53,774 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24250 transitions. [2022-03-15 13:51:53,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:53,774 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24250 transitions. [2022-03-15 13:51:53,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:53,786 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:53,786 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:53,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2022-03-15 13:51:53,786 INFO L402 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:53,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:53,787 INFO L85 PathProgramCache]: Analyzing trace with hash 266043822, now seen corresponding path program 188 times [2022-03-15 13:51:53,787 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:53,787 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805358579] [2022-03-15 13:51:53,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:53,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:53,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:53,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:53,891 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:53,891 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805358579] [2022-03-15 13:51:53,891 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805358579] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:53,891 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:53,891 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:53,891 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419406091] [2022-03-15 13:51:53,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:53,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:53,892 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:53,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:53,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:53,892 INFO L87 Difference]: Start difference. First operand 8980 states and 24250 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:54,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:54,553 INFO L93 Difference]: Finished difference Result 11919 states and 32087 transitions. [2022-03-15 13:51:54,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-15 13:51:54,554 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:54,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:54,572 INFO L225 Difference]: With dead ends: 11919 [2022-03-15 13:51:54,572 INFO L226 Difference]: Without dead ends: 11348 [2022-03-15 13:51:54,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 758 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=668, Invalid=2194, Unknown=0, NotChecked=0, Total=2862 [2022-03-15 13:51:54,573 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 335 mSDsluCounter, 3422 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 3667 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:54,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [335 Valid, 3667 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:54,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11348 states. [2022-03-15 13:51:54,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11348 to 8984. [2022-03-15 13:51:54,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.70032283201603) internal successors, (24257), 8983 states have internal predecessors, (24257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:54,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24257 transitions. [2022-03-15 13:51:54,713 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24257 transitions. Word has length 109 [2022-03-15 13:51:54,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:54,713 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24257 transitions. [2022-03-15 13:51:54,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:54,714 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24257 transitions. [2022-03-15 13:51:54,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:54,725 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:54,725 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:54,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2022-03-15 13:51:54,725 INFO L402 AbstractCegarLoop]: === Iteration 238 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:54,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:54,726 INFO L85 PathProgramCache]: Analyzing trace with hash 2055606276, now seen corresponding path program 189 times [2022-03-15 13:51:54,726 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:54,726 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415677258] [2022-03-15 13:51:54,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:54,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:54,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:54,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:54,828 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:54,828 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415677258] [2022-03-15 13:51:54,828 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415677258] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:54,828 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:54,828 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:54,828 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438540166] [2022-03-15 13:51:54,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:54,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:54,828 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:54,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:54,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:54,829 INFO L87 Difference]: Start difference. First operand 8984 states and 24257 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:55,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:55,397 INFO L93 Difference]: Finished difference Result 11794 states and 31758 transitions. [2022-03-15 13:51:55,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:51:55,397 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:55,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:55,416 INFO L225 Difference]: With dead ends: 11794 [2022-03-15 13:51:55,416 INFO L226 Difference]: Without dead ends: 11266 [2022-03-15 13:51:55,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 510 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=484, Invalid=1678, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 13:51:55,417 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 282 mSDsluCounter, 2851 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 3103 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:55,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 3103 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:55,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11266 states. [2022-03-15 13:51:55,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11266 to 8988. [2022-03-15 13:51:55,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.6998998553466116) internal successors, (24264), 8987 states have internal predecessors, (24264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:55,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24264 transitions. [2022-03-15 13:51:55,565 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24264 transitions. Word has length 109 [2022-03-15 13:51:55,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:55,566 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24264 transitions. [2022-03-15 13:51:55,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:55,566 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24264 transitions. [2022-03-15 13:51:55,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:55,577 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:55,577 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:55,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2022-03-15 13:51:55,578 INFO L402 AbstractCegarLoop]: === Iteration 239 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:55,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:55,578 INFO L85 PathProgramCache]: Analyzing trace with hash -452426066, now seen corresponding path program 190 times [2022-03-15 13:51:55,578 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:55,578 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996141593] [2022-03-15 13:51:55,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:55,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:55,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:55,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:55,687 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:55,687 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996141593] [2022-03-15 13:51:55,687 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996141593] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:55,687 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:55,687 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:55,687 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027086766] [2022-03-15 13:51:55,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:55,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:55,687 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:55,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:55,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:55,688 INFO L87 Difference]: Start difference. First operand 8988 states and 24264 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:56,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:56,160 INFO L93 Difference]: Finished difference Result 11630 states and 31328 transitions. [2022-03-15 13:51:56,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:51:56,160 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:56,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:56,179 INFO L225 Difference]: With dead ends: 11630 [2022-03-15 13:51:56,179 INFO L226 Difference]: Without dead ends: 11145 [2022-03-15 13:51:56,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=1080, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:51:56,180 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 216 mSDsluCounter, 2795 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 3046 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:56,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 3046 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:56,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11145 states. [2022-03-15 13:51:56,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11145 to 8992. [2022-03-15 13:51:56,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.6994772550328108) internal successors, (24271), 8991 states have internal predecessors, (24271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:56,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24271 transitions. [2022-03-15 13:51:56,338 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24271 transitions. Word has length 109 [2022-03-15 13:51:56,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:56,339 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24271 transitions. [2022-03-15 13:51:56,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:56,339 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24271 transitions. [2022-03-15 13:51:56,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:56,351 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:56,351 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:56,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2022-03-15 13:51:56,351 INFO L402 AbstractCegarLoop]: === Iteration 240 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:56,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:56,352 INFO L85 PathProgramCache]: Analyzing trace with hash 229194588, now seen corresponding path program 191 times [2022-03-15 13:51:56,352 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:56,352 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066447387] [2022-03-15 13:51:56,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:56,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:56,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:56,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:56,455 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:56,455 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066447387] [2022-03-15 13:51:56,455 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066447387] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:56,455 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:56,455 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:56,455 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677659257] [2022-03-15 13:51:56,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:56,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:56,456 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:56,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:56,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:56,456 INFO L87 Difference]: Start difference. First operand 8992 states and 24271 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:56,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:56,864 INFO L93 Difference]: Finished difference Result 11556 states and 31129 transitions. [2022-03-15 13:51:56,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:51:56,864 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:56,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:56,880 INFO L225 Difference]: With dead ends: 11556 [2022-03-15 13:51:56,880 INFO L226 Difference]: Without dead ends: 11058 [2022-03-15 13:51:56,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=305, Invalid=955, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:51:56,881 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 201 mSDsluCounter, 3021 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 3271 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:56,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 3271 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:56,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11058 states. [2022-03-15 13:51:56,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11058 to 8976. [2022-03-15 13:51:56,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8976 states, 8975 states have (on average 2.700724233983287) internal successors, (24239), 8975 states have internal predecessors, (24239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:57,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8976 states to 8976 states and 24239 transitions. [2022-03-15 13:51:57,015 INFO L78 Accepts]: Start accepts. Automaton has 8976 states and 24239 transitions. Word has length 109 [2022-03-15 13:51:57,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:57,015 INFO L470 AbstractCegarLoop]: Abstraction has 8976 states and 24239 transitions. [2022-03-15 13:51:57,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:57,015 INFO L276 IsEmpty]: Start isEmpty. Operand 8976 states and 24239 transitions. [2022-03-15 13:51:57,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:57,028 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:57,028 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:57,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2022-03-15 13:51:57,028 INFO L402 AbstractCegarLoop]: === Iteration 241 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:57,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:57,028 INFO L85 PathProgramCache]: Analyzing trace with hash 903686232, now seen corresponding path program 192 times [2022-03-15 13:51:57,028 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:57,028 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603212063] [2022-03-15 13:51:57,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:57,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:57,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:57,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:57,138 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:57,138 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603212063] [2022-03-15 13:51:57,138 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603212063] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:57,138 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:57,138 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:57,138 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957185073] [2022-03-15 13:51:57,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:57,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:57,138 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:57,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:57,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:57,139 INFO L87 Difference]: Start difference. First operand 8976 states and 24239 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:57,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:57,937 INFO L93 Difference]: Finished difference Result 11747 states and 31589 transitions. [2022-03-15 13:51:57,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-15 13:51:57,938 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:57,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:57,957 INFO L225 Difference]: With dead ends: 11747 [2022-03-15 13:51:57,957 INFO L226 Difference]: Without dead ends: 11133 [2022-03-15 13:51:57,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 923 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=793, Invalid=2399, Unknown=0, NotChecked=0, Total=3192 [2022-03-15 13:51:57,958 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 405 mSDsluCounter, 3261 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 3512 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:57,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [405 Valid, 3512 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:51:57,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11133 states. [2022-03-15 13:51:58,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11133 to 8980. [2022-03-15 13:51:58,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.700300701637153) internal successors, (24246), 8979 states have internal predecessors, (24246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:58,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24246 transitions. [2022-03-15 13:51:58,165 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24246 transitions. Word has length 109 [2022-03-15 13:51:58,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:58,166 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24246 transitions. [2022-03-15 13:51:58,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:58,166 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24246 transitions. [2022-03-15 13:51:58,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:58,176 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:58,176 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:58,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2022-03-15 13:51:58,176 INFO L402 AbstractCegarLoop]: === Iteration 242 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:58,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:58,176 INFO L85 PathProgramCache]: Analyzing trace with hash -153609922, now seen corresponding path program 193 times [2022-03-15 13:51:58,176 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:58,176 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617230558] [2022-03-15 13:51:58,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:58,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:58,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:58,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:58,277 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:58,278 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617230558] [2022-03-15 13:51:58,278 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617230558] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:58,278 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:58,278 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:58,278 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268208082] [2022-03-15 13:51:58,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:58,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:58,278 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:58,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:58,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:58,278 INFO L87 Difference]: Start difference. First operand 8980 states and 24246 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:58,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:58,933 INFO L93 Difference]: Finished difference Result 11783 states and 31709 transitions. [2022-03-15 13:51:58,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-15 13:51:58,933 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:58,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:58,950 INFO L225 Difference]: With dead ends: 11783 [2022-03-15 13:51:58,950 INFO L226 Difference]: Without dead ends: 11212 [2022-03-15 13:51:58,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 807 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=675, Invalid=2295, Unknown=0, NotChecked=0, Total=2970 [2022-03-15 13:51:58,951 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 352 mSDsluCounter, 3174 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 3421 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:58,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 3421 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:58,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11212 states. [2022-03-15 13:51:59,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11212 to 8984. [2022-03-15 13:51:59,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.699877546476678) internal successors, (24253), 8983 states have internal predecessors, (24253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:59,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24253 transitions. [2022-03-15 13:51:59,084 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24253 transitions. Word has length 109 [2022-03-15 13:51:59,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:59,084 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24253 transitions. [2022-03-15 13:51:59,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:59,084 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24253 transitions. [2022-03-15 13:51:59,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:59,094 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:59,094 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:59,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2022-03-15 13:51:59,094 INFO L402 AbstractCegarLoop]: === Iteration 243 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:59,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:59,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1635952532, now seen corresponding path program 194 times [2022-03-15 13:51:59,095 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:59,095 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009746410] [2022-03-15 13:51:59,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:59,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:59,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:59,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:59,199 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:59,199 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009746410] [2022-03-15 13:51:59,199 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009746410] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:59,199 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:59,199 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:51:59,199 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256334928] [2022-03-15 13:51:59,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:59,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:51:59,200 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:59,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:51:59,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:51:59,200 INFO L87 Difference]: Start difference. First operand 8984 states and 24253 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:59,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:59,780 INFO L93 Difference]: Finished difference Result 11658 states and 31380 transitions. [2022-03-15 13:51:59,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:51:59,781 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:51:59,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:59,797 INFO L225 Difference]: With dead ends: 11658 [2022-03-15 13:51:59,798 INFO L226 Difference]: Without dead ends: 11130 [2022-03-15 13:51:59,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 517 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:51:59,798 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 270 mSDsluCounter, 2618 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 2875 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:59,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 2875 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:59,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11130 states. [2022-03-15 13:51:59,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11130 to 8988. [2022-03-15 13:51:59,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.6994547679982195) internal successors, (24260), 8987 states have internal predecessors, (24260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:59,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24260 transitions. [2022-03-15 13:51:59,935 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24260 transitions. Word has length 109 [2022-03-15 13:51:59,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:59,935 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24260 transitions. [2022-03-15 13:51:59,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:59,936 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24260 transitions. [2022-03-15 13:51:59,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:51:59,947 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:59,947 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:51:59,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2022-03-15 13:51:59,947 INFO L402 AbstractCegarLoop]: === Iteration 244 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:51:59,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:59,947 INFO L85 PathProgramCache]: Analyzing trace with hash -872079810, now seen corresponding path program 195 times [2022-03-15 13:51:59,947 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:59,947 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660010234] [2022-03-15 13:51:59,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:59,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:59,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:00,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:00,055 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:00,055 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660010234] [2022-03-15 13:52:00,055 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660010234] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:00,055 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:00,055 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:00,055 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525396126] [2022-03-15 13:52:00,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:00,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:00,055 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:00,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:00,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:00,056 INFO L87 Difference]: Start difference. First operand 8988 states and 24260 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:00,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:00,524 INFO L93 Difference]: Finished difference Result 11494 states and 30950 transitions. [2022-03-15 13:52:00,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:52:00,525 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:00,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:00,542 INFO L225 Difference]: With dead ends: 11494 [2022-03-15 13:52:00,542 INFO L226 Difference]: Without dead ends: 11009 [2022-03-15 13:52:00,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=322, Invalid=1084, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:52:00,543 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 210 mSDsluCounter, 3230 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 3471 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:00,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 3471 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:00,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11009 states. [2022-03-15 13:52:00,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11009 to 8992. [2022-03-15 13:52:00,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.6990323656990323) internal successors, (24267), 8991 states have internal predecessors, (24267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:00,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24267 transitions. [2022-03-15 13:52:00,685 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24267 transitions. Word has length 109 [2022-03-15 13:52:00,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:00,685 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24267 transitions. [2022-03-15 13:52:00,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:00,685 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24267 transitions. [2022-03-15 13:52:00,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:00,697 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:00,697 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:00,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2022-03-15 13:52:00,697 INFO L402 AbstractCegarLoop]: === Iteration 245 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:00,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:00,697 INFO L85 PathProgramCache]: Analyzing trace with hash -190459156, now seen corresponding path program 196 times [2022-03-15 13:52:00,697 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:00,697 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450252108] [2022-03-15 13:52:00,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:00,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:00,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:00,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:00,802 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:00,802 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450252108] [2022-03-15 13:52:00,802 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450252108] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:00,802 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:00,802 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:00,802 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625435284] [2022-03-15 13:52:00,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:00,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:00,802 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:00,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:00,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:00,802 INFO L87 Difference]: Start difference. First operand 8992 states and 24267 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:01,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:01,191 INFO L93 Difference]: Finished difference Result 11420 states and 30751 transitions. [2022-03-15 13:52:01,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-15 13:52:01,191 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:01,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:01,208 INFO L225 Difference]: With dead ends: 11420 [2022-03-15 13:52:01,208 INFO L226 Difference]: Without dead ends: 10910 [2022-03-15 13:52:01,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=292, Invalid=898, Unknown=0, NotChecked=0, Total=1190 [2022-03-15 13:52:01,209 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 200 mSDsluCounter, 2667 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 2916 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:01,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 2916 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:01,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10910 states. [2022-03-15 13:52:01,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10910 to 8964. [2022-03-15 13:52:01,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8964 states, 8963 states have (on average 2.7015508200379337) internal successors, (24214), 8963 states have internal predecessors, (24214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:01,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8964 states to 8964 states and 24214 transitions. [2022-03-15 13:52:01,347 INFO L78 Accepts]: Start accepts. Automaton has 8964 states and 24214 transitions. Word has length 109 [2022-03-15 13:52:01,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:01,347 INFO L470 AbstractCegarLoop]: Abstraction has 8964 states and 24214 transitions. [2022-03-15 13:52:01,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:01,347 INFO L276 IsEmpty]: Start isEmpty. Operand 8964 states and 24214 transitions. [2022-03-15 13:52:01,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:01,358 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:01,358 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:01,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2022-03-15 13:52:01,358 INFO L402 AbstractCegarLoop]: === Iteration 246 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:01,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:01,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1602299128, now seen corresponding path program 197 times [2022-03-15 13:52:01,358 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:01,359 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926954522] [2022-03-15 13:52:01,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:01,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:01,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:01,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:01,467 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:01,467 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926954522] [2022-03-15 13:52:01,467 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926954522] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:01,467 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:01,467 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:01,468 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896942424] [2022-03-15 13:52:01,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:01,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:01,468 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:01,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:01,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:01,468 INFO L87 Difference]: Start difference. First operand 8964 states and 24214 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:01,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:01,948 INFO L93 Difference]: Finished difference Result 11530 states and 31069 transitions. [2022-03-15 13:52:01,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:52:01,948 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:01,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:01,965 INFO L225 Difference]: With dead ends: 11530 [2022-03-15 13:52:01,965 INFO L226 Difference]: Without dead ends: 11045 [2022-03-15 13:52:01,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=338, Invalid=994, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:52:01,966 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 272 mSDsluCounter, 3154 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 3413 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:01,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [272 Valid, 3413 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:01,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11045 states. [2022-03-15 13:52:02,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11045 to 8996. [2022-03-15 13:52:02,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.7012784880489162) internal successors, (24298), 8995 states have internal predecessors, (24298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:02,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24298 transitions. [2022-03-15 13:52:02,107 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24298 transitions. Word has length 109 [2022-03-15 13:52:02,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:02,107 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24298 transitions. [2022-03-15 13:52:02,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:02,108 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24298 transitions. [2022-03-15 13:52:02,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:02,119 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:02,119 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:02,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2022-03-15 13:52:02,119 INFO L402 AbstractCegarLoop]: === Iteration 247 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:02,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:02,119 INFO L85 PathProgramCache]: Analyzing trace with hash -920678474, now seen corresponding path program 198 times [2022-03-15 13:52:02,119 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:02,119 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113383066] [2022-03-15 13:52:02,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:02,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:02,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:02,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:02,222 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:02,222 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113383066] [2022-03-15 13:52:02,222 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113383066] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:02,222 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:02,222 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:02,223 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968090935] [2022-03-15 13:52:02,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:02,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:02,223 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:02,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:02,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:02,223 INFO L87 Difference]: Start difference. First operand 8996 states and 24298 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:02,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:02,676 INFO L93 Difference]: Finished difference Result 11496 states and 30980 transitions. [2022-03-15 13:52:02,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:52:02,676 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:02,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:02,693 INFO L225 Difference]: With dead ends: 11496 [2022-03-15 13:52:02,693 INFO L226 Difference]: Without dead ends: 11010 [2022-03-15 13:52:02,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=337, Invalid=1145, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:52:02,693 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 273 mSDsluCounter, 2946 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 3218 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:02,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [273 Valid, 3218 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:02,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11010 states. [2022-03-15 13:52:02,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11010 to 8992. [2022-03-15 13:52:02,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7012568123679235) internal successors, (24287), 8991 states have internal predecessors, (24287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:02,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24287 transitions. [2022-03-15 13:52:02,831 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24287 transitions. Word has length 109 [2022-03-15 13:52:02,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:02,831 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24287 transitions. [2022-03-15 13:52:02,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:02,831 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24287 transitions. [2022-03-15 13:52:02,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:02,842 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:02,842 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:02,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2022-03-15 13:52:02,842 INFO L402 AbstractCegarLoop]: === Iteration 248 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:02,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:02,843 INFO L85 PathProgramCache]: Analyzing trace with hash -219990918, now seen corresponding path program 199 times [2022-03-15 13:52:02,843 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:02,843 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333408659] [2022-03-15 13:52:02,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:02,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:02,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:02,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:02,949 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:02,949 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333408659] [2022-03-15 13:52:02,949 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333408659] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:02,949 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:02,949 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:02,949 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342456284] [2022-03-15 13:52:02,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:02,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:02,949 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:02,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:02,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:02,949 INFO L87 Difference]: Start difference. First operand 8992 states and 24287 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:03,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:03,550 INFO L93 Difference]: Finished difference Result 11532 states and 31075 transitions. [2022-03-15 13:52:03,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:52:03,550 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:03,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:03,568 INFO L225 Difference]: With dead ends: 11532 [2022-03-15 13:52:03,568 INFO L226 Difference]: Without dead ends: 11006 [2022-03-15 13:52:03,568 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=482, Invalid=1588, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:52:03,568 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 324 mSDsluCounter, 2951 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 3233 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:03,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [324 Valid, 3233 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:03,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11006 states. [2022-03-15 13:52:03,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11006 to 8988. [2022-03-15 13:52:03,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7012351173917883) internal successors, (24276), 8987 states have internal predecessors, (24276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:03,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24276 transitions. [2022-03-15 13:52:03,734 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24276 transitions. Word has length 109 [2022-03-15 13:52:03,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:03,734 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24276 transitions. [2022-03-15 13:52:03,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:03,734 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24276 transitions. [2022-03-15 13:52:03,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:03,744 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:03,744 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:03,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2022-03-15 13:52:03,745 INFO L402 AbstractCegarLoop]: === Iteration 249 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:03,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:03,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1930899914, now seen corresponding path program 200 times [2022-03-15 13:52:03,745 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:03,745 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864217373] [2022-03-15 13:52:03,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:03,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:03,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:03,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:03,857 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:03,857 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864217373] [2022-03-15 13:52:03,857 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864217373] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:03,857 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:03,857 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:03,857 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074450647] [2022-03-15 13:52:03,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:03,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:03,857 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:03,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:03,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:03,857 INFO L87 Difference]: Start difference. First operand 8988 states and 24276 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:04,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:04,468 INFO L93 Difference]: Finished difference Result 11704 states and 31520 transitions. [2022-03-15 13:52:04,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-15 13:52:04,469 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:04,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:04,485 INFO L225 Difference]: With dead ends: 11704 [2022-03-15 13:52:04,486 INFO L226 Difference]: Without dead ends: 11138 [2022-03-15 13:52:04,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 693 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=639, Invalid=2117, Unknown=0, NotChecked=0, Total=2756 [2022-03-15 13:52:04,486 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 401 mSDsluCounter, 3505 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 3785 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:04,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [401 Valid, 3785 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:04,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11138 states. [2022-03-15 13:52:04,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11138 to 8984. [2022-03-15 13:52:04,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7012134030947346) internal successors, (24265), 8983 states have internal predecessors, (24265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:04,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24265 transitions. [2022-03-15 13:52:04,630 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24265 transitions. Word has length 109 [2022-03-15 13:52:04,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:04,630 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24265 transitions. [2022-03-15 13:52:04,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:04,630 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24265 transitions. [2022-03-15 13:52:04,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:04,643 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:04,643 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:04,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2022-03-15 13:52:04,643 INFO L402 AbstractCegarLoop]: === Iteration 250 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:04,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:04,643 INFO L85 PathProgramCache]: Analyzing trace with hash -571654898, now seen corresponding path program 201 times [2022-03-15 13:52:04,643 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:04,643 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024457037] [2022-03-15 13:52:04,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:04,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:04,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:04,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:04,761 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:04,761 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024457037] [2022-03-15 13:52:04,761 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024457037] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:04,761 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:04,761 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:04,762 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209912235] [2022-03-15 13:52:04,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:04,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:04,762 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:04,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:04,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:04,762 INFO L87 Difference]: Start difference. First operand 8984 states and 24265 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:05,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:05,271 INFO L93 Difference]: Finished difference Result 11606 states and 31274 transitions. [2022-03-15 13:52:05,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:52:05,272 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:05,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:05,290 INFO L225 Difference]: With dead ends: 11606 [2022-03-15 13:52:05,290 INFO L226 Difference]: Without dead ends: 11121 [2022-03-15 13:52:05,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=355, Invalid=1051, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:52:05,291 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 282 mSDsluCounter, 2967 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 3231 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:05,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 3231 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:05,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11121 states. [2022-03-15 13:52:05,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11121 to 8996. [2022-03-15 13:52:05,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.700833796553641) internal successors, (24294), 8995 states have internal predecessors, (24294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:05,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24294 transitions. [2022-03-15 13:52:05,411 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24294 transitions. Word has length 109 [2022-03-15 13:52:05,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:05,411 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24294 transitions. [2022-03-15 13:52:05,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:05,411 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24294 transitions. [2022-03-15 13:52:05,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:05,422 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:05,422 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:05,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2022-03-15 13:52:05,422 INFO L402 AbstractCegarLoop]: === Iteration 251 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:05,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:05,423 INFO L85 PathProgramCache]: Analyzing trace with hash 109965756, now seen corresponding path program 202 times [2022-03-15 13:52:05,423 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:05,423 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698020351] [2022-03-15 13:52:05,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:05,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:05,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:05,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:05,523 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:05,524 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698020351] [2022-03-15 13:52:05,524 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698020351] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:05,524 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:05,524 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:05,524 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27210392] [2022-03-15 13:52:05,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:05,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:05,524 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:05,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:05,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:05,524 INFO L87 Difference]: Start difference. First operand 8996 states and 24294 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:05,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:05,969 INFO L93 Difference]: Finished difference Result 11564 states and 31163 transitions. [2022-03-15 13:52:05,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:52:05,970 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:05,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:05,987 INFO L225 Difference]: With dead ends: 11564 [2022-03-15 13:52:05,987 INFO L226 Difference]: Without dead ends: 11078 [2022-03-15 13:52:05,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:52:05,988 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 267 mSDsluCounter, 3165 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 3437 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:05,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 3437 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:06,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11078 states. [2022-03-15 13:52:06,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11078 to 8992. [2022-03-15 13:52:06,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7008119230341454) internal successors, (24283), 8991 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:06,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-03-15 13:52:06,120 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-03-15 13:52:06,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:06,120 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-03-15 13:52:06,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:06,120 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-03-15 13:52:06,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:06,132 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:06,132 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:06,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2022-03-15 13:52:06,132 INFO L402 AbstractCegarLoop]: === Iteration 252 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:06,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:06,132 INFO L85 PathProgramCache]: Analyzing trace with hash 810653312, now seen corresponding path program 203 times [2022-03-15 13:52:06,132 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:06,132 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393316686] [2022-03-15 13:52:06,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:06,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:06,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:06,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:06,241 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:06,241 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393316686] [2022-03-15 13:52:06,241 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393316686] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:06,241 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:06,241 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:06,241 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732902437] [2022-03-15 13:52:06,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:06,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:06,241 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:06,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:06,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:06,241 INFO L87 Difference]: Start difference. First operand 8992 states and 24283 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:06,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:06,817 INFO L93 Difference]: Finished difference Result 11692 states and 31495 transitions. [2022-03-15 13:52:06,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:52:06,817 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:06,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:06,837 INFO L225 Difference]: With dead ends: 11692 [2022-03-15 13:52:06,837 INFO L226 Difference]: Without dead ends: 11166 [2022-03-15 13:52:06,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=469, Invalid=1511, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 13:52:06,837 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 351 mSDsluCounter, 3014 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 3293 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:06,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 3293 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:06,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11166 states. [2022-03-15 13:52:06,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11166 to 8988. [2022-03-15 13:52:06,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:07,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-03-15 13:52:07,000 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-03-15 13:52:07,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:07,000 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-03-15 13:52:07,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:07,000 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-03-15 13:52:07,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:07,013 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:07,013 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:07,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2022-03-15 13:52:07,013 INFO L402 AbstractCegarLoop]: === Iteration 253 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:07,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:07,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1888341340, now seen corresponding path program 204 times [2022-03-15 13:52:07,013 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:07,013 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119495582] [2022-03-15 13:52:07,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:07,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:07,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:07,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:07,122 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:07,122 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119495582] [2022-03-15 13:52:07,122 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119495582] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:07,122 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:07,122 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:07,122 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094708945] [2022-03-15 13:52:07,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:07,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:07,123 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:07,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:07,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:07,123 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:07,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:07,688 INFO L93 Difference]: Finished difference Result 11694 states and 31487 transitions. [2022-03-15 13:52:07,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-15 13:52:07,688 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:07,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:07,705 INFO L225 Difference]: With dead ends: 11694 [2022-03-15 13:52:07,705 INFO L226 Difference]: Without dead ends: 11166 [2022-03-15 13:52:07,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=518, Invalid=1552, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:52:07,706 INFO L933 BasicCegarLoop]: 333 mSDtfsCounter, 341 mSDsluCounter, 3057 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 3322 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:07,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [341 Valid, 3322 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:07,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11166 states. [2022-03-15 13:52:07,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11166 to 8992. [2022-03-15 13:52:07,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.700367033700367) internal successors, (24279), 8991 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:07,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-03-15 13:52:07,850 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-03-15 13:52:07,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:07,850 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-03-15 13:52:07,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:07,850 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-03-15 13:52:07,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:07,862 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:07,862 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:07,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2022-03-15 13:52:07,862 INFO L402 AbstractCegarLoop]: === Iteration 254 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:07,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:07,862 INFO L85 PathProgramCache]: Analyzing trace with hash -619691002, now seen corresponding path program 205 times [2022-03-15 13:52:07,862 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:07,862 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277190413] [2022-03-15 13:52:07,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:07,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:07,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:07,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:07,972 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:07,972 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277190413] [2022-03-15 13:52:07,972 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277190413] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:07,972 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:07,972 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:07,972 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643636223] [2022-03-15 13:52:07,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:07,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:07,972 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:07,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:07,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:07,973 INFO L87 Difference]: Start difference. First operand 8992 states and 24279 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:08,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:08,456 INFO L93 Difference]: Finished difference Result 11546 states and 31101 transitions. [2022-03-15 13:52:08,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:52:08,457 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:08,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:08,471 INFO L225 Difference]: With dead ends: 11546 [2022-03-15 13:52:08,472 INFO L226 Difference]: Without dead ends: 11061 [2022-03-15 13:52:08,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=374, Invalid=1108, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:52:08,472 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 275 mSDsluCounter, 3382 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 3645 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:08,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 3645 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:08,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11061 states. [2022-03-15 13:52:08,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11061 to 8996. [2022-03-15 13:52:08,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.699944413563091) internal successors, (24286), 8995 states have internal predecessors, (24286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:08,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24286 transitions. [2022-03-15 13:52:08,594 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24286 transitions. Word has length 109 [2022-03-15 13:52:08,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:08,594 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24286 transitions. [2022-03-15 13:52:08,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:08,594 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24286 transitions. [2022-03-15 13:52:08,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:08,604 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:08,604 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:08,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2022-03-15 13:52:08,604 INFO L402 AbstractCegarLoop]: === Iteration 255 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:08,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:08,604 INFO L85 PathProgramCache]: Analyzing trace with hash 61929652, now seen corresponding path program 206 times [2022-03-15 13:52:08,605 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:08,605 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317632020] [2022-03-15 13:52:08,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:08,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:08,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:08,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:08,706 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:08,706 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317632020] [2022-03-15 13:52:08,706 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317632020] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:08,706 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:08,706 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:08,706 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156496187] [2022-03-15 13:52:08,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:08,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:08,706 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:08,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:08,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:08,707 INFO L87 Difference]: Start difference. First operand 8996 states and 24286 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:09,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:09,167 INFO L93 Difference]: Finished difference Result 11464 states and 30880 transitions. [2022-03-15 13:52:09,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:52:09,167 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:09,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:09,183 INFO L225 Difference]: With dead ends: 11464 [2022-03-15 13:52:09,183 INFO L226 Difference]: Without dead ends: 10966 [2022-03-15 13:52:09,183 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=323, Invalid=1083, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:52:09,183 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 262 mSDsluCounter, 3150 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 3419 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:09,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 3419 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:09,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10966 states. [2022-03-15 13:52:09,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10966 to 8980. [2022-03-15 13:52:09,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.701191669450941) internal successors, (24254), 8979 states have internal predecessors, (24254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:09,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24254 transitions. [2022-03-15 13:52:09,309 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24254 transitions. Word has length 109 [2022-03-15 13:52:09,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:09,309 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24254 transitions. [2022-03-15 13:52:09,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:09,309 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24254 transitions. [2022-03-15 13:52:09,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:09,320 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:09,320 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:09,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2022-03-15 13:52:09,320 INFO L402 AbstractCegarLoop]: === Iteration 256 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:09,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:09,320 INFO L85 PathProgramCache]: Analyzing trace with hash 510289414, now seen corresponding path program 207 times [2022-03-15 13:52:09,320 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:09,320 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887434450] [2022-03-15 13:52:09,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:09,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:09,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:09,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:09,433 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:09,433 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887434450] [2022-03-15 13:52:09,433 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887434450] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:09,433 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:09,433 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:09,433 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913620529] [2022-03-15 13:52:09,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:09,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:09,434 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:09,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:09,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:09,435 INFO L87 Difference]: Start difference. First operand 8980 states and 24254 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:09,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:09,910 INFO L93 Difference]: Finished difference Result 11482 states and 30933 transitions. [2022-03-15 13:52:09,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:52:09,911 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:09,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:09,926 INFO L225 Difference]: With dead ends: 11482 [2022-03-15 13:52:09,926 INFO L226 Difference]: Without dead ends: 10997 [2022-03-15 13:52:09,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=351, Invalid=1055, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:52:09,927 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 272 mSDsluCounter, 3371 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 3630 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:09,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [272 Valid, 3630 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:09,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10997 states. [2022-03-15 13:52:10,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10997 to 8996. [2022-03-15 13:52:10,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.700833796553641) internal successors, (24294), 8995 states have internal predecessors, (24294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:10,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24294 transitions. [2022-03-15 13:52:10,052 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24294 transitions. Word has length 109 [2022-03-15 13:52:10,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:10,053 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24294 transitions. [2022-03-15 13:52:10,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:10,053 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24294 transitions. [2022-03-15 13:52:10,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:10,063 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:10,063 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:10,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2022-03-15 13:52:10,064 INFO L402 AbstractCegarLoop]: === Iteration 257 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:10,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:10,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1191910068, now seen corresponding path program 208 times [2022-03-15 13:52:10,064 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:10,064 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024312700] [2022-03-15 13:52:10,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:10,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:10,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:10,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:10,166 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:10,166 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024312700] [2022-03-15 13:52:10,166 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024312700] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:10,166 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:10,166 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:10,166 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419372558] [2022-03-15 13:52:10,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:10,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:10,166 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:10,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:10,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:10,167 INFO L87 Difference]: Start difference. First operand 8996 states and 24294 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:10,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:10,619 INFO L93 Difference]: Finished difference Result 11440 states and 30822 transitions. [2022-03-15 13:52:10,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:52:10,620 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:10,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:10,637 INFO L225 Difference]: With dead ends: 11440 [2022-03-15 13:52:10,638 INFO L226 Difference]: Without dead ends: 10954 [2022-03-15 13:52:10,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=348, Invalid=1134, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:52:10,638 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 263 mSDsluCounter, 2954 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 3227 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:10,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 3227 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:10,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10954 states. [2022-03-15 13:52:10,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10954 to 8992. [2022-03-15 13:52:10,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7008119230341454) internal successors, (24283), 8991 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:10,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-03-15 13:52:10,782 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-03-15 13:52:10,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:10,782 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-03-15 13:52:10,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:10,782 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-03-15 13:52:10,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:10,794 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:10,794 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:10,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2022-03-15 13:52:10,794 INFO L402 AbstractCegarLoop]: === Iteration 258 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:10,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:10,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1892597624, now seen corresponding path program 209 times [2022-03-15 13:52:10,794 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:10,794 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903921148] [2022-03-15 13:52:10,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:10,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:10,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:10,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:10,899 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:10,899 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903921148] [2022-03-15 13:52:10,899 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903921148] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:10,899 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:10,899 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:10,899 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506702541] [2022-03-15 13:52:10,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:10,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:10,900 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:10,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:10,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:10,900 INFO L87 Difference]: Start difference. First operand 8992 states and 24283 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:11,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:11,425 INFO L93 Difference]: Finished difference Result 11568 states and 31154 transitions. [2022-03-15 13:52:11,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-15 13:52:11,426 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:11,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:11,443 INFO L225 Difference]: With dead ends: 11568 [2022-03-15 13:52:11,444 INFO L226 Difference]: Without dead ends: 11042 [2022-03-15 13:52:11,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=458, Invalid=1434, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 13:52:11,444 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 348 mSDsluCounter, 2212 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 2499 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:11,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [348 Valid, 2499 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:11,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11042 states. [2022-03-15 13:52:11,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11042 to 8988. [2022-03-15 13:52:11,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:11,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-03-15 13:52:11,582 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-03-15 13:52:11,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:11,582 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-03-15 13:52:11,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:11,582 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-03-15 13:52:11,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:11,593 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:11,593 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:11,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2022-03-15 13:52:11,593 INFO L402 AbstractCegarLoop]: === Iteration 259 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:11,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:11,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1324681644, now seen corresponding path program 210 times [2022-03-15 13:52:11,594 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:11,594 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496402529] [2022-03-15 13:52:11,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:11,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:11,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:11,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:11,693 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:11,693 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496402529] [2022-03-15 13:52:11,694 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496402529] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:11,694 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:11,694 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:11,694 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205936097] [2022-03-15 13:52:11,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:11,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:11,694 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:11,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:11,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:11,694 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:12,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:12,280 INFO L93 Difference]: Finished difference Result 11650 states and 31366 transitions. [2022-03-15 13:52:12,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:52:12,280 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:12,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:12,297 INFO L225 Difference]: With dead ends: 11650 [2022-03-15 13:52:12,297 INFO L226 Difference]: Without dead ends: 11122 [2022-03-15 13:52:12,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=531, Invalid=1631, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 13:52:12,298 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 330 mSDsluCounter, 3274 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 3538 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:12,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [330 Valid, 3538 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:12,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11122 states. [2022-03-15 13:52:12,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11122 to 8992. [2022-03-15 13:52:12,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.700367033700367) internal successors, (24279), 8991 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:12,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-03-15 13:52:12,438 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-03-15 13:52:12,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:12,438 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-03-15 13:52:12,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:12,438 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-03-15 13:52:12,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:12,448 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:12,448 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:12,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2022-03-15 13:52:12,449 INFO L402 AbstractCegarLoop]: === Iteration 260 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:12,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:12,449 INFO L85 PathProgramCache]: Analyzing trace with hash 462253310, now seen corresponding path program 211 times [2022-03-15 13:52:12,449 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:12,449 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61209413] [2022-03-15 13:52:12,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:12,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:12,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:12,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:12,555 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:12,555 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61209413] [2022-03-15 13:52:12,555 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61209413] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:12,555 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:12,555 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:12,555 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021783288] [2022-03-15 13:52:12,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:12,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:12,555 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:12,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:12,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:12,555 INFO L87 Difference]: Start difference. First operand 8992 states and 24279 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:13,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:13,033 INFO L93 Difference]: Finished difference Result 11486 states and 30936 transitions. [2022-03-15 13:52:13,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:52:13,033 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:13,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:13,051 INFO L225 Difference]: With dead ends: 11486 [2022-03-15 13:52:13,051 INFO L226 Difference]: Without dead ends: 11001 [2022-03-15 13:52:13,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=370, Invalid=1112, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:52:13,051 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 275 mSDsluCounter, 2410 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 2687 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:13,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 2687 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:13,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11001 states. [2022-03-15 13:52:13,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11001 to 8996. [2022-03-15 13:52:13,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.699944413563091) internal successors, (24286), 8995 states have internal predecessors, (24286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:13,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24286 transitions. [2022-03-15 13:52:13,202 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24286 transitions. Word has length 109 [2022-03-15 13:52:13,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:13,202 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24286 transitions. [2022-03-15 13:52:13,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:13,203 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24286 transitions. [2022-03-15 13:52:13,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:13,214 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:13,214 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:13,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2022-03-15 13:52:13,214 INFO L402 AbstractCegarLoop]: === Iteration 261 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:13,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:13,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1143873964, now seen corresponding path program 212 times [2022-03-15 13:52:13,214 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:13,215 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351761935] [2022-03-15 13:52:13,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:13,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:13,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:13,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:13,316 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:13,316 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351761935] [2022-03-15 13:52:13,316 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351761935] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:13,316 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:13,316 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:13,316 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263414319] [2022-03-15 13:52:13,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:13,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:13,316 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:13,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:13,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:13,316 INFO L87 Difference]: Start difference. First operand 8996 states and 24286 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:13,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:13,756 INFO L93 Difference]: Finished difference Result 11420 states and 30759 transitions. [2022-03-15 13:52:13,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:52:13,757 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:13,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:13,773 INFO L225 Difference]: With dead ends: 11420 [2022-03-15 13:52:13,773 INFO L226 Difference]: Without dead ends: 10926 [2022-03-15 13:52:13,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=329, Invalid=1077, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:52:13,773 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 261 mSDsluCounter, 3367 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 3634 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:13,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 3634 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:13,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10926 states. [2022-03-15 13:52:13,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10926 to 8984. [2022-03-15 13:52:13,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7007681175553824) internal successors, (24261), 8983 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:13,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-03-15 13:52:13,906 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-03-15 13:52:13,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:13,906 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-03-15 13:52:13,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:13,906 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-03-15 13:52:13,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:13,917 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:13,917 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:13,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2022-03-15 13:52:13,917 INFO L402 AbstractCegarLoop]: === Iteration 262 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:13,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:13,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1466807816, now seen corresponding path program 213 times [2022-03-15 13:52:13,917 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:13,917 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558231351] [2022-03-15 13:52:13,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:13,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:13,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:14,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:14,016 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:14,016 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558231351] [2022-03-15 13:52:14,016 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558231351] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:14,016 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:14,016 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:14,017 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938283199] [2022-03-15 13:52:14,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:14,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:14,017 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:14,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:14,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:14,017 INFO L87 Difference]: Start difference. First operand 8984 states and 24261 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:14,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:14,629 INFO L93 Difference]: Finished difference Result 11535 states and 31031 transitions. [2022-03-15 13:52:14,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-15 13:52:14,629 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:14,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:14,645 INFO L225 Difference]: With dead ends: 11535 [2022-03-15 13:52:14,645 INFO L226 Difference]: Without dead ends: 10964 [2022-03-15 13:52:14,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=684, Invalid=1968, Unknown=0, NotChecked=0, Total=2652 [2022-03-15 13:52:14,646 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 399 mSDsluCounter, 2465 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 2741 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:14,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [399 Valid, 2741 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:14,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10964 states. [2022-03-15 13:52:14,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10964 to 8988. [2022-03-15 13:52:14,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:14,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-03-15 13:52:14,780 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-03-15 13:52:14,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:14,780 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-03-15 13:52:14,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:14,781 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-03-15 13:52:14,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:14,791 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:14,791 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:14,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2022-03-15 13:52:14,791 INFO L402 AbstractCegarLoop]: === Iteration 263 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:14,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:14,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1038597026, now seen corresponding path program 214 times [2022-03-15 13:52:14,792 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:14,792 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430040470] [2022-03-15 13:52:14,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:14,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:14,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:14,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:14,891 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:14,891 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430040470] [2022-03-15 13:52:14,891 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430040470] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:14,891 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:14,891 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:14,891 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584014298] [2022-03-15 13:52:14,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:14,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:14,891 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:14,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:14,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:14,892 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:15,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:15,468 INFO L93 Difference]: Finished difference Result 11546 states and 31076 transitions. [2022-03-15 13:52:15,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:52:15,469 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:15,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:15,486 INFO L225 Difference]: With dead ends: 11546 [2022-03-15 13:52:15,486 INFO L226 Difference]: Without dead ends: 11018 [2022-03-15 13:52:15,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=545, Invalid=1711, Unknown=0, NotChecked=0, Total=2256 [2022-03-15 13:52:15,486 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 361 mSDsluCounter, 3389 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 3649 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:15,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 3649 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:15,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11018 states. [2022-03-15 13:52:15,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11018 to 8992. [2022-03-15 13:52:15,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.699922144366589) internal successors, (24275), 8991 states have internal predecessors, (24275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:15,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24275 transitions. [2022-03-15 13:52:15,631 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24275 transitions. Word has length 109 [2022-03-15 13:52:15,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:15,631 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24275 transitions. [2022-03-15 13:52:15,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:15,631 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24275 transitions. [2022-03-15 13:52:15,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:15,643 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:15,643 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:15,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2022-03-15 13:52:15,643 INFO L402 AbstractCegarLoop]: === Iteration 264 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:15,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:15,643 INFO L85 PathProgramCache]: Analyzing trace with hash 748337928, now seen corresponding path program 215 times [2022-03-15 13:52:15,643 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:15,643 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388627006] [2022-03-15 13:52:15,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:15,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:15,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:15,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:15,744 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:15,744 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388627006] [2022-03-15 13:52:15,744 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388627006] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:15,744 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:15,744 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:15,744 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000123204] [2022-03-15 13:52:15,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:15,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:15,744 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:15,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:15,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:15,745 INFO L87 Difference]: Start difference. First operand 8992 states and 24275 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:16,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:16,206 INFO L93 Difference]: Finished difference Result 11382 states and 30646 transitions. [2022-03-15 13:52:16,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:52:16,206 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:16,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:16,222 INFO L225 Difference]: With dead ends: 11382 [2022-03-15 13:52:16,222 INFO L226 Difference]: Without dead ends: 10897 [2022-03-15 13:52:16,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=369, Invalid=1191, Unknown=0, NotChecked=0, Total=1560 [2022-03-15 13:52:16,222 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 270 mSDsluCounter, 2982 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 3245 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:16,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 3245 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:16,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10897 states. [2022-03-15 13:52:16,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10897 to 8996. [2022-03-15 13:52:16,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.6994997220678156) internal successors, (24282), 8995 states have internal predecessors, (24282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:16,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24282 transitions. [2022-03-15 13:52:16,349 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24282 transitions. Word has length 109 [2022-03-15 13:52:16,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:16,349 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24282 transitions. [2022-03-15 13:52:16,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:16,349 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24282 transitions. [2022-03-15 13:52:16,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:16,359 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:16,359 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:16,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2022-03-15 13:52:16,360 INFO L402 AbstractCegarLoop]: === Iteration 265 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:16,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:16,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1429958582, now seen corresponding path program 216 times [2022-03-15 13:52:16,360 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:16,360 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224422970] [2022-03-15 13:52:16,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:16,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:16,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:16,457 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:16,457 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224422970] [2022-03-15 13:52:16,457 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224422970] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:16,457 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:16,457 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:16,457 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849679777] [2022-03-15 13:52:16,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:16,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:16,457 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:16,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:16,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:16,458 INFO L87 Difference]: Start difference. First operand 8996 states and 24282 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:16,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:16,837 INFO L93 Difference]: Finished difference Result 11316 states and 30469 transitions. [2022-03-15 13:52:16,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:52:16,837 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:16,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:16,852 INFO L225 Difference]: With dead ends: 11316 [2022-03-15 13:52:16,852 INFO L226 Difference]: Without dead ends: 10814 [2022-03-15 13:52:16,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=313, Invalid=1019, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:52:16,853 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 267 mSDsluCounter, 2521 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 2791 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:16,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 2791 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:16,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10814 states. [2022-03-15 13:52:16,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10814 to 8976. [2022-03-15 13:52:16,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8976 states, 8975 states have (on average 2.7011699164345404) internal successors, (24243), 8975 states have internal predecessors, (24243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:16,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8976 states to 8976 states and 24243 transitions. [2022-03-15 13:52:16,998 INFO L78 Accepts]: Start accepts. Automaton has 8976 states and 24243 transitions. Word has length 109 [2022-03-15 13:52:16,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:16,998 INFO L470 AbstractCegarLoop]: Abstraction has 8976 states and 24243 transitions. [2022-03-15 13:52:16,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:16,998 INFO L276 IsEmpty]: Start isEmpty. Operand 8976 states and 24243 transitions. [2022-03-15 13:52:17,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:17,010 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:17,010 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:17,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2022-03-15 13:52:17,010 INFO L402 AbstractCegarLoop]: === Iteration 266 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:17,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:17,010 INFO L85 PathProgramCache]: Analyzing trace with hash 417121160, now seen corresponding path program 217 times [2022-03-15 13:52:17,010 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:17,011 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015678834] [2022-03-15 13:52:17,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:17,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:17,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:17,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:17,120 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:17,120 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015678834] [2022-03-15 13:52:17,120 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015678834] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:17,120 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:17,120 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:17,120 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595598759] [2022-03-15 13:52:17,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:17,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:17,120 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:17,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:17,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:17,121 INFO L87 Difference]: Start difference. First operand 8976 states and 24243 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:17,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:17,549 INFO L93 Difference]: Finished difference Result 11594 states and 31241 transitions. [2022-03-15 13:52:17,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:52:17,549 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:17,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:17,565 INFO L225 Difference]: With dead ends: 11594 [2022-03-15 13:52:17,565 INFO L226 Difference]: Without dead ends: 11109 [2022-03-15 13:52:17,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=342, Invalid=990, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:52:17,565 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 306 mSDsluCounter, 2830 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 3086 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:17,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [306 Valid, 3086 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:17,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11109 states. [2022-03-15 13:52:17,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11109 to 8996. [2022-03-15 13:52:17,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.700833796553641) internal successors, (24294), 8995 states have internal predecessors, (24294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:17,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24294 transitions. [2022-03-15 13:52:17,687 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24294 transitions. Word has length 109 [2022-03-15 13:52:17,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:17,687 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24294 transitions. [2022-03-15 13:52:17,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:17,687 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24294 transitions. [2022-03-15 13:52:17,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:17,697 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:17,697 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:17,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2022-03-15 13:52:17,697 INFO L402 AbstractCegarLoop]: === Iteration 267 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:17,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:17,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1098741814, now seen corresponding path program 218 times [2022-03-15 13:52:17,697 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:17,697 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39642602] [2022-03-15 13:52:17,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:17,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:17,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:17,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:17,799 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:17,799 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39642602] [2022-03-15 13:52:17,799 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39642602] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:17,799 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:17,799 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:17,799 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790268461] [2022-03-15 13:52:17,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:17,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:17,799 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:17,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:17,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:17,799 INFO L87 Difference]: Start difference. First operand 8996 states and 24294 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:18,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:18,230 INFO L93 Difference]: Finished difference Result 11560 states and 31152 transitions. [2022-03-15 13:52:18,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:52:18,230 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:18,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:18,247 INFO L225 Difference]: With dead ends: 11560 [2022-03-15 13:52:18,247 INFO L226 Difference]: Without dead ends: 11074 [2022-03-15 13:52:18,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=331, Invalid=1151, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:52:18,248 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 284 mSDsluCounter, 3322 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 3582 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:18,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [284 Valid, 3582 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:18,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11074 states. [2022-03-15 13:52:18,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11074 to 8992. [2022-03-15 13:52:18,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7008119230341454) internal successors, (24283), 8991 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:18,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-03-15 13:52:18,380 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-03-15 13:52:18,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:18,380 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-03-15 13:52:18,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:18,380 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-03-15 13:52:18,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:18,391 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:18,391 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:18,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2022-03-15 13:52:18,391 INFO L402 AbstractCegarLoop]: === Iteration 268 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:18,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:18,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1799429370, now seen corresponding path program 219 times [2022-03-15 13:52:18,391 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:18,391 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562895173] [2022-03-15 13:52:18,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:18,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:18,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:18,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:18,500 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:18,500 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562895173] [2022-03-15 13:52:18,500 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562895173] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:18,500 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:18,500 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:18,501 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127028220] [2022-03-15 13:52:18,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:18,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:18,501 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:18,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:18,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:18,501 INFO L87 Difference]: Start difference. First operand 8992 states and 24283 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:19,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:19,091 INFO L93 Difference]: Finished difference Result 11596 states and 31247 transitions. [2022-03-15 13:52:19,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:52:19,092 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:19,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:19,108 INFO L225 Difference]: With dead ends: 11596 [2022-03-15 13:52:19,108 INFO L226 Difference]: Without dead ends: 11070 [2022-03-15 13:52:19,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=471, Invalid=1599, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:52:19,109 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 343 mSDsluCounter, 3412 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 3680 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:19,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 3680 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:19,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11070 states. [2022-03-15 13:52:19,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11070 to 8988. [2022-03-15 13:52:19,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:19,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-03-15 13:52:19,237 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-03-15 13:52:19,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:19,237 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-03-15 13:52:19,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:19,237 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-03-15 13:52:19,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:19,248 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:19,248 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:19,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2022-03-15 13:52:19,248 INFO L402 AbstractCegarLoop]: === Iteration 269 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:19,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:19,248 INFO L85 PathProgramCache]: Analyzing trace with hash -344647094, now seen corresponding path program 220 times [2022-03-15 13:52:19,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:19,248 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359216263] [2022-03-15 13:52:19,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:19,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:19,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:19,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:19,376 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:19,376 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359216263] [2022-03-15 13:52:19,376 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359216263] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:19,377 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:19,377 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:19,377 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28389575] [2022-03-15 13:52:19,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:19,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:19,377 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:19,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:19,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:19,377 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:19,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:19,977 INFO L93 Difference]: Finished difference Result 11824 states and 31846 transitions. [2022-03-15 13:52:19,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-15 13:52:19,977 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:19,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:19,993 INFO L225 Difference]: With dead ends: 11824 [2022-03-15 13:52:19,993 INFO L226 Difference]: Without dead ends: 11258 [2022-03-15 13:52:19,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 714 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=645, Invalid=2217, Unknown=0, NotChecked=0, Total=2862 [2022-03-15 13:52:19,993 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 422 mSDsluCounter, 3466 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 3739 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:19,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [422 Valid, 3739 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:20,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11258 states. [2022-03-15 13:52:20,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11258 to 8984. [2022-03-15 13:52:20,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7007681175553824) internal successors, (24261), 8983 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:20,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-03-15 13:52:20,118 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-03-15 13:52:20,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:20,118 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-03-15 13:52:20,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:20,119 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-03-15 13:52:20,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:20,129 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:20,129 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:20,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2022-03-15 13:52:20,129 INFO L402 AbstractCegarLoop]: === Iteration 270 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:20,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:20,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1447765390, now seen corresponding path program 221 times [2022-03-15 13:52:20,129 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:20,129 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089203149] [2022-03-15 13:52:20,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:20,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:20,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:20,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:20,234 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:20,234 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089203149] [2022-03-15 13:52:20,234 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089203149] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:20,234 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:20,234 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:20,234 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325331264] [2022-03-15 13:52:20,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:20,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:20,235 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:20,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:20,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:20,235 INFO L87 Difference]: Start difference. First operand 8984 states and 24261 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:20,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:20,696 INFO L93 Difference]: Finished difference Result 11570 states and 31171 transitions. [2022-03-15 13:52:20,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:52:20,696 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:20,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:20,713 INFO L225 Difference]: With dead ends: 11570 [2022-03-15 13:52:20,713 INFO L226 Difference]: Without dead ends: 11085 [2022-03-15 13:52:20,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=362, Invalid=1120, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:52:20,714 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 291 mSDsluCounter, 3320 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 3571 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:20,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 3571 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:20,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11085 states. [2022-03-15 13:52:20,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11085 to 8996. [2022-03-15 13:52:20,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.700389105058366) internal successors, (24290), 8995 states have internal predecessors, (24290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:20,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24290 transitions. [2022-03-15 13:52:20,856 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24290 transitions. Word has length 109 [2022-03-15 13:52:20,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:20,856 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24290 transitions. [2022-03-15 13:52:20,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:20,856 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24290 transitions. [2022-03-15 13:52:20,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:20,867 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:20,867 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:20,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2022-03-15 13:52:20,867 INFO L402 AbstractCegarLoop]: === Iteration 271 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:20,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:20,868 INFO L85 PathProgramCache]: Analyzing trace with hash 2129386044, now seen corresponding path program 222 times [2022-03-15 13:52:20,868 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:20,868 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681923265] [2022-03-15 13:52:20,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:20,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:20,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:20,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:20,973 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:20,973 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681923265] [2022-03-15 13:52:20,973 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681923265] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:20,973 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:20,973 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:20,973 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399997808] [2022-03-15 13:52:20,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:20,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:20,974 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:20,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:20,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:20,974 INFO L87 Difference]: Start difference. First operand 8996 states and 24290 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:21,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:21,441 INFO L93 Difference]: Finished difference Result 11528 states and 31060 transitions. [2022-03-15 13:52:21,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:52:21,442 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:21,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:21,459 INFO L225 Difference]: With dead ends: 11528 [2022-03-15 13:52:21,459 INFO L226 Difference]: Without dead ends: 11042 [2022-03-15 13:52:21,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=336, Invalid=1146, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:52:21,460 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 299 mSDsluCounter, 3111 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 3374 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:21,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [299 Valid, 3374 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:21,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11042 states. [2022-03-15 13:52:21,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11042 to 8992. [2022-03-15 13:52:21,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.700367033700367) internal successors, (24279), 8991 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:21,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-03-15 13:52:21,610 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-03-15 13:52:21,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:21,610 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-03-15 13:52:21,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:21,610 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-03-15 13:52:21,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:21,622 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:21,622 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:21,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2022-03-15 13:52:21,622 INFO L402 AbstractCegarLoop]: === Iteration 272 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:21,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:21,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1464893696, now seen corresponding path program 223 times [2022-03-15 13:52:21,623 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:21,623 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110118401] [2022-03-15 13:52:21,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:21,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:21,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:21,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:21,730 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:21,731 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110118401] [2022-03-15 13:52:21,731 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110118401] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:21,731 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:21,731 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:21,731 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993075551] [2022-03-15 13:52:21,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:21,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:21,731 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:21,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:21,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:21,731 INFO L87 Difference]: Start difference. First operand 8992 states and 24279 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:22,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:22,300 INFO L93 Difference]: Finished difference Result 11696 states and 31502 transitions. [2022-03-15 13:52:22,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:52:22,300 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:22,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:22,319 INFO L225 Difference]: With dead ends: 11696 [2022-03-15 13:52:22,319 INFO L226 Difference]: Without dead ends: 11170 [2022-03-15 13:52:22,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=458, Invalid=1522, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 13:52:22,320 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 360 mSDsluCounter, 3397 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 3663 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:22,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [360 Valid, 3663 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:22,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11170 states. [2022-03-15 13:52:22,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11170 to 8988. [2022-03-15 13:52:22,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:22,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-03-15 13:52:22,473 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-03-15 13:52:22,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:22,473 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-03-15 13:52:22,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:22,473 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-03-15 13:52:22,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:22,484 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:22,484 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:22,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2022-03-15 13:52:22,484 INFO L402 AbstractCegarLoop]: === Iteration 273 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:22,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:22,484 INFO L85 PathProgramCache]: Analyzing trace with hash -387205668, now seen corresponding path program 224 times [2022-03-15 13:52:22,484 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:22,484 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585767253] [2022-03-15 13:52:22,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:22,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:22,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:22,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:22,592 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:22,592 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585767253] [2022-03-15 13:52:22,592 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585767253] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:22,592 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:22,592 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:22,592 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189894225] [2022-03-15 13:52:22,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:22,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:22,592 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:22,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:22,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:22,592 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:23,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:23,160 INFO L93 Difference]: Finished difference Result 11594 states and 31208 transitions. [2022-03-15 13:52:23,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-15 13:52:23,160 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:23,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:23,179 INFO L225 Difference]: With dead ends: 11594 [2022-03-15 13:52:23,179 INFO L226 Difference]: Without dead ends: 11066 [2022-03-15 13:52:23,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=503, Invalid=1389, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 13:52:23,180 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 375 mSDsluCounter, 2856 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 3117 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:23,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 3117 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:23,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11066 states. [2022-03-15 13:52:23,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11066 to 8992. [2022-03-15 13:52:23,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.699922144366589) internal successors, (24275), 8991 states have internal predecessors, (24275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:23,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24275 transitions. [2022-03-15 13:52:23,328 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24275 transitions. Word has length 109 [2022-03-15 13:52:23,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:23,328 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24275 transitions. [2022-03-15 13:52:23,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:23,328 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24275 transitions. [2022-03-15 13:52:23,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:23,340 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:23,340 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:23,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2022-03-15 13:52:23,340 INFO L402 AbstractCegarLoop]: === Iteration 274 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:23,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:23,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1399729286, now seen corresponding path program 225 times [2022-03-15 13:52:23,340 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:23,340 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310052259] [2022-03-15 13:52:23,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:23,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:23,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:23,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:23,445 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:23,445 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310052259] [2022-03-15 13:52:23,445 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310052259] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:23,446 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:23,446 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:23,446 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614367898] [2022-03-15 13:52:23,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:23,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:23,446 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:23,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:23,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:23,446 INFO L87 Difference]: Start difference. First operand 8992 states and 24275 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:23,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:23,940 INFO L93 Difference]: Finished difference Result 11510 states and 30998 transitions. [2022-03-15 13:52:23,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:52:23,940 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:23,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:23,958 INFO L225 Difference]: With dead ends: 11510 [2022-03-15 13:52:23,958 INFO L226 Difference]: Without dead ends: 11025 [2022-03-15 13:52:23,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=381, Invalid=1179, Unknown=0, NotChecked=0, Total=1560 [2022-03-15 13:52:23,958 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 300 mSDsluCounter, 3132 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 3388 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:23,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 3388 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:23,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11025 states. [2022-03-15 13:52:24,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11025 to 8996. [2022-03-15 13:52:24,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.6994997220678156) internal successors, (24282), 8995 states have internal predecessors, (24282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:24,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24282 transitions. [2022-03-15 13:52:24,105 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24282 transitions. Word has length 109 [2022-03-15 13:52:24,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:24,105 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24282 transitions. [2022-03-15 13:52:24,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:24,105 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24282 transitions. [2022-03-15 13:52:24,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:24,117 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:24,117 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:24,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2022-03-15 13:52:24,117 INFO L402 AbstractCegarLoop]: === Iteration 275 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:24,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:24,118 INFO L85 PathProgramCache]: Analyzing trace with hash 2081349940, now seen corresponding path program 226 times [2022-03-15 13:52:24,118 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:24,118 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164210742] [2022-03-15 13:52:24,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:24,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:24,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:24,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:24,222 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:24,222 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164210742] [2022-03-15 13:52:24,222 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164210742] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:24,222 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:24,222 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:24,222 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494971948] [2022-03-15 13:52:24,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:24,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:24,223 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:24,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:24,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:24,223 INFO L87 Difference]: Start difference. First operand 8996 states and 24282 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:24,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:24,662 INFO L93 Difference]: Finished difference Result 11460 states and 30865 transitions. [2022-03-15 13:52:24,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:52:24,662 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:24,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:24,679 INFO L225 Difference]: With dead ends: 11460 [2022-03-15 13:52:24,679 INFO L226 Difference]: Without dead ends: 10962 [2022-03-15 13:52:24,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:52:24,679 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 280 mSDsluCounter, 3130 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 3395 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:24,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 3395 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:24,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10962 states. [2022-03-15 13:52:24,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10962 to 8980. [2022-03-15 13:52:24,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.7007461855440473) internal successors, (24250), 8979 states have internal predecessors, (24250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:24,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24250 transitions. [2022-03-15 13:52:24,867 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24250 transitions. Word has length 109 [2022-03-15 13:52:24,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:24,868 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24250 transitions. [2022-03-15 13:52:24,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:24,868 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24250 transitions. [2022-03-15 13:52:24,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:24,879 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:24,879 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:24,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2022-03-15 13:52:24,879 INFO L402 AbstractCegarLoop]: === Iteration 276 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:24,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:24,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1895765318, now seen corresponding path program 227 times [2022-03-15 13:52:24,880 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:24,880 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435477883] [2022-03-15 13:52:24,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:24,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:24,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:24,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:24,990 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:24,990 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435477883] [2022-03-15 13:52:24,990 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435477883] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:24,990 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:24,990 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:24,990 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120288183] [2022-03-15 13:52:24,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:24,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:24,990 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:24,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:24,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:24,990 INFO L87 Difference]: Start difference. First operand 8980 states and 24250 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:25,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:25,424 INFO L93 Difference]: Finished difference Result 11450 states and 30841 transitions. [2022-03-15 13:52:25,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-15 13:52:25,425 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:25,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:25,442 INFO L225 Difference]: With dead ends: 11450 [2022-03-15 13:52:25,442 INFO L226 Difference]: Without dead ends: 10965 [2022-03-15 13:52:25,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=327, Invalid=933, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:52:25,443 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 276 mSDsluCounter, 2752 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 3009 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:25,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [276 Valid, 3009 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:25,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10965 states. [2022-03-15 13:52:25,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10965 to 8996. [2022-03-15 13:52:25,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.700389105058366) internal successors, (24290), 8995 states have internal predecessors, (24290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:25,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24290 transitions. [2022-03-15 13:52:25,585 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24290 transitions. Word has length 109 [2022-03-15 13:52:25,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:25,585 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24290 transitions. [2022-03-15 13:52:25,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:25,585 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24290 transitions. [2022-03-15 13:52:25,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:25,596 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:25,597 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:25,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2022-03-15 13:52:25,597 INFO L402 AbstractCegarLoop]: === Iteration 277 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:25,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:25,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1717581324, now seen corresponding path program 228 times [2022-03-15 13:52:25,597 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:25,597 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669795859] [2022-03-15 13:52:25,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:25,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:25,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:25,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:25,702 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:25,702 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669795859] [2022-03-15 13:52:25,702 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669795859] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:25,702 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:25,702 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:25,702 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693680018] [2022-03-15 13:52:25,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:25,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:25,703 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:25,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:25,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:25,703 INFO L87 Difference]: Start difference. First operand 8996 states and 24290 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:26,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:26,143 INFO L93 Difference]: Finished difference Result 11424 states and 30774 transitions. [2022-03-15 13:52:26,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:52:26,143 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:26,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:26,160 INFO L225 Difference]: With dead ends: 11424 [2022-03-15 13:52:26,160 INFO L226 Difference]: Without dead ends: 10938 [2022-03-15 13:52:26,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=1156, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:52:26,161 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 289 mSDsluCounter, 3298 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 3551 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:26,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 3551 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:26,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10938 states. [2022-03-15 13:52:26,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10938 to 8992. [2022-03-15 13:52:26,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.700367033700367) internal successors, (24279), 8991 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:26,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-03-15 13:52:26,297 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-03-15 13:52:26,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:26,297 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-03-15 13:52:26,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:26,297 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-03-15 13:52:26,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:26,308 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:26,308 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:26,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2022-03-15 13:52:26,308 INFO L402 AbstractCegarLoop]: === Iteration 278 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:26,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:26,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1016893768, now seen corresponding path program 229 times [2022-03-15 13:52:26,309 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:26,309 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083999546] [2022-03-15 13:52:26,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:26,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:26,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:26,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:26,422 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:26,422 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083999546] [2022-03-15 13:52:26,422 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083999546] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:26,422 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:26,422 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:26,422 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286726303] [2022-03-15 13:52:26,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:26,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:26,422 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:26,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:26,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:26,423 INFO L87 Difference]: Start difference. First operand 8992 states and 24279 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:26,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:26,971 INFO L93 Difference]: Finished difference Result 11460 states and 30869 transitions. [2022-03-15 13:52:26,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:52:26,972 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:26,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:26,989 INFO L225 Difference]: With dead ends: 11460 [2022-03-15 13:52:26,989 INFO L226 Difference]: Without dead ends: 10934 [2022-03-15 13:52:26,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=461, Invalid=1609, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:52:26,990 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 359 mSDsluCounter, 2606 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 2876 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:26,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [359 Valid, 2876 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:27,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10934 states. [2022-03-15 13:52:27,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10934 to 8988. [2022-03-15 13:52:27,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:27,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-03-15 13:52:27,137 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-03-15 13:52:27,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:27,137 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-03-15 13:52:27,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:27,138 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-03-15 13:52:27,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:27,149 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:27,149 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:27,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2022-03-15 13:52:27,149 INFO L402 AbstractCegarLoop]: === Iteration 279 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:27,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:27,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1133997064, now seen corresponding path program 230 times [2022-03-15 13:52:27,149 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:27,149 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438024036] [2022-03-15 13:52:27,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:27,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:27,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:27,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:27,257 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:27,258 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438024036] [2022-03-15 13:52:27,258 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438024036] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:27,258 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:27,258 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:27,258 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69617388] [2022-03-15 13:52:27,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:27,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:27,258 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:27,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:27,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:27,259 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:27,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:27,883 INFO L93 Difference]: Finished difference Result 11496 states and 30964 transitions. [2022-03-15 13:52:27,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-15 13:52:27,883 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:27,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:27,900 INFO L225 Difference]: With dead ends: 11496 [2022-03-15 13:52:27,901 INFO L226 Difference]: Without dead ends: 10930 [2022-03-15 13:52:27,901 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 756 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=652, Invalid=2318, Unknown=0, NotChecked=0, Total=2970 [2022-03-15 13:52:27,901 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 413 mSDsluCounter, 3227 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 3496 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:27,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 3496 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:27,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10930 states. [2022-03-15 13:52:28,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10930 to 8984. [2022-03-15 13:52:28,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.70032283201603) internal successors, (24257), 8983 states have internal predecessors, (24257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:28,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24257 transitions. [2022-03-15 13:52:28,056 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24257 transitions. Word has length 109 [2022-03-15 13:52:28,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:28,057 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24257 transitions. [2022-03-15 13:52:28,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:28,057 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24257 transitions. [2022-03-15 13:52:28,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:28,069 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:28,069 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:28,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2022-03-15 13:52:28,070 INFO L402 AbstractCegarLoop]: === Iteration 280 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:28,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:28,070 INFO L85 PathProgramCache]: Analyzing trace with hash 2098188412, now seen corresponding path program 231 times [2022-03-15 13:52:28,070 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:28,070 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752730589] [2022-03-15 13:52:28,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:28,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:28,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:28,181 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:28,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752730589] [2022-03-15 13:52:28,181 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752730589] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:28,181 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:28,181 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:28,181 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341497513] [2022-03-15 13:52:28,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:28,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:28,182 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:28,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:28,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:28,182 INFO L87 Difference]: Start difference. First operand 8984 states and 24257 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:28,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:28,963 INFO L93 Difference]: Finished difference Result 11424 states and 30762 transitions. [2022-03-15 13:52:28,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-15 13:52:28,964 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:28,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:28,980 INFO L225 Difference]: With dead ends: 11424 [2022-03-15 13:52:28,980 INFO L226 Difference]: Without dead ends: 10810 [2022-03-15 13:52:28,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=844, Invalid=2696, Unknown=0, NotChecked=0, Total=3540 [2022-03-15 13:52:28,981 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 443 mSDsluCounter, 2655 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 2936 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:28,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [443 Valid, 2936 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:28,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10810 states. [2022-03-15 13:52:29,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10810 to 8972. [2022-03-15 13:52:29,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8972 states, 8971 states have (on average 2.701148144019619) internal successors, (24232), 8971 states have internal predecessors, (24232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:29,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8972 states to 8972 states and 24232 transitions. [2022-03-15 13:52:29,120 INFO L78 Accepts]: Start accepts. Automaton has 8972 states and 24232 transitions. Word has length 109 [2022-03-15 13:52:29,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:29,120 INFO L470 AbstractCegarLoop]: Abstraction has 8972 states and 24232 transitions. [2022-03-15 13:52:29,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:29,120 INFO L276 IsEmpty]: Start isEmpty. Operand 8972 states and 24232 transitions. [2022-03-15 13:52:29,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:29,131 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:29,131 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:29,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2022-03-15 13:52:29,131 INFO L402 AbstractCegarLoop]: === Iteration 281 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:29,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:29,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1433525632, now seen corresponding path program 232 times [2022-03-15 13:52:29,132 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:29,132 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340965004] [2022-03-15 13:52:29,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:29,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:29,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:29,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:29,252 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:29,252 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340965004] [2022-03-15 13:52:29,252 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340965004] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:29,252 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:29,252 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:29,252 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891918643] [2022-03-15 13:52:29,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:29,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:29,252 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:29,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:29,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:29,253 INFO L87 Difference]: Start difference. First operand 8972 states and 24232 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:29,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:29,732 INFO L93 Difference]: Finished difference Result 11378 states and 30647 transitions. [2022-03-15 13:52:29,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:52:29,732 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:29,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:29,750 INFO L225 Difference]: With dead ends: 11378 [2022-03-15 13:52:29,750 INFO L226 Difference]: Without dead ends: 10893 [2022-03-15 13:52:29,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=348, Invalid=984, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:52:29,750 INFO L933 BasicCegarLoop]: 339 mSDtfsCounter, 360 mSDsluCounter, 3302 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 3581 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:29,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [360 Valid, 3581 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:29,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10893 states. [2022-03-15 13:52:29,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10893 to 9000. [2022-03-15 13:52:29,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9000 states, 8999 states have (on average 2.7008556506278474) internal successors, (24305), 8999 states have internal predecessors, (24305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:29,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9000 states to 9000 states and 24305 transitions. [2022-03-15 13:52:29,902 INFO L78 Accepts]: Start accepts. Automaton has 9000 states and 24305 transitions. Word has length 109 [2022-03-15 13:52:29,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:29,902 INFO L470 AbstractCegarLoop]: Abstraction has 9000 states and 24305 transitions. [2022-03-15 13:52:29,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:29,902 INFO L276 IsEmpty]: Start isEmpty. Operand 9000 states and 24305 transitions. [2022-03-15 13:52:29,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:29,915 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:29,915 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:29,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2022-03-15 13:52:29,915 INFO L402 AbstractCegarLoop]: === Iteration 282 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:29,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:29,915 INFO L85 PathProgramCache]: Analyzing trace with hash 2115146286, now seen corresponding path program 233 times [2022-03-15 13:52:29,915 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:29,915 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267950992] [2022-03-15 13:52:29,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:29,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:29,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:30,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:30,018 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:30,018 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267950992] [2022-03-15 13:52:30,018 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267950992] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:30,018 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:30,018 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:30,019 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091808662] [2022-03-15 13:52:30,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:30,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:30,019 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:30,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:30,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:30,019 INFO L87 Difference]: Start difference. First operand 9000 states and 24305 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:30,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:30,473 INFO L93 Difference]: Finished difference Result 11344 states and 30558 transitions. [2022-03-15 13:52:30,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:52:30,473 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:30,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:30,528 INFO L225 Difference]: With dead ends: 11344 [2022-03-15 13:52:30,528 INFO L226 Difference]: Without dead ends: 10858 [2022-03-15 13:52:30,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=327, Invalid=1155, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:52:30,529 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 357 mSDsluCounter, 3557 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 3844 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:30,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [357 Valid, 3844 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:30,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10858 states. [2022-03-15 13:52:30,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10858 to 8996. [2022-03-15 13:52:30,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.700833796553641) internal successors, (24294), 8995 states have internal predecessors, (24294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:30,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24294 transitions. [2022-03-15 13:52:30,659 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24294 transitions. Word has length 109 [2022-03-15 13:52:30,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:30,659 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24294 transitions. [2022-03-15 13:52:30,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:30,659 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24294 transitions. [2022-03-15 13:52:30,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:30,671 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:30,672 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:30,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2022-03-15 13:52:30,672 INFO L402 AbstractCegarLoop]: === Iteration 283 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:30,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:30,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1479133454, now seen corresponding path program 234 times [2022-03-15 13:52:30,672 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:30,672 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101524365] [2022-03-15 13:52:30,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:30,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:30,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:30,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:30,778 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:30,778 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101524365] [2022-03-15 13:52:30,778 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101524365] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:30,778 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:30,778 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:30,778 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236783041] [2022-03-15 13:52:30,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:30,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:30,778 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:30,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:30,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:30,779 INFO L87 Difference]: Start difference. First operand 8996 states and 24294 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:31,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:31,315 INFO L93 Difference]: Finished difference Result 11380 states and 30653 transitions. [2022-03-15 13:52:31,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:52:31,315 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:31,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:31,332 INFO L225 Difference]: With dead ends: 11380 [2022-03-15 13:52:31,332 INFO L226 Difference]: Without dead ends: 10854 [2022-03-15 13:52:31,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=462, Invalid=1608, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:52:31,333 INFO L933 BasicCegarLoop]: 350 mSDtfsCounter, 426 mSDsluCounter, 2829 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 3132 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:31,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [426 Valid, 3132 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:31,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10854 states. [2022-03-15 13:52:31,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10854 to 8992. [2022-03-15 13:52:31,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7008119230341454) internal successors, (24283), 8991 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:31,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-03-15 13:52:31,468 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-03-15 13:52:31,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:31,468 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-03-15 13:52:31,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:31,469 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-03-15 13:52:31,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:31,479 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:31,479 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:31,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2022-03-15 13:52:31,480 INFO L402 AbstractCegarLoop]: === Iteration 284 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:31,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:31,480 INFO L85 PathProgramCache]: Analyzing trace with hash 671757378, now seen corresponding path program 235 times [2022-03-15 13:52:31,480 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:31,480 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308286169] [2022-03-15 13:52:31,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:31,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:31,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:31,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:31,589 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:31,589 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308286169] [2022-03-15 13:52:31,589 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308286169] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:31,589 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:31,589 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:31,589 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524882619] [2022-03-15 13:52:31,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:31,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:31,589 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:31,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:31,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:31,589 INFO L87 Difference]: Start difference. First operand 8992 states and 24283 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:32,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:32,187 INFO L93 Difference]: Finished difference Result 11608 states and 31252 transitions. [2022-03-15 13:52:32,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-15 13:52:32,187 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:32,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:32,204 INFO L225 Difference]: With dead ends: 11608 [2022-03-15 13:52:32,204 INFO L226 Difference]: Without dead ends: 11042 [2022-03-15 13:52:32,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 755 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=631, Invalid=2231, Unknown=0, NotChecked=0, Total=2862 [2022-03-15 13:52:32,205 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 520 mSDsluCounter, 3174 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 3478 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:32,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [520 Valid, 3478 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:32,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11042 states. [2022-03-15 13:52:32,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11042 to 8988. [2022-03-15 13:52:32,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:32,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-03-15 13:52:32,343 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-03-15 13:52:32,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:32,343 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-03-15 13:52:32,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:32,343 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-03-15 13:52:32,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:32,354 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:32,354 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:32,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2022-03-15 13:52:32,354 INFO L402 AbstractCegarLoop]: === Iteration 285 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:32,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:32,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1830797434, now seen corresponding path program 236 times [2022-03-15 13:52:32,355 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:32,355 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406202225] [2022-03-15 13:52:32,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:32,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:32,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:32,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:32,452 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:32,452 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406202225] [2022-03-15 13:52:32,452 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406202225] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:32,452 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:32,452 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:32,453 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401699257] [2022-03-15 13:52:32,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:32,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:32,453 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:32,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:32,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:32,453 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:32,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:32,891 INFO L93 Difference]: Finished difference Result 11354 states and 30577 transitions. [2022-03-15 13:52:32,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:52:32,891 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:32,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:32,908 INFO L225 Difference]: With dead ends: 11354 [2022-03-15 13:52:32,908 INFO L226 Difference]: Without dead ends: 10869 [2022-03-15 13:52:32,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=369, Invalid=1113, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:52:32,908 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 362 mSDsluCounter, 3311 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 3592 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:32,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 3592 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:32,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10869 states. [2022-03-15 13:52:33,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10869 to 9000. [2022-03-15 13:52:33,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9000 states, 8999 states have (on average 2.7004111567951994) internal successors, (24301), 8999 states have internal predecessors, (24301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:33,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9000 states to 9000 states and 24301 transitions. [2022-03-15 13:52:33,037 INFO L78 Accepts]: Start accepts. Automaton has 9000 states and 24301 transitions. Word has length 109 [2022-03-15 13:52:33,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:33,037 INFO L470 AbstractCegarLoop]: Abstraction has 9000 states and 24301 transitions. [2022-03-15 13:52:33,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:33,037 INFO L276 IsEmpty]: Start isEmpty. Operand 9000 states and 24301 transitions. [2022-03-15 13:52:33,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:33,048 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:33,048 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:33,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2022-03-15 13:52:33,048 INFO L402 AbstractCegarLoop]: === Iteration 286 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:33,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:33,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1149176780, now seen corresponding path program 237 times [2022-03-15 13:52:33,048 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:33,048 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563943293] [2022-03-15 13:52:33,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:33,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:33,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:33,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:33,150 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:33,150 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563943293] [2022-03-15 13:52:33,150 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563943293] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:33,150 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:33,150 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:33,150 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788886526] [2022-03-15 13:52:33,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:33,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:33,150 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:33,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:33,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:33,151 INFO L87 Difference]: Start difference. First operand 9000 states and 24301 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:33,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:33,573 INFO L93 Difference]: Finished difference Result 11312 states and 30466 transitions. [2022-03-15 13:52:33,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:52:33,573 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:33,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:33,590 INFO L225 Difference]: With dead ends: 11312 [2022-03-15 13:52:33,590 INFO L226 Difference]: Without dead ends: 10826 [2022-03-15 13:52:33,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=1149, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:52:33,590 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 356 mSDsluCounter, 3072 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 3364 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:33,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [356 Valid, 3364 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:33,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10826 states. [2022-03-15 13:52:33,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10826 to 8996. [2022-03-15 13:52:33,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.700389105058366) internal successors, (24290), 8995 states have internal predecessors, (24290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:33,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24290 transitions. [2022-03-15 13:52:33,736 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24290 transitions. Word has length 109 [2022-03-15 13:52:33,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:33,736 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24290 transitions. [2022-03-15 13:52:33,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:33,736 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24290 transitions. [2022-03-15 13:52:33,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:33,748 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:33,748 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:33,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2022-03-15 13:52:33,748 INFO L402 AbstractCegarLoop]: === Iteration 287 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:33,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:33,748 INFO L85 PathProgramCache]: Analyzing trace with hash -448489224, now seen corresponding path program 238 times [2022-03-15 13:52:33,748 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:33,748 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237490259] [2022-03-15 13:52:33,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:33,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:33,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:33,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:33,861 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:33,861 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237490259] [2022-03-15 13:52:33,861 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237490259] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:33,861 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:33,861 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:33,861 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937561980] [2022-03-15 13:52:33,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:33,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:33,861 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:33,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:33,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:33,862 INFO L87 Difference]: Start difference. First operand 8996 states and 24290 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:34,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:34,406 INFO L93 Difference]: Finished difference Result 11480 states and 30908 transitions. [2022-03-15 13:52:34,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:52:34,406 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:34,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:34,425 INFO L225 Difference]: With dead ends: 11480 [2022-03-15 13:52:34,425 INFO L226 Difference]: Without dead ends: 10954 [2022-03-15 13:52:34,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=450, Invalid=1530, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 13:52:34,426 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 444 mSDsluCounter, 2509 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 2814 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:34,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [444 Valid, 2814 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:34,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10954 states. [2022-03-15 13:52:34,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10954 to 8992. [2022-03-15 13:52:34,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.700367033700367) internal successors, (24279), 8991 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:34,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-03-15 13:52:34,570 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-03-15 13:52:34,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:34,571 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-03-15 13:52:34,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:34,571 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-03-15 13:52:34,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:34,582 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:34,583 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:34,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2022-03-15 13:52:34,583 INFO L402 AbstractCegarLoop]: === Iteration 288 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:34,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:34,583 INFO L85 PathProgramCache]: Analyzing trace with hash 629198804, now seen corresponding path program 239 times [2022-03-15 13:52:34,583 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:34,583 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628744110] [2022-03-15 13:52:34,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:34,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:34,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:34,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:34,682 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:34,682 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628744110] [2022-03-15 13:52:34,682 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628744110] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:34,682 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:34,682 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:34,682 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271907192] [2022-03-15 13:52:34,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:34,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:34,682 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:34,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:34,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:34,683 INFO L87 Difference]: Start difference. First operand 8992 states and 24279 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:35,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:35,196 INFO L93 Difference]: Finished difference Result 11378 states and 30614 transitions. [2022-03-15 13:52:35,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-15 13:52:35,196 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:35,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:35,213 INFO L225 Difference]: With dead ends: 11378 [2022-03-15 13:52:35,213 INFO L226 Difference]: Without dead ends: 10850 [2022-03-15 13:52:35,214 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=500, Invalid=1392, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 13:52:35,214 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 424 mSDsluCounter, 3315 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 3601 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:35,214 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [424 Valid, 3601 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:35,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10850 states. [2022-03-15 13:52:35,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10850 to 8996. [2022-03-15 13:52:35,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.699944413563091) internal successors, (24286), 8995 states have internal predecessors, (24286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:35,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24286 transitions. [2022-03-15 13:52:35,356 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24286 transitions. Word has length 109 [2022-03-15 13:52:35,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:35,356 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24286 transitions. [2022-03-15 13:52:35,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:35,356 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24286 transitions. [2022-03-15 13:52:35,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:35,368 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:35,368 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:35,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2022-03-15 13:52:35,368 INFO L402 AbstractCegarLoop]: === Iteration 289 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:35,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:35,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1878833538, now seen corresponding path program 240 times [2022-03-15 13:52:35,368 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:35,368 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820622810] [2022-03-15 13:52:35,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:35,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:35,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:35,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:35,471 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:35,471 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820622810] [2022-03-15 13:52:35,471 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820622810] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:35,471 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:35,471 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:35,472 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562975446] [2022-03-15 13:52:35,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:35,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:35,472 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:35,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:35,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:35,472 INFO L87 Difference]: Start difference. First operand 8996 states and 24286 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:35,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:35,952 INFO L93 Difference]: Finished difference Result 11294 states and 30404 transitions. [2022-03-15 13:52:35,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:52:35,952 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:35,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:35,968 INFO L225 Difference]: With dead ends: 11294 [2022-03-15 13:52:35,968 INFO L226 Difference]: Without dead ends: 10809 [2022-03-15 13:52:35,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=386, Invalid=1096, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:52:35,969 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 409 mSDsluCounter, 2186 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 2478 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:35,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [409 Valid, 2478 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:35,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10809 states. [2022-03-15 13:52:36,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10809 to 9000. [2022-03-15 13:52:36,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9000 states, 8999 states have (on average 2.6995221691299034) internal successors, (24293), 8999 states have internal predecessors, (24293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:36,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9000 states to 9000 states and 24293 transitions. [2022-03-15 13:52:36,107 INFO L78 Accepts]: Start accepts. Automaton has 9000 states and 24293 transitions. Word has length 109 [2022-03-15 13:52:36,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:36,107 INFO L470 AbstractCegarLoop]: Abstraction has 9000 states and 24293 transitions. [2022-03-15 13:52:36,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:36,107 INFO L276 IsEmpty]: Start isEmpty. Operand 9000 states and 24293 transitions. [2022-03-15 13:52:36,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:36,118 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:36,118 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:36,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2022-03-15 13:52:36,118 INFO L402 AbstractCegarLoop]: === Iteration 290 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:36,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:36,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1197212884, now seen corresponding path program 241 times [2022-03-15 13:52:36,119 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:36,119 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162218292] [2022-03-15 13:52:36,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:36,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:36,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:36,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:36,219 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:36,219 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162218292] [2022-03-15 13:52:36,219 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162218292] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:36,219 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:36,219 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:36,219 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109576267] [2022-03-15 13:52:36,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:36,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:36,219 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:36,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:36,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:36,220 INFO L87 Difference]: Start difference. First operand 9000 states and 24293 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:36,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:36,591 INFO L93 Difference]: Finished difference Result 11244 states and 30271 transitions. [2022-03-15 13:52:36,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:52:36,591 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:36,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:36,608 INFO L225 Difference]: With dead ends: 11244 [2022-03-15 13:52:36,608 INFO L226 Difference]: Without dead ends: 10746 [2022-03-15 13:52:36,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=315, Invalid=1091, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:52:36,608 INFO L933 BasicCegarLoop]: 338 mSDtfsCounter, 362 mSDsluCounter, 2572 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 2864 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:36,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 2864 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:36,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10746 states. [2022-03-15 13:52:36,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10746 to 8984. [2022-03-15 13:52:36,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7007681175553824) internal successors, (24261), 8983 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:36,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-03-15 13:52:36,762 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-03-15 13:52:36,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:36,762 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-03-15 13:52:36,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:36,763 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-03-15 13:52:36,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:36,774 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:36,774 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:36,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2022-03-15 13:52:36,775 INFO L402 AbstractCegarLoop]: === Iteration 291 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:36,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:36,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1382797506, now seen corresponding path program 242 times [2022-03-15 13:52:36,775 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:36,775 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830363544] [2022-03-15 13:52:36,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:36,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:36,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:36,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:36,880 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:36,880 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830363544] [2022-03-15 13:52:36,881 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830363544] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:36,881 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:36,881 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:36,881 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242401774] [2022-03-15 13:52:36,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:36,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:36,881 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:36,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:36,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:36,881 INFO L87 Difference]: Start difference. First operand 8984 states and 24261 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:37,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:37,309 INFO L93 Difference]: Finished difference Result 11306 states and 30445 transitions. [2022-03-15 13:52:37,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-15 13:52:37,309 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:37,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:37,324 INFO L225 Difference]: With dead ends: 11306 [2022-03-15 13:52:37,324 INFO L226 Difference]: Without dead ends: 10821 [2022-03-15 13:52:37,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=332, Invalid=928, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:52:37,324 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 402 mSDsluCounter, 3432 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 3701 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:37,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [402 Valid, 3701 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:37,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10821 states. [2022-03-15 13:52:37,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10821 to 9000. [2022-03-15 13:52:37,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9000 states, 8999 states have (on average 2.7004111567951994) internal successors, (24301), 8999 states have internal predecessors, (24301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:37,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9000 states to 9000 states and 24301 transitions. [2022-03-15 13:52:37,445 INFO L78 Accepts]: Start accepts. Automaton has 9000 states and 24301 transitions. Word has length 109 [2022-03-15 13:52:37,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:37,445 INFO L470 AbstractCegarLoop]: Abstraction has 9000 states and 24301 transitions. [2022-03-15 13:52:37,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:37,446 INFO L276 IsEmpty]: Start isEmpty. Operand 9000 states and 24301 transitions. [2022-03-15 13:52:37,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:37,455 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:37,455 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:37,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290 [2022-03-15 13:52:37,456 INFO L402 AbstractCegarLoop]: === Iteration 292 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:37,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:37,456 INFO L85 PathProgramCache]: Analyzing trace with hash -701176852, now seen corresponding path program 243 times [2022-03-15 13:52:37,456 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:37,456 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804735067] [2022-03-15 13:52:37,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:37,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:37,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:37,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:37,558 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:37,558 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804735067] [2022-03-15 13:52:37,558 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804735067] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:37,558 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:37,558 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:37,558 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528158201] [2022-03-15 13:52:37,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:37,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:37,558 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:37,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:37,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:37,559 INFO L87 Difference]: Start difference. First operand 9000 states and 24301 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:37,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:37,977 INFO L93 Difference]: Finished difference Result 11280 states and 30378 transitions. [2022-03-15 13:52:37,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:52:37,978 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:37,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:37,993 INFO L225 Difference]: With dead ends: 11280 [2022-03-15 13:52:37,993 INFO L226 Difference]: Without dead ends: 10794 [2022-03-15 13:52:37,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=321, Invalid=1161, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:52:37,993 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 384 mSDsluCounter, 3275 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 3555 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:37,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [384 Valid, 3555 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:38,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10794 states. [2022-03-15 13:52:38,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10794 to 8996. [2022-03-15 13:52:38,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.700389105058366) internal successors, (24290), 8995 states have internal predecessors, (24290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:38,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24290 transitions. [2022-03-15 13:52:38,112 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24290 transitions. Word has length 109 [2022-03-15 13:52:38,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:38,112 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24290 transitions. [2022-03-15 13:52:38,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:38,112 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24290 transitions. [2022-03-15 13:52:38,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:38,123 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:38,123 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:38,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291 [2022-03-15 13:52:38,123 INFO L402 AbstractCegarLoop]: === Iteration 293 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:38,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:38,123 INFO L85 PathProgramCache]: Analyzing trace with hash -489296, now seen corresponding path program 244 times [2022-03-15 13:52:38,123 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:38,123 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775214439] [2022-03-15 13:52:38,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:38,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:38,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:38,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:38,225 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:38,225 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775214439] [2022-03-15 13:52:38,225 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775214439] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:38,225 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:38,226 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:38,226 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852079386] [2022-03-15 13:52:38,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:38,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:38,226 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:38,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:38,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:38,226 INFO L87 Difference]: Start difference. First operand 8996 states and 24290 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:38,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:38,730 INFO L93 Difference]: Finished difference Result 11316 states and 30473 transitions. [2022-03-15 13:52:38,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:52:38,730 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:38,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:38,745 INFO L225 Difference]: With dead ends: 11316 [2022-03-15 13:52:38,745 INFO L226 Difference]: Without dead ends: 10790 [2022-03-15 13:52:38,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 480 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=451, Invalid=1619, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:52:38,745 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 442 mSDsluCounter, 2747 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 3043 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:38,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [442 Valid, 3043 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:38,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10790 states. [2022-03-15 13:52:38,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10790 to 8992. [2022-03-15 13:52:38,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.700367033700367) internal successors, (24279), 8991 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:38,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-03-15 13:52:38,881 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-03-15 13:52:38,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:38,881 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-03-15 13:52:38,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:38,881 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-03-15 13:52:38,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:38,893 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:38,893 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:38,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2022-03-15 13:52:38,893 INFO L402 AbstractCegarLoop]: === Iteration 294 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:38,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:38,893 INFO L85 PathProgramCache]: Analyzing trace with hash -2144565760, now seen corresponding path program 245 times [2022-03-15 13:52:38,893 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:38,893 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823469656] [2022-03-15 13:52:38,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:38,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:38,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:38,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:38,996 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:38,996 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823469656] [2022-03-15 13:52:38,996 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823469656] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:38,996 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:38,996 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:38,996 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483531995] [2022-03-15 13:52:38,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:38,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:38,996 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:38,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:38,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:38,997 INFO L87 Difference]: Start difference. First operand 8992 states and 24279 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:39,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:39,620 INFO L93 Difference]: Finished difference Result 11352 states and 30568 transitions. [2022-03-15 13:52:39,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-15 13:52:39,621 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:39,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:39,637 INFO L225 Difference]: With dead ends: 11352 [2022-03-15 13:52:39,637 INFO L226 Difference]: Without dead ends: 10786 [2022-03-15 13:52:39,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 769 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=637, Invalid=2333, Unknown=0, NotChecked=0, Total=2970 [2022-03-15 13:52:39,637 INFO L933 BasicCegarLoop]: 350 mSDtfsCounter, 484 mSDsluCounter, 3685 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 3979 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:39,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [484 Valid, 3979 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:39,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10786 states. [2022-03-15 13:52:39,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10786 to 8988. [2022-03-15 13:52:39,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:39,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-03-15 13:52:39,768 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-03-15 13:52:39,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:39,768 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-03-15 13:52:39,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:39,768 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-03-15 13:52:39,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:39,778 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:39,778 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:39,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2022-03-15 13:52:39,778 INFO L402 AbstractCegarLoop]: === Iteration 295 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:39,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:39,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1180374412, now seen corresponding path program 246 times [2022-03-15 13:52:39,779 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:39,779 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248440429] [2022-03-15 13:52:39,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:39,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:39,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:39,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:39,881 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:39,881 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248440429] [2022-03-15 13:52:39,881 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248440429] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:39,881 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:39,881 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:39,881 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023082933] [2022-03-15 13:52:39,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:39,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:39,881 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:39,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:39,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:39,882 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:40,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:40,590 INFO L93 Difference]: Finished difference Result 11352 states and 30564 transitions. [2022-03-15 13:52:40,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-15 13:52:40,590 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:40,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:40,606 INFO L225 Difference]: With dead ends: 11352 [2022-03-15 13:52:40,606 INFO L226 Difference]: Without dead ends: 10742 [2022-03-15 13:52:40,607 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1072 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=849, Invalid=2933, Unknown=0, NotChecked=0, Total=3782 [2022-03-15 13:52:40,607 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 530 mSDsluCounter, 3713 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 4012 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:40,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [530 Valid, 4012 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:40,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10742 states. [2022-03-15 13:52:40,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10742 to 8980. [2022-03-15 13:52:40,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.7007461855440473) internal successors, (24250), 8979 states have internal predecessors, (24250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:40,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24250 transitions. [2022-03-15 13:52:40,743 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24250 transitions. Word has length 109 [2022-03-15 13:52:40,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:40,743 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24250 transitions. [2022-03-15 13:52:40,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:40,743 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24250 transitions. [2022-03-15 13:52:40,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:40,754 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:40,754 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:40,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2022-03-15 13:52:40,754 INFO L402 AbstractCegarLoop]: === Iteration 296 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:40,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:40,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1589513272, now seen corresponding path program 247 times [2022-03-15 13:52:40,755 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:40,755 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844655573] [2022-03-15 13:52:40,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:40,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:40,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:40,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:40,856 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:40,856 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844655573] [2022-03-15 13:52:40,856 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844655573] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:40,856 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:40,856 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:40,856 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307224625] [2022-03-15 13:52:40,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:40,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:40,856 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:40,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:40,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:40,856 INFO L87 Difference]: Start difference. First operand 8980 states and 24250 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:41,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:41,238 INFO L93 Difference]: Finished difference Result 11166 states and 30060 transitions. [2022-03-15 13:52:41,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-15 13:52:41,238 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:41,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:41,253 INFO L225 Difference]: With dead ends: 11166 [2022-03-15 13:52:41,254 INFO L226 Difference]: Without dead ends: 10681 [2022-03-15 13:52:41,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=323, Invalid=867, Unknown=0, NotChecked=0, Total=1190 [2022-03-15 13:52:41,254 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 490 mSDsluCounter, 1645 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 1960 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:41,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [490 Valid, 1960 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:41,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10681 states. [2022-03-15 13:52:41,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10681 to 9004. [2022-03-15 13:52:41,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9004 states, 9003 states have (on average 2.700433188937021) internal successors, (24312), 9003 states have internal predecessors, (24312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:41,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9004 states to 9004 states and 24312 transitions. [2022-03-15 13:52:41,378 INFO L78 Accepts]: Start accepts. Automaton has 9004 states and 24312 transitions. Word has length 109 [2022-03-15 13:52:41,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:41,378 INFO L470 AbstractCegarLoop]: Abstraction has 9004 states and 24312 transitions. [2022-03-15 13:52:41,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:41,378 INFO L276 IsEmpty]: Start isEmpty. Operand 9004 states and 24312 transitions. [2022-03-15 13:52:41,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:41,389 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:41,389 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:41,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2022-03-15 13:52:41,389 INFO L402 AbstractCegarLoop]: === Iteration 297 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:41,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:41,389 INFO L85 PathProgramCache]: Analyzing trace with hash -907892618, now seen corresponding path program 248 times [2022-03-15 13:52:41,389 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:41,389 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61028383] [2022-03-15 13:52:41,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:41,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:41,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:41,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:41,505 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:41,505 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61028383] [2022-03-15 13:52:41,505 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61028383] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:41,506 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:41,506 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:41,506 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061838905] [2022-03-15 13:52:41,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:41,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:41,506 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:41,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:41,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:41,506 INFO L87 Difference]: Start difference. First operand 9004 states and 24312 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:41,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:41,884 INFO L93 Difference]: Finished difference Result 11140 states and 29993 transitions. [2022-03-15 13:52:41,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:52:41,884 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:41,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:41,900 INFO L225 Difference]: With dead ends: 11140 [2022-03-15 13:52:41,901 INFO L226 Difference]: Without dead ends: 10654 [2022-03-15 13:52:41,901 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=319, Invalid=1163, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:52:41,901 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 534 mSDsluCounter, 2818 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 3123 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:41,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [534 Valid, 3123 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:41,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10654 states. [2022-03-15 13:52:42,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10654 to 9000. [2022-03-15 13:52:42,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9000 states, 8999 states have (on average 2.7004111567951994) internal successors, (24301), 8999 states have internal predecessors, (24301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:42,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9000 states to 9000 states and 24301 transitions. [2022-03-15 13:52:42,045 INFO L78 Accepts]: Start accepts. Automaton has 9000 states and 24301 transitions. Word has length 109 [2022-03-15 13:52:42,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:42,046 INFO L470 AbstractCegarLoop]: Abstraction has 9000 states and 24301 transitions. [2022-03-15 13:52:42,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:42,046 INFO L276 IsEmpty]: Start isEmpty. Operand 9000 states and 24301 transitions. [2022-03-15 13:52:42,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:42,057 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:42,057 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:42,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296 [2022-03-15 13:52:42,057 INFO L402 AbstractCegarLoop]: === Iteration 298 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:42,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:42,057 INFO L85 PathProgramCache]: Analyzing trace with hash -207205062, now seen corresponding path program 249 times [2022-03-15 13:52:42,057 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:42,057 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658180177] [2022-03-15 13:52:42,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:42,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:42,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:42,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:42,158 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:42,158 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658180177] [2022-03-15 13:52:42,158 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658180177] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:42,158 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:42,158 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:42,158 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630478288] [2022-03-15 13:52:42,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:42,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:42,159 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:42,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:42,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:42,159 INFO L87 Difference]: Start difference. First operand 9000 states and 24301 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:42,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:42,632 INFO L93 Difference]: Finished difference Result 11176 states and 30088 transitions. [2022-03-15 13:52:42,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:52:42,632 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:42,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:42,649 INFO L225 Difference]: With dead ends: 11176 [2022-03-15 13:52:42,649 INFO L226 Difference]: Without dead ends: 10650 [2022-03-15 13:52:42,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=443, Invalid=1627, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:52:42,649 INFO L933 BasicCegarLoop]: 354 mSDtfsCounter, 605 mSDsluCounter, 2523 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 2839 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:42,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [605 Valid, 2839 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:42,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10650 states. [2022-03-15 13:52:42,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10650 to 8996. [2022-03-15 13:52:42,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.700389105058366) internal successors, (24290), 8995 states have internal predecessors, (24290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:42,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24290 transitions. [2022-03-15 13:52:42,809 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24290 transitions. Word has length 109 [2022-03-15 13:52:42,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:42,809 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24290 transitions. [2022-03-15 13:52:42,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:42,809 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24290 transitions. [2022-03-15 13:52:42,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:42,822 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:42,822 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:42,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2022-03-15 13:52:42,822 INFO L402 AbstractCegarLoop]: === Iteration 299 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:42,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:42,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1943685770, now seen corresponding path program 250 times [2022-03-15 13:52:42,822 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:42,822 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236171951] [2022-03-15 13:52:42,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:42,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:42,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:42,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:42,930 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:42,930 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236171951] [2022-03-15 13:52:42,930 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236171951] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:42,931 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:42,931 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:42,931 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399748019] [2022-03-15 13:52:42,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:42,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:42,931 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:42,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:42,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:42,931 INFO L87 Difference]: Start difference. First operand 8996 states and 24290 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:43,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:43,537 INFO L93 Difference]: Finished difference Result 11212 states and 30183 transitions. [2022-03-15 13:52:43,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-15 13:52:43,538 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:43,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:43,555 INFO L225 Difference]: With dead ends: 11212 [2022-03-15 13:52:43,555 INFO L226 Difference]: Without dead ends: 10646 [2022-03-15 13:52:43,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 818 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=623, Invalid=2347, Unknown=0, NotChecked=0, Total=2970 [2022-03-15 13:52:43,556 INFO L933 BasicCegarLoop]: 362 mSDtfsCounter, 660 mSDsluCounter, 3510 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 3825 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:43,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [660 Valid, 3825 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:43,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10646 states. [2022-03-15 13:52:43,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10646 to 8992. [2022-03-15 13:52:43,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.700367033700367) internal successors, (24279), 8991 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:43,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-03-15 13:52:43,731 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-03-15 13:52:43,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:43,731 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-03-15 13:52:43,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:43,731 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-03-15 13:52:43,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:43,746 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:43,746 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:43,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2022-03-15 13:52:43,746 INFO L402 AbstractCegarLoop]: === Iteration 300 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:43,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:43,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1387090178, now seen corresponding path program 251 times [2022-03-15 13:52:43,746 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:43,747 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401731069] [2022-03-15 13:52:43,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:43,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:43,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:43,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:43,868 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:43,868 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401731069] [2022-03-15 13:52:43,868 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401731069] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:43,868 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:43,868 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:43,868 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498180410] [2022-03-15 13:52:43,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:43,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:43,869 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:43,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:43,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:43,869 INFO L87 Difference]: Start difference. First operand 8992 states and 24279 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:44,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:44,668 INFO L93 Difference]: Finished difference Result 11248 states and 30278 transitions. [2022-03-15 13:52:44,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-15 13:52:44,668 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:44,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:44,685 INFO L225 Difference]: With dead ends: 11248 [2022-03-15 13:52:44,685 INFO L226 Difference]: Without dead ends: 10642 [2022-03-15 13:52:44,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1132 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=847, Invalid=2935, Unknown=0, NotChecked=0, Total=3782 [2022-03-15 13:52:44,686 INFO L933 BasicCegarLoop]: 370 mSDtfsCounter, 742 mSDsluCounter, 2883 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 3211 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:44,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [742 Valid, 3211 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:44,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10642 states. [2022-03-15 13:52:44,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10642 to 8988. [2022-03-15 13:52:44,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:44,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-03-15 13:52:44,838 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-03-15 13:52:44,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:44,838 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-03-15 13:52:44,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:44,838 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-03-15 13:52:44,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:44,850 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:44,850 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:44,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable299 [2022-03-15 13:52:44,850 INFO L402 AbstractCegarLoop]: === Iteration 301 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:44,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:44,850 INFO L85 PathProgramCache]: Analyzing trace with hash 848592424, now seen corresponding path program 252 times [2022-03-15 13:52:44,850 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:44,850 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511167827] [2022-03-15 13:52:44,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:44,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:44,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:44,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:44,956 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:44,956 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511167827] [2022-03-15 13:52:44,956 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511167827] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:44,956 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:44,956 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:44,956 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397882140] [2022-03-15 13:52:44,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:44,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:44,959 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:44,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:44,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:44,959 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:45,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:45,836 INFO L93 Difference]: Finished difference Result 11861 states and 31739 transitions. [2022-03-15 13:52:45,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-03-15 13:52:45,836 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:45,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:45,853 INFO L225 Difference]: With dead ends: 11861 [2022-03-15 13:52:45,853 INFO L226 Difference]: Without dead ends: 10915 [2022-03-15 13:52:45,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1225 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=995, Invalid=3165, Unknown=0, NotChecked=0, Total=4160 [2022-03-15 13:52:45,854 INFO L933 BasicCegarLoop]: 410 mSDtfsCounter, 954 mSDsluCounter, 3210 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 954 SdHoareTripleChecker+Valid, 3574 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:45,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [954 Valid, 3574 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:45,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10915 states. [2022-03-15 13:52:45,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10915 to 8724. [2022-03-15 13:52:45,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8724 states, 8723 states have (on average 2.702166685773243) internal successors, (23571), 8723 states have internal predecessors, (23571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:45,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8724 states to 8724 states and 23571 transitions. [2022-03-15 13:52:45,993 INFO L78 Accepts]: Start accepts. Automaton has 8724 states and 23571 transitions. Word has length 109 [2022-03-15 13:52:45,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:45,993 INFO L470 AbstractCegarLoop]: Abstraction has 8724 states and 23571 transitions. [2022-03-15 13:52:45,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:45,993 INFO L276 IsEmpty]: Start isEmpty. Operand 8724 states and 23571 transitions. [2022-03-15 13:52:46,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:46,004 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:46,004 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:46,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable300 [2022-03-15 13:52:46,004 INFO L402 AbstractCegarLoop]: === Iteration 302 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:46,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:46,004 INFO L85 PathProgramCache]: Analyzing trace with hash 2023938288, now seen corresponding path program 1 times [2022-03-15 13:52:46,004 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:46,004 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115848697] [2022-03-15 13:52:46,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:46,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:46,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:46,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:46,017 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:46,017 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115848697] [2022-03-15 13:52:46,017 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115848697] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:46,017 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:46,017 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 13:52:46,017 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747572561] [2022-03-15 13:52:46,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:46,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 13:52:46,017 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:46,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 13:52:46,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 13:52:46,017 INFO L87 Difference]: Start difference. First operand 8724 states and 23571 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:46,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:46,048 INFO L93 Difference]: Finished difference Result 7930 states and 20990 transitions. [2022-03-15 13:52:46,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 13:52:46,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:46,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:46,059 INFO L225 Difference]: With dead ends: 7930 [2022-03-15 13:52:46,059 INFO L226 Difference]: Without dead ends: 7930 [2022-03-15 13:52:46,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 13:52:46,059 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 123 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:46,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 203 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:52:46,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7930 states. [2022-03-15 13:52:46,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7930 to 7930. [2022-03-15 13:52:46,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7930 states, 7929 states have (on average 2.6472442931012736) internal successors, (20990), 7929 states have internal predecessors, (20990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:46,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7930 states to 7930 states and 20990 transitions. [2022-03-15 13:52:46,165 INFO L78 Accepts]: Start accepts. Automaton has 7930 states and 20990 transitions. Word has length 109 [2022-03-15 13:52:46,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:46,166 INFO L470 AbstractCegarLoop]: Abstraction has 7930 states and 20990 transitions. [2022-03-15 13:52:46,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:46,166 INFO L276 IsEmpty]: Start isEmpty. Operand 7930 states and 20990 transitions. [2022-03-15 13:52:46,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:46,175 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:46,175 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:46,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable301 [2022-03-15 13:52:46,175 INFO L402 AbstractCegarLoop]: === Iteration 303 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:46,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:46,175 INFO L85 PathProgramCache]: Analyzing trace with hash 118742352, now seen corresponding path program 1 times [2022-03-15 13:52:46,175 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:46,175 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387856442] [2022-03-15 13:52:46,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:46,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:46,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:46,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:46,281 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:46,281 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387856442] [2022-03-15 13:52:46,281 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387856442] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:46,281 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:46,281 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:46,281 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287238025] [2022-03-15 13:52:46,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:46,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:46,281 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:46,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:46,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:46,282 INFO L87 Difference]: Start difference. First operand 7930 states and 20990 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:47,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:47,242 INFO L93 Difference]: Finished difference Result 9314 states and 24487 transitions. [2022-03-15 13:52:47,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-03-15 13:52:47,243 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:47,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:47,254 INFO L225 Difference]: With dead ends: 9314 [2022-03-15 13:52:47,255 INFO L226 Difference]: Without dead ends: 8518 [2022-03-15 13:52:47,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1325 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1028, Invalid=3394, Unknown=0, NotChecked=0, Total=4422 [2022-03-15 13:52:47,255 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 611 mSDsluCounter, 3305 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 3534 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:47,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [611 Valid, 3534 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:52:47,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8518 states. [2022-03-15 13:52:47,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8518 to 7730. [2022-03-15 13:52:47,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7730 states, 7729 states have (on average 2.644585327985509) internal successors, (20440), 7729 states have internal predecessors, (20440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:47,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7730 states to 7730 states and 20440 transitions. [2022-03-15 13:52:47,366 INFO L78 Accepts]: Start accepts. Automaton has 7730 states and 20440 transitions. Word has length 109 [2022-03-15 13:52:47,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:47,366 INFO L470 AbstractCegarLoop]: Abstraction has 7730 states and 20440 transitions. [2022-03-15 13:52:47,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:47,366 INFO L276 IsEmpty]: Start isEmpty. Operand 7730 states and 20440 transitions. [2022-03-15 13:52:47,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:47,375 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:47,375 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:47,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable302 [2022-03-15 13:52:47,375 INFO L402 AbstractCegarLoop]: === Iteration 304 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:47,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:47,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1474585368, now seen corresponding path program 2 times [2022-03-15 13:52:47,375 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:47,375 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337747385] [2022-03-15 13:52:47,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:47,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:47,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:47,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:47,481 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:47,481 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337747385] [2022-03-15 13:52:47,481 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337747385] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:47,481 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:47,481 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:47,481 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94175881] [2022-03-15 13:52:47,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:47,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:47,482 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:47,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:47,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:47,482 INFO L87 Difference]: Start difference. First operand 7730 states and 20440 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:47,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:47,867 INFO L93 Difference]: Finished difference Result 8756 states and 23083 transitions. [2022-03-15 13:52:47,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-15 13:52:47,868 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:47,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:47,880 INFO L225 Difference]: With dead ends: 8756 [2022-03-15 13:52:47,880 INFO L226 Difference]: Without dead ends: 8277 [2022-03-15 13:52:47,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=323, Invalid=867, Unknown=0, NotChecked=0, Total=1190 [2022-03-15 13:52:47,881 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 218 mSDsluCounter, 2485 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 2691 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:47,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 2691 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:47,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8277 states. [2022-03-15 13:52:47,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8277 to 7746. [2022-03-15 13:52:47,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7746 states, 7745 states have (on average 2.644286636539703) internal successors, (20480), 7745 states have internal predecessors, (20480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:47,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7746 states to 7746 states and 20480 transitions. [2022-03-15 13:52:47,994 INFO L78 Accepts]: Start accepts. Automaton has 7746 states and 20480 transitions. Word has length 109 [2022-03-15 13:52:47,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:47,994 INFO L470 AbstractCegarLoop]: Abstraction has 7746 states and 20480 transitions. [2022-03-15 13:52:47,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:47,994 INFO L276 IsEmpty]: Start isEmpty. Operand 7746 states and 20480 transitions. [2022-03-15 13:52:48,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:48,003 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:48,003 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:48,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable303 [2022-03-15 13:52:48,004 INFO L402 AbstractCegarLoop]: === Iteration 305 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:48,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:48,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1192858810, now seen corresponding path program 3 times [2022-03-15 13:52:48,004 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:48,004 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285711389] [2022-03-15 13:52:48,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:48,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:48,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:48,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:48,100 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:48,100 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285711389] [2022-03-15 13:52:48,100 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285711389] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:48,100 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:48,100 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:48,100 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487284098] [2022-03-15 13:52:48,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:48,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:48,100 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:48,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:48,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:48,101 INFO L87 Difference]: Start difference. First operand 7746 states and 20480 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:48,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:48,497 INFO L93 Difference]: Finished difference Result 8734 states and 23027 transitions. [2022-03-15 13:52:48,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:52:48,497 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:48,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:48,509 INFO L225 Difference]: With dead ends: 8734 [2022-03-15 13:52:48,509 INFO L226 Difference]: Without dead ends: 8254 [2022-03-15 13:52:48,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=319, Invalid=1163, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:52:48,509 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 233 mSDsluCounter, 2586 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 2799 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:48,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 2799 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:48,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8254 states. [2022-03-15 13:52:48,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8254 to 7742. [2022-03-15 13:52:48,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7742 states, 7741 states have (on average 2.6442320113680404) internal successors, (20469), 7741 states have internal predecessors, (20469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:48,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7742 states to 7742 states and 20469 transitions. [2022-03-15 13:52:48,618 INFO L78 Accepts]: Start accepts. Automaton has 7742 states and 20469 transitions. Word has length 109 [2022-03-15 13:52:48,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:48,618 INFO L470 AbstractCegarLoop]: Abstraction has 7742 states and 20469 transitions. [2022-03-15 13:52:48,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:48,619 INFO L276 IsEmpty]: Start isEmpty. Operand 7742 states and 20469 transitions. [2022-03-15 13:52:48,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:48,627 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:48,627 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:48,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable304 [2022-03-15 13:52:48,628 INFO L402 AbstractCegarLoop]: === Iteration 306 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:48,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:48,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1981051146, now seen corresponding path program 4 times [2022-03-15 13:52:48,628 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:48,628 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399944889] [2022-03-15 13:52:48,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:48,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:48,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:48,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:48,725 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:48,726 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399944889] [2022-03-15 13:52:48,726 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399944889] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:48,726 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:48,726 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:48,726 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826478752] [2022-03-15 13:52:48,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:48,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:48,726 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:48,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:48,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:48,726 INFO L87 Difference]: Start difference. First operand 7742 states and 20469 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:49,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:49,197 INFO L93 Difference]: Finished difference Result 8770 states and 23122 transitions. [2022-03-15 13:52:49,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:52:49,198 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:49,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:49,210 INFO L225 Difference]: With dead ends: 8770 [2022-03-15 13:52:49,211 INFO L226 Difference]: Without dead ends: 8250 [2022-03-15 13:52:49,211 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 542 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=446, Invalid=1716, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 13:52:49,211 INFO L933 BasicCegarLoop]: 296 mSDtfsCounter, 301 mSDsluCounter, 2652 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 2873 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:49,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 2873 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:49,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8250 states. [2022-03-15 13:52:49,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8250 to 7738. [2022-03-15 13:52:49,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7738 states, 7737 states have (on average 2.6441773297143594) internal successors, (20458), 7737 states have internal predecessors, (20458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:49,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7738 states to 7738 states and 20458 transitions. [2022-03-15 13:52:49,325 INFO L78 Accepts]: Start accepts. Automaton has 7738 states and 20458 transitions. Word has length 109 [2022-03-15 13:52:49,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:49,325 INFO L470 AbstractCegarLoop]: Abstraction has 7738 states and 20458 transitions. [2022-03-15 13:52:49,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:49,325 INFO L276 IsEmpty]: Start isEmpty. Operand 7738 states and 20458 transitions. [2022-03-15 13:52:49,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:49,334 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:49,335 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:49,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305 [2022-03-15 13:52:49,335 INFO L402 AbstractCegarLoop]: === Iteration 307 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:49,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:49,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1455915610, now seen corresponding path program 5 times [2022-03-15 13:52:49,335 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:49,335 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865716970] [2022-03-15 13:52:49,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:49,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:49,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:49,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:49,434 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:49,434 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865716970] [2022-03-15 13:52:49,435 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865716970] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:49,435 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:49,435 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:49,435 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220612017] [2022-03-15 13:52:49,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:49,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:49,435 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:49,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:49,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:49,435 INFO L87 Difference]: Start difference. First operand 7738 states and 20458 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:50,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:50,029 INFO L93 Difference]: Finished difference Result 8806 states and 23217 transitions. [2022-03-15 13:52:50,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-15 13:52:50,029 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:50,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:50,040 INFO L225 Difference]: With dead ends: 8806 [2022-03-15 13:52:50,041 INFO L226 Difference]: Without dead ends: 8246 [2022-03-15 13:52:50,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 816 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=623, Invalid=2347, Unknown=0, NotChecked=0, Total=2970 [2022-03-15 13:52:50,041 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 361 mSDsluCounter, 3223 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 3442 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:50,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 3442 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:50,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8246 states. [2022-03-15 13:52:50,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8246 to 7734. [2022-03-15 13:52:50,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7734 states, 7733 states have (on average 2.6441225914910125) internal successors, (20447), 7733 states have internal predecessors, (20447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:50,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7734 states to 7734 states and 20447 transitions. [2022-03-15 13:52:50,146 INFO L78 Accepts]: Start accepts. Automaton has 7734 states and 20447 transitions. Word has length 109 [2022-03-15 13:52:50,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:50,146 INFO L470 AbstractCegarLoop]: Abstraction has 7734 states and 20447 transitions. [2022-03-15 13:52:50,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:50,146 INFO L276 IsEmpty]: Start isEmpty. Operand 7734 states and 20447 transitions. [2022-03-15 13:52:50,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:50,155 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:50,155 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:50,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306 [2022-03-15 13:52:50,155 INFO L402 AbstractCegarLoop]: === Iteration 308 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:50,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:50,156 INFO L85 PathProgramCache]: Analyzing trace with hash 2108208876, now seen corresponding path program 6 times [2022-03-15 13:52:50,156 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:50,156 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729993976] [2022-03-15 13:52:50,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:50,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:50,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:50,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:50,255 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:50,255 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729993976] [2022-03-15 13:52:50,255 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729993976] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:50,255 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:50,255 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:50,256 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981526149] [2022-03-15 13:52:50,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:50,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:50,256 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:50,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:50,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:50,256 INFO L87 Difference]: Start difference. First operand 7734 states and 20447 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:50,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:50,970 INFO L93 Difference]: Finished difference Result 8802 states and 23202 transitions. [2022-03-15 13:52:50,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-15 13:52:50,970 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:50,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:50,980 INFO L225 Difference]: With dead ends: 8802 [2022-03-15 13:52:50,981 INFO L226 Difference]: Without dead ends: 8182 [2022-03-15 13:52:50,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1129 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=850, Invalid=3056, Unknown=0, NotChecked=0, Total=3906 [2022-03-15 13:52:50,981 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 430 mSDsluCounter, 3186 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 3405 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:50,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [430 Valid, 3405 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:50,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8182 states. [2022-03-15 13:52:51,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8182 to 7710. [2022-03-15 13:52:51,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.6443118433000388) internal successors, (20385), 7709 states have internal predecessors, (20385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:51,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20385 transitions. [2022-03-15 13:52:51,085 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20385 transitions. Word has length 109 [2022-03-15 13:52:51,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:51,085 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20385 transitions. [2022-03-15 13:52:51,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:51,085 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20385 transitions. [2022-03-15 13:52:51,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:51,093 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:51,093 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:51,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable307 [2022-03-15 13:52:51,093 INFO L402 AbstractCegarLoop]: === Iteration 309 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:51,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:51,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1960844258, now seen corresponding path program 7 times [2022-03-15 13:52:51,093 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:51,093 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989537640] [2022-03-15 13:52:51,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:51,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:51,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:51,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:51,205 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:51,205 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989537640] [2022-03-15 13:52:51,205 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989537640] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:51,205 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:51,205 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:51,205 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99870830] [2022-03-15 13:52:51,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:51,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:51,205 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:51,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:51,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:51,206 INFO L87 Difference]: Start difference. First operand 7710 states and 20385 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:51,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:51,622 INFO L93 Difference]: Finished difference Result 8976 states and 23688 transitions. [2022-03-15 13:52:51,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:52:51,622 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:51,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:51,632 INFO L225 Difference]: With dead ends: 8976 [2022-03-15 13:52:51,632 INFO L226 Difference]: Without dead ends: 8497 [2022-03-15 13:52:51,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=348, Invalid=984, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:52:51,633 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 228 mSDsluCounter, 2458 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 2660 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:51,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 2660 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:51,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8497 states. [2022-03-15 13:52:51,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8497 to 7730. [2022-03-15 13:52:51,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7730 states, 7729 states have (on average 2.6440677966101696) internal successors, (20436), 7729 states have internal predecessors, (20436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:51,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7730 states to 7730 states and 20436 transitions. [2022-03-15 13:52:51,740 INFO L78 Accepts]: Start accepts. Automaton has 7730 states and 20436 transitions. Word has length 109 [2022-03-15 13:52:51,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:51,740 INFO L470 AbstractCegarLoop]: Abstraction has 7730 states and 20436 transitions. [2022-03-15 13:52:51,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:51,741 INFO L276 IsEmpty]: Start isEmpty. Operand 7730 states and 20436 transitions. [2022-03-15 13:52:51,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:51,749 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:51,749 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:51,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308 [2022-03-15 13:52:51,750 INFO L402 AbstractCegarLoop]: === Iteration 310 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:51,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:51,750 INFO L85 PathProgramCache]: Analyzing trace with hash -706599920, now seen corresponding path program 8 times [2022-03-15 13:52:51,750 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:51,750 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277706507] [2022-03-15 13:52:51,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:51,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:51,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:51,851 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:51,851 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277706507] [2022-03-15 13:52:51,851 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277706507] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:51,851 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:51,851 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:51,851 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368543192] [2022-03-15 13:52:51,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:51,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:51,851 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:51,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:51,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:51,852 INFO L87 Difference]: Start difference. First operand 7730 states and 20436 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:52,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:52,297 INFO L93 Difference]: Finished difference Result 8942 states and 23599 transitions. [2022-03-15 13:52:52,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:52:52,297 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:52,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:52,310 INFO L225 Difference]: With dead ends: 8942 [2022-03-15 13:52:52,310 INFO L226 Difference]: Without dead ends: 8462 [2022-03-15 13:52:52,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=327, Invalid=1155, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:52:52,310 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 222 mSDsluCounter, 2922 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 3123 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:52,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 3123 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:52,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8462 states. [2022-03-15 13:52:52,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8462 to 7726. [2022-03-15 13:52:52,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7726 states, 7725 states have (on average 2.644012944983819) internal successors, (20425), 7725 states have internal predecessors, (20425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:52,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7726 states to 7726 states and 20425 transitions. [2022-03-15 13:52:52,473 INFO L78 Accepts]: Start accepts. Automaton has 7726 states and 20425 transitions. Word has length 109 [2022-03-15 13:52:52,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:52,473 INFO L470 AbstractCegarLoop]: Abstraction has 7726 states and 20425 transitions. [2022-03-15 13:52:52,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:52,473 INFO L276 IsEmpty]: Start isEmpty. Operand 7726 states and 20425 transitions. [2022-03-15 13:52:52,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:52,482 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:52,482 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:52,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable309 [2022-03-15 13:52:52,482 INFO L402 AbstractCegarLoop]: === Iteration 311 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:52,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:52,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1827657260, now seen corresponding path program 9 times [2022-03-15 13:52:52,483 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:52,483 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542589064] [2022-03-15 13:52:52,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:52,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:52,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:52,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:52,584 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:52,585 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542589064] [2022-03-15 13:52:52,585 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542589064] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:52,585 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:52,585 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:52,585 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844146201] [2022-03-15 13:52:52,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:52,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:52,585 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:52,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:52,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:52,585 INFO L87 Difference]: Start difference. First operand 7726 states and 20425 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:53,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:53,104 INFO L93 Difference]: Finished difference Result 8978 states and 23694 transitions. [2022-03-15 13:52:53,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:52:53,104 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:53,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:53,116 INFO L225 Difference]: With dead ends: 8978 [2022-03-15 13:52:53,116 INFO L226 Difference]: Without dead ends: 8458 [2022-03-15 13:52:53,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=465, Invalid=1697, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 13:52:53,117 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 292 mSDsluCounter, 3011 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 3220 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:53,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [292 Valid, 3220 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:53,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8458 states. [2022-03-15 13:52:53,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8458 to 7722. [2022-03-15 13:52:53,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7722 states, 7721 states have (on average 2.6439580365237663) internal successors, (20414), 7721 states have internal predecessors, (20414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:53,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7722 states to 7722 states and 20414 transitions. [2022-03-15 13:52:53,229 INFO L78 Accepts]: Start accepts. Automaton has 7722 states and 20414 transitions. Word has length 109 [2022-03-15 13:52:53,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:53,229 INFO L470 AbstractCegarLoop]: Abstraction has 7722 states and 20414 transitions. [2022-03-15 13:52:53,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:53,229 INFO L276 IsEmpty]: Start isEmpty. Operand 7722 states and 20414 transitions. [2022-03-15 13:52:53,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:53,238 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:53,238 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:53,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable310 [2022-03-15 13:52:53,238 INFO L402 AbstractCegarLoop]: === Iteration 312 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:53,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:53,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1942174500, now seen corresponding path program 10 times [2022-03-15 13:52:53,238 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:53,238 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820193876] [2022-03-15 13:52:53,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:53,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:53,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:53,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:53,337 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:53,337 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820193876] [2022-03-15 13:52:53,337 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820193876] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:53,337 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:53,337 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:53,337 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548733210] [2022-03-15 13:52:53,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:53,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:53,338 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:53,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:53,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:53,338 INFO L87 Difference]: Start difference. First operand 7722 states and 20414 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:53,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:53,945 INFO L93 Difference]: Finished difference Result 9206 states and 24293 transitions. [2022-03-15 13:52:53,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-15 13:52:53,945 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:53,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:53,957 INFO L225 Difference]: With dead ends: 9206 [2022-03-15 13:52:53,957 INFO L226 Difference]: Without dead ends: 8646 [2022-03-15 13:52:53,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 753 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=631, Invalid=2231, Unknown=0, NotChecked=0, Total=2862 [2022-03-15 13:52:53,958 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 380 mSDsluCounter, 2840 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 3058 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:53,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [380 Valid, 3058 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:53,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8646 states. [2022-03-15 13:52:54,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8646 to 7718. [2022-03-15 13:52:54,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7718 states, 7717 states have (on average 2.643903071141635) internal successors, (20403), 7717 states have internal predecessors, (20403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:54,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7718 states to 7718 states and 20403 transitions. [2022-03-15 13:52:54,078 INFO L78 Accepts]: Start accepts. Automaton has 7718 states and 20403 transitions. Word has length 109 [2022-03-15 13:52:54,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:54,078 INFO L470 AbstractCegarLoop]: Abstraction has 7718 states and 20403 transitions. [2022-03-15 13:52:54,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:54,079 INFO L276 IsEmpty]: Start isEmpty. Operand 7718 states and 20403 transitions. [2022-03-15 13:52:54,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:54,088 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:54,088 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:54,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable311 [2022-03-15 13:52:54,088 INFO L402 AbstractCegarLoop]: === Iteration 313 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:54,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:54,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1751861096, now seen corresponding path program 11 times [2022-03-15 13:52:54,088 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:54,088 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692927569] [2022-03-15 13:52:54,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:54,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:54,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:54,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:54,191 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:54,191 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692927569] [2022-03-15 13:52:54,191 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692927569] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:54,191 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:54,191 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:54,191 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159114480] [2022-03-15 13:52:54,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:54,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:54,192 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:54,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:54,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:54,192 INFO L87 Difference]: Start difference. First operand 7718 states and 20403 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:54,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:54,635 INFO L93 Difference]: Finished difference Result 8952 states and 23618 transitions. [2022-03-15 13:52:54,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:52:54,635 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:54,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:54,647 INFO L225 Difference]: With dead ends: 8952 [2022-03-15 13:52:54,647 INFO L226 Difference]: Without dead ends: 8473 [2022-03-15 13:52:54,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=366, Invalid=1040, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:52:54,648 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 230 mSDsluCounter, 2511 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 2712 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:54,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 2712 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:54,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8473 states. [2022-03-15 13:52:54,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8473 to 7730. [2022-03-15 13:52:54,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7730 states, 7729 states have (on average 2.64355026523483) internal successors, (20432), 7729 states have internal predecessors, (20432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:54,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7730 states to 7730 states and 20432 transitions. [2022-03-15 13:52:54,757 INFO L78 Accepts]: Start accepts. Automaton has 7730 states and 20432 transitions. Word has length 109 [2022-03-15 13:52:54,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:54,757 INFO L470 AbstractCegarLoop]: Abstraction has 7730 states and 20432 transitions. [2022-03-15 13:52:54,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:54,757 INFO L276 IsEmpty]: Start isEmpty. Operand 7730 states and 20432 transitions. [2022-03-15 13:52:54,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:54,766 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:54,766 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:54,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable312 [2022-03-15 13:52:54,766 INFO L402 AbstractCegarLoop]: === Iteration 314 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:54,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:54,766 INFO L85 PathProgramCache]: Analyzing trace with hash -915583082, now seen corresponding path program 12 times [2022-03-15 13:52:54,766 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:54,766 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220332494] [2022-03-15 13:52:54,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:54,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:54,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:54,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:54,880 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:54,881 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220332494] [2022-03-15 13:52:54,881 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220332494] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:54,881 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:54,881 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:54,881 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774056185] [2022-03-15 13:52:54,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:54,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:54,881 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:54,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:54,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:54,881 INFO L87 Difference]: Start difference. First operand 7730 states and 20432 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:55,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:55,307 INFO L93 Difference]: Finished difference Result 8910 states and 23507 transitions. [2022-03-15 13:52:55,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:52:55,308 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:55,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:55,319 INFO L225 Difference]: With dead ends: 8910 [2022-03-15 13:52:55,319 INFO L226 Difference]: Without dead ends: 8430 [2022-03-15 13:52:55,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=1149, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:52:55,319 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 230 mSDsluCounter, 2710 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 2916 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:55,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 2916 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:55,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8430 states. [2022-03-15 13:52:55,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8430 to 7726. [2022-03-15 13:52:55,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7726 states, 7725 states have (on average 2.643495145631068) internal successors, (20421), 7725 states have internal predecessors, (20421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:55,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7726 states to 7726 states and 20421 transitions. [2022-03-15 13:52:55,423 INFO L78 Accepts]: Start accepts. Automaton has 7726 states and 20421 transitions. Word has length 109 [2022-03-15 13:52:55,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:55,424 INFO L470 AbstractCegarLoop]: Abstraction has 7726 states and 20421 transitions. [2022-03-15 13:52:55,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:55,424 INFO L276 IsEmpty]: Start isEmpty. Operand 7726 states and 20421 transitions. [2022-03-15 13:52:55,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:55,432 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:55,432 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:55,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313 [2022-03-15 13:52:55,432 INFO L402 AbstractCegarLoop]: === Iteration 315 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:55,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:55,432 INFO L85 PathProgramCache]: Analyzing trace with hash -2036640422, now seen corresponding path program 13 times [2022-03-15 13:52:55,432 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:55,432 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802989974] [2022-03-15 13:52:55,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:55,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:55,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:55,530 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:55,530 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802989974] [2022-03-15 13:52:55,530 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802989974] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:55,530 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:55,530 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:55,530 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530636581] [2022-03-15 13:52:55,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:55,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:55,530 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:55,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:55,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:55,531 INFO L87 Difference]: Start difference. First operand 7726 states and 20421 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:56,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:56,038 INFO L93 Difference]: Finished difference Result 9078 states and 23949 transitions. [2022-03-15 13:52:56,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:52:56,038 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:56,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:56,051 INFO L225 Difference]: With dead ends: 9078 [2022-03-15 13:52:56,051 INFO L226 Difference]: Without dead ends: 8558 [2022-03-15 13:52:56,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 487 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=453, Invalid=1617, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:52:56,052 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 303 mSDsluCounter, 2992 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 3199 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:56,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [303 Valid, 3199 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:56,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8558 states. [2022-03-15 13:52:56,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8558 to 7722. [2022-03-15 13:52:56,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7722 states, 7721 states have (on average 2.6434399689159433) internal successors, (20410), 7721 states have internal predecessors, (20410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:56,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7722 states to 7722 states and 20410 transitions. [2022-03-15 13:52:56,168 INFO L78 Accepts]: Start accepts. Automaton has 7722 states and 20410 transitions. Word has length 109 [2022-03-15 13:52:56,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:56,168 INFO L470 AbstractCegarLoop]: Abstraction has 7722 states and 20410 transitions. [2022-03-15 13:52:56,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:56,168 INFO L276 IsEmpty]: Start isEmpty. Operand 7722 states and 20410 transitions. [2022-03-15 13:52:56,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:56,177 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:56,177 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:56,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314 [2022-03-15 13:52:56,177 INFO L402 AbstractCegarLoop]: === Iteration 316 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:56,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:56,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1964010698, now seen corresponding path program 14 times [2022-03-15 13:52:56,178 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:56,178 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427662623] [2022-03-15 13:52:56,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:56,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:56,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:56,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:56,279 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:56,279 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427662623] [2022-03-15 13:52:56,279 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427662623] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:56,279 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:56,279 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:56,279 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316984152] [2022-03-15 13:52:56,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:56,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:56,280 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:56,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:56,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:56,280 INFO L87 Difference]: Start difference. First operand 7722 states and 20410 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:56,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:56,815 INFO L93 Difference]: Finished difference Result 8956 states and 23600 transitions. [2022-03-15 13:52:56,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-15 13:52:56,815 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:56,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:56,828 INFO L225 Difference]: With dead ends: 8956 [2022-03-15 13:52:56,828 INFO L226 Difference]: Without dead ends: 8434 [2022-03-15 13:52:56,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=497, Invalid=1309, Unknown=0, NotChecked=0, Total=1806 [2022-03-15 13:52:56,828 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 279 mSDsluCounter, 2530 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 2734 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:56,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 2734 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:56,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8434 states. [2022-03-15 13:52:56,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8434 to 7726. [2022-03-15 13:52:56,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7726 states, 7725 states have (on average 2.6429773462783173) internal successors, (20417), 7725 states have internal predecessors, (20417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:56,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7726 states to 7726 states and 20417 transitions. [2022-03-15 13:52:56,936 INFO L78 Accepts]: Start accepts. Automaton has 7726 states and 20417 transitions. Word has length 109 [2022-03-15 13:52:56,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:56,936 INFO L470 AbstractCegarLoop]: Abstraction has 7726 states and 20417 transitions. [2022-03-15 13:52:56,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:56,936 INFO L276 IsEmpty]: Start isEmpty. Operand 7726 states and 20417 transitions. [2022-03-15 13:52:56,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:56,945 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:56,945 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:56,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315 [2022-03-15 13:52:56,945 INFO L402 AbstractCegarLoop]: === Iteration 317 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:56,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:56,945 INFO L85 PathProgramCache]: Analyzing trace with hash 773041248, now seen corresponding path program 15 times [2022-03-15 13:52:56,945 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:56,945 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776625460] [2022-03-15 13:52:56,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:56,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:56,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:57,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:57,044 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:57,044 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776625460] [2022-03-15 13:52:57,044 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776625460] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:57,044 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:57,044 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:57,044 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087023318] [2022-03-15 13:52:57,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:57,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:57,045 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:57,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:57,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:57,045 INFO L87 Difference]: Start difference. First operand 7726 states and 20417 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:57,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:57,486 INFO L93 Difference]: Finished difference Result 8888 states and 23434 transitions. [2022-03-15 13:52:57,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:52:57,486 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:57,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:57,498 INFO L225 Difference]: With dead ends: 8888 [2022-03-15 13:52:57,498 INFO L226 Difference]: Without dead ends: 8409 [2022-03-15 13:52:57,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=389, Invalid=1171, Unknown=0, NotChecked=0, Total=1560 [2022-03-15 13:52:57,499 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 236 mSDsluCounter, 2336 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 2544 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:57,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 2544 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:57,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8409 states. [2022-03-15 13:52:57,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8409 to 7730. [2022-03-15 13:52:57,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7730 states, 7729 states have (on average 2.6425152024841507) internal successors, (20424), 7729 states have internal predecessors, (20424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:57,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7730 states to 7730 states and 20424 transitions. [2022-03-15 13:52:57,610 INFO L78 Accepts]: Start accepts. Automaton has 7730 states and 20424 transitions. Word has length 109 [2022-03-15 13:52:57,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:57,610 INFO L470 AbstractCegarLoop]: Abstraction has 7730 states and 20424 transitions. [2022-03-15 13:52:57,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:57,610 INFO L276 IsEmpty]: Start isEmpty. Operand 7730 states and 20424 transitions. [2022-03-15 13:52:57,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:57,619 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:57,619 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:57,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable316 [2022-03-15 13:52:57,619 INFO L402 AbstractCegarLoop]: === Iteration 318 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:57,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:57,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1894402930, now seen corresponding path program 16 times [2022-03-15 13:52:57,619 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:57,619 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227640726] [2022-03-15 13:52:57,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:57,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:57,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:57,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:57,717 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:57,717 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227640726] [2022-03-15 13:52:57,717 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227640726] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:57,717 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:57,717 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:57,717 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800841580] [2022-03-15 13:52:57,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:57,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:57,718 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:57,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:57,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:57,718 INFO L87 Difference]: Start difference. First operand 7730 states and 20424 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:58,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:58,107 INFO L93 Difference]: Finished difference Result 8838 states and 23301 transitions. [2022-03-15 13:52:58,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:52:58,107 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:58,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:58,118 INFO L225 Difference]: With dead ends: 8838 [2022-03-15 13:52:58,119 INFO L226 Difference]: Without dead ends: 8346 [2022-03-15 13:52:58,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=315, Invalid=1091, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:52:58,119 INFO L933 BasicCegarLoop]: 280 mSDtfsCounter, 224 mSDsluCounter, 2323 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 2540 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:58,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 2540 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:58,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8346 states. [2022-03-15 13:52:58,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8346 to 7714. [2022-03-15 13:52:58,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.6438480487488656) internal successors, (20392), 7713 states have internal predecessors, (20392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:58,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20392 transitions. [2022-03-15 13:52:58,248 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20392 transitions. Word has length 109 [2022-03-15 13:52:58,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:58,249 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20392 transitions. [2022-03-15 13:52:58,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:58,249 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20392 transitions. [2022-03-15 13:52:58,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:58,257 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:58,257 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:58,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable317 [2022-03-15 13:52:58,257 INFO L402 AbstractCegarLoop]: === Iteration 319 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:58,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:58,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1140279682, now seen corresponding path program 17 times [2022-03-15 13:52:58,258 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:58,258 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720602797] [2022-03-15 13:52:58,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:58,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:58,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:58,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:58,362 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:58,362 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720602797] [2022-03-15 13:52:58,362 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720602797] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:58,362 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:58,362 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:58,362 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357346376] [2022-03-15 13:52:58,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:58,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:58,362 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:58,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:58,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:58,362 INFO L87 Difference]: Start difference. First operand 7714 states and 20392 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:58,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:58,780 INFO L93 Difference]: Finished difference Result 8820 states and 23255 transitions. [2022-03-15 13:52:58,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-15 13:52:58,780 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:58,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:58,791 INFO L225 Difference]: With dead ends: 8820 [2022-03-15 13:52:58,791 INFO L226 Difference]: Without dead ends: 8341 [2022-03-15 13:52:58,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=332, Invalid=928, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:52:58,792 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 230 mSDsluCounter, 2695 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 2889 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:58,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 2889 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:58,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8341 states. [2022-03-15 13:52:58,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8341 to 7730. [2022-03-15 13:52:58,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7730 states, 7729 states have (on average 2.64355026523483) internal successors, (20432), 7729 states have internal predecessors, (20432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:58,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7730 states to 7730 states and 20432 transitions. [2022-03-15 13:52:58,895 INFO L78 Accepts]: Start accepts. Automaton has 7730 states and 20432 transitions. Word has length 109 [2022-03-15 13:52:58,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:58,896 INFO L470 AbstractCegarLoop]: Abstraction has 7730 states and 20432 transitions. [2022-03-15 13:52:58,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:58,896 INFO L276 IsEmpty]: Start isEmpty. Operand 7730 states and 20432 transitions. [2022-03-15 13:52:58,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:58,904 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:58,904 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:58,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable318 [2022-03-15 13:52:58,904 INFO L402 AbstractCegarLoop]: === Iteration 320 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:58,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:58,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1527164496, now seen corresponding path program 18 times [2022-03-15 13:52:58,905 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:58,905 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928192843] [2022-03-15 13:52:58,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:58,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:58,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:59,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:59,009 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:59,009 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928192843] [2022-03-15 13:52:59,009 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928192843] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:59,009 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:59,009 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:59,009 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905518344] [2022-03-15 13:52:59,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:59,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:59,009 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:59,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:59,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:59,011 INFO L87 Difference]: Start difference. First operand 7730 states and 20432 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:59,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:59,428 INFO L93 Difference]: Finished difference Result 8798 states and 23199 transitions. [2022-03-15 13:52:59,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:52:59,428 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:52:59,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:59,440 INFO L225 Difference]: With dead ends: 8798 [2022-03-15 13:52:59,440 INFO L226 Difference]: Without dead ends: 8318 [2022-03-15 13:52:59,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=321, Invalid=1161, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:52:59,441 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 249 mSDsluCounter, 2903 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 3098 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:59,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 3098 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:59,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8318 states. [2022-03-15 13:52:59,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8318 to 7726. [2022-03-15 13:52:59,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7726 states, 7725 states have (on average 2.643495145631068) internal successors, (20421), 7725 states have internal predecessors, (20421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:59,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7726 states to 7726 states and 20421 transitions. [2022-03-15 13:52:59,560 INFO L78 Accepts]: Start accepts. Automaton has 7726 states and 20421 transitions. Word has length 109 [2022-03-15 13:52:59,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:59,560 INFO L470 AbstractCegarLoop]: Abstraction has 7726 states and 20421 transitions. [2022-03-15 13:52:59,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:59,560 INFO L276 IsEmpty]: Start isEmpty. Operand 7726 states and 20421 transitions. [2022-03-15 13:52:59,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:52:59,571 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:59,571 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:59,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable319 [2022-03-15 13:52:59,571 INFO L402 AbstractCegarLoop]: === Iteration 321 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:52:59,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:59,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1646745460, now seen corresponding path program 19 times [2022-03-15 13:52:59,572 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:59,572 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949227939] [2022-03-15 13:52:59,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:59,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:59,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:59,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:59,674 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:59,674 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949227939] [2022-03-15 13:52:59,674 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949227939] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:59,674 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:59,674 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:52:59,674 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335727816] [2022-03-15 13:52:59,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:59,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:52:59,674 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:59,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:52:59,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:52:59,674 INFO L87 Difference]: Start difference. First operand 7726 states and 20421 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:00,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:00,191 INFO L93 Difference]: Finished difference Result 8834 states and 23294 transitions. [2022-03-15 13:53:00,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:53:00,191 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:00,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:00,203 INFO L225 Difference]: With dead ends: 8834 [2022-03-15 13:53:00,203 INFO L226 Difference]: Without dead ends: 8314 [2022-03-15 13:53:00,203 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=454, Invalid=1708, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 13:53:00,204 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 319 mSDsluCounter, 2987 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 3189 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:00,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [319 Valid, 3189 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:00,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8314 states. [2022-03-15 13:53:00,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8314 to 7722. [2022-03-15 13:53:00,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7722 states, 7721 states have (on average 2.6434399689159433) internal successors, (20410), 7721 states have internal predecessors, (20410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:00,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7722 states to 7722 states and 20410 transitions. [2022-03-15 13:53:00,320 INFO L78 Accepts]: Start accepts. Automaton has 7722 states and 20410 transitions. Word has length 109 [2022-03-15 13:53:00,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:00,322 INFO L470 AbstractCegarLoop]: Abstraction has 7722 states and 20410 transitions. [2022-03-15 13:53:00,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:00,322 INFO L276 IsEmpty]: Start isEmpty. Operand 7722 states and 20410 transitions. [2022-03-15 13:53:00,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:00,331 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:00,338 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:00,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable320 [2022-03-15 13:53:00,339 INFO L402 AbstractCegarLoop]: === Iteration 322 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:00,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:00,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1121609924, now seen corresponding path program 20 times [2022-03-15 13:53:00,339 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:00,339 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575662651] [2022-03-15 13:53:00,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:00,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:00,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:00,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:00,442 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:00,442 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575662651] [2022-03-15 13:53:00,442 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575662651] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:00,443 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:00,443 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:00,443 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681192250] [2022-03-15 13:53:00,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:00,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:00,443 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:00,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:00,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:00,443 INFO L87 Difference]: Start difference. First operand 7722 states and 20410 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:01,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:01,054 INFO L93 Difference]: Finished difference Result 8870 states and 23389 transitions. [2022-03-15 13:53:01,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-15 13:53:01,054 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:01,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:01,066 INFO L225 Difference]: With dead ends: 8870 [2022-03-15 13:53:01,066 INFO L226 Difference]: Without dead ends: 8310 [2022-03-15 13:53:01,066 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 767 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=637, Invalid=2333, Unknown=0, NotChecked=0, Total=2970 [2022-03-15 13:53:01,067 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 390 mSDsluCounter, 2831 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 3044 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:01,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [390 Valid, 3044 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:01,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8310 states. [2022-03-15 13:53:01,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8310 to 7718. [2022-03-15 13:53:01,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7718 states, 7717 states have (on average 2.643384735000648) internal successors, (20399), 7717 states have internal predecessors, (20399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:01,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7718 states to 7718 states and 20399 transitions. [2022-03-15 13:53:01,176 INFO L78 Accepts]: Start accepts. Automaton has 7718 states and 20399 transitions. Word has length 109 [2022-03-15 13:53:01,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:01,176 INFO L470 AbstractCegarLoop]: Abstraction has 7718 states and 20399 transitions. [2022-03-15 13:53:01,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:01,176 INFO L276 IsEmpty]: Start isEmpty. Operand 7718 states and 20399 transitions. [2022-03-15 13:53:01,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:01,185 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:01,185 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:01,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable321 [2022-03-15 13:53:01,185 INFO L402 AbstractCegarLoop]: === Iteration 323 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:01,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:01,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1773903190, now seen corresponding path program 21 times [2022-03-15 13:53:01,186 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:01,186 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934613073] [2022-03-15 13:53:01,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:01,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:01,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:01,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:01,290 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:01,290 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934613073] [2022-03-15 13:53:01,290 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934613073] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:01,290 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:01,290 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:01,291 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051208330] [2022-03-15 13:53:01,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:01,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:01,291 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:01,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:01,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:01,291 INFO L87 Difference]: Start difference. First operand 7718 states and 20399 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:01,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:01,992 INFO L93 Difference]: Finished difference Result 8786 states and 23154 transitions. [2022-03-15 13:53:01,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-15 13:53:01,993 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:01,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:02,003 INFO L225 Difference]: With dead ends: 8786 [2022-03-15 13:53:02,004 INFO L226 Difference]: Without dead ends: 8162 [2022-03-15 13:53:02,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1067 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=849, Invalid=2933, Unknown=0, NotChecked=0, Total=3782 [2022-03-15 13:53:02,004 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 430 mSDsluCounter, 2786 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 2998 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:02,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [430 Valid, 2998 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:02,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8162 states. [2022-03-15 13:53:02,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8162 to 7690. [2022-03-15 13:53:02,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6440369358824296) internal successors, (20330), 7689 states have internal predecessors, (20330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:02,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20330 transitions. [2022-03-15 13:53:02,110 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20330 transitions. Word has length 109 [2022-03-15 13:53:02,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:02,111 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20330 transitions. [2022-03-15 13:53:02,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:02,111 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20330 transitions. [2022-03-15 13:53:02,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:02,120 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:02,120 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:02,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable322 [2022-03-15 13:53:02,120 INFO L402 AbstractCegarLoop]: === Iteration 324 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:02,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:02,120 INFO L85 PathProgramCache]: Analyzing trace with hash 252922488, now seen corresponding path program 22 times [2022-03-15 13:53:02,120 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:02,120 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829332179] [2022-03-15 13:53:02,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:02,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:02,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:02,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:02,242 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:02,242 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829332179] [2022-03-15 13:53:02,242 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829332179] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:02,242 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:02,242 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:02,242 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359276132] [2022-03-15 13:53:02,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:02,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:02,242 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:02,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:02,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:02,243 INFO L87 Difference]: Start difference. First operand 7690 states and 20330 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:02,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:02,690 INFO L93 Difference]: Finished difference Result 9176 states and 24238 transitions. [2022-03-15 13:53:02,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:53:02,690 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:02,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:02,702 INFO L225 Difference]: With dead ends: 9176 [2022-03-15 13:53:02,702 INFO L226 Difference]: Without dead ends: 8697 [2022-03-15 13:53:02,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=342, Invalid=990, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:53:02,703 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 229 mSDsluCounter, 2617 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 2809 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:02,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 2809 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:02,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8697 states. [2022-03-15 13:53:02,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8697 to 7714. [2022-03-15 13:53:02,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.6438480487488656) internal successors, (20392), 7713 states have internal predecessors, (20392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:02,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20392 transitions. [2022-03-15 13:53:02,820 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20392 transitions. Word has length 109 [2022-03-15 13:53:02,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:02,820 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20392 transitions. [2022-03-15 13:53:02,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:02,820 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20392 transitions. [2022-03-15 13:53:02,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:02,829 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:02,830 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:02,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable323 [2022-03-15 13:53:02,830 INFO L402 AbstractCegarLoop]: === Iteration 325 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:02,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:02,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1880445606, now seen corresponding path program 23 times [2022-03-15 13:53:02,830 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:02,830 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183273140] [2022-03-15 13:53:02,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:02,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:02,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:02,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:02,936 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:02,936 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183273140] [2022-03-15 13:53:02,936 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183273140] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:02,936 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:02,936 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:02,936 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111330389] [2022-03-15 13:53:02,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:02,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:02,937 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:02,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:02,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:02,937 INFO L87 Difference]: Start difference. First operand 7714 states and 20392 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:03,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:03,376 INFO L93 Difference]: Finished difference Result 9142 states and 24149 transitions. [2022-03-15 13:53:03,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:53:03,376 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:03,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:03,388 INFO L225 Difference]: With dead ends: 9142 [2022-03-15 13:53:03,388 INFO L226 Difference]: Without dead ends: 8662 [2022-03-15 13:53:03,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=331, Invalid=1151, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:53:03,388 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 216 mSDsluCounter, 2799 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 2999 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:03,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 2999 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:03,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8662 states. [2022-03-15 13:53:03,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8662 to 7710. [2022-03-15 13:53:03,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.643792969256713) internal successors, (20381), 7709 states have internal predecessors, (20381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:03,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20381 transitions. [2022-03-15 13:53:03,494 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20381 transitions. Word has length 109 [2022-03-15 13:53:03,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:03,494 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20381 transitions. [2022-03-15 13:53:03,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:03,494 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20381 transitions. [2022-03-15 13:53:03,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:03,503 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:03,503 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:03,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable324 [2022-03-15 13:53:03,503 INFO L402 AbstractCegarLoop]: === Iteration 326 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:03,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:03,503 INFO L85 PathProgramCache]: Analyzing trace with hash 759388266, now seen corresponding path program 24 times [2022-03-15 13:53:03,503 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:03,503 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207297856] [2022-03-15 13:53:03,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:03,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:03,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:03,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:03,609 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:03,609 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207297856] [2022-03-15 13:53:03,609 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207297856] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:03,609 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:03,609 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:03,609 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379908399] [2022-03-15 13:53:03,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:03,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:03,609 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:03,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:03,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:03,609 INFO L87 Difference]: Start difference. First operand 7710 states and 20381 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:04,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:04,161 INFO L93 Difference]: Finished difference Result 9178 states and 24244 transitions. [2022-03-15 13:53:04,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:53:04,162 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:04,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:04,174 INFO L225 Difference]: With dead ends: 9178 [2022-03-15 13:53:04,174 INFO L226 Difference]: Without dead ends: 8658 [2022-03-15 13:53:04,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=474, Invalid=1688, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 13:53:04,175 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 305 mSDsluCounter, 2695 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 2906 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:04,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 2906 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:04,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8658 states. [2022-03-15 13:53:04,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8658 to 7706. [2022-03-15 13:53:04,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7706 states, 7705 states have (on average 2.643737832576249) internal successors, (20370), 7705 states have internal predecessors, (20370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:04,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 20370 transitions. [2022-03-15 13:53:04,305 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 20370 transitions. Word has length 109 [2022-03-15 13:53:04,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:04,305 INFO L470 AbstractCegarLoop]: Abstraction has 7706 states and 20370 transitions. [2022-03-15 13:53:04,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:04,305 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 20370 transitions. [2022-03-15 13:53:04,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:04,314 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:04,314 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:04,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable325 [2022-03-15 13:53:04,315 INFO L402 AbstractCegarLoop]: === Iteration 327 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:04,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:04,315 INFO L85 PathProgramCache]: Analyzing trace with hash 234252730, now seen corresponding path program 25 times [2022-03-15 13:53:04,315 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:04,315 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865285829] [2022-03-15 13:53:04,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:04,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:04,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:04,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:04,430 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:04,430 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865285829] [2022-03-15 13:53:04,430 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865285829] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:04,430 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:04,430 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:04,430 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60926722] [2022-03-15 13:53:04,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:04,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:04,430 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:04,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:04,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:04,431 INFO L87 Difference]: Start difference. First operand 7706 states and 20370 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:05,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:05,049 INFO L93 Difference]: Finished difference Result 9406 states and 24843 transitions. [2022-03-15 13:53:05,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-15 13:53:05,050 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:05,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:05,062 INFO L225 Difference]: With dead ends: 9406 [2022-03-15 13:53:05,063 INFO L226 Difference]: Without dead ends: 8846 [2022-03-15 13:53:05,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 712 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=645, Invalid=2217, Unknown=0, NotChecked=0, Total=2862 [2022-03-15 13:53:05,063 INFO L933 BasicCegarLoop]: 280 mSDtfsCounter, 365 mSDsluCounter, 2943 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 3156 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:05,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 3156 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:05,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8846 states. [2022-03-15 13:53:05,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8846 to 7702. [2022-03-15 13:53:05,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7702 states, 7701 states have (on average 2.6436826386183614) internal successors, (20359), 7701 states have internal predecessors, (20359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:05,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7702 states to 7702 states and 20359 transitions. [2022-03-15 13:53:05,177 INFO L78 Accepts]: Start accepts. Automaton has 7702 states and 20359 transitions. Word has length 109 [2022-03-15 13:53:05,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:05,178 INFO L470 AbstractCegarLoop]: Abstraction has 7702 states and 20359 transitions. [2022-03-15 13:53:05,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:05,178 INFO L276 IsEmpty]: Start isEmpty. Operand 7702 states and 20359 transitions. [2022-03-15 13:53:05,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:05,187 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:05,187 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:05,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable326 [2022-03-15 13:53:05,187 INFO L402 AbstractCegarLoop]: === Iteration 328 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:05,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:05,187 INFO L85 PathProgramCache]: Analyzing trace with hash 43939326, now seen corresponding path program 26 times [2022-03-15 13:53:05,187 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:05,188 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378019153] [2022-03-15 13:53:05,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:05,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:05,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:05,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:05,294 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:05,294 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378019153] [2022-03-15 13:53:05,294 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378019153] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:05,294 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:05,294 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:05,294 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373975651] [2022-03-15 13:53:05,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:05,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:05,294 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:05,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:05,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:05,294 INFO L87 Difference]: Start difference. First operand 7702 states and 20359 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:05,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:05,736 INFO L93 Difference]: Finished difference Result 9152 states and 24168 transitions. [2022-03-15 13:53:05,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:53:05,737 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:05,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:05,749 INFO L225 Difference]: With dead ends: 9152 [2022-03-15 13:53:05,749 INFO L226 Difference]: Without dead ends: 8673 [2022-03-15 13:53:05,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=359, Invalid=1047, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:53:05,749 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 232 mSDsluCounter, 2619 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 2813 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:05,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 2813 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:05,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8673 states. [2022-03-15 13:53:05,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8673 to 7714. [2022-03-15 13:53:05,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.6433294437961883) internal successors, (20388), 7713 states have internal predecessors, (20388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:05,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20388 transitions. [2022-03-15 13:53:05,867 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20388 transitions. Word has length 109 [2022-03-15 13:53:05,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:05,867 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20388 transitions. [2022-03-15 13:53:05,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:05,867 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20388 transitions. [2022-03-15 13:53:05,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:05,876 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:05,876 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:05,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable327 [2022-03-15 13:53:05,876 INFO L402 AbstractCegarLoop]: === Iteration 329 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:05,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:05,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1671462444, now seen corresponding path program 27 times [2022-03-15 13:53:05,876 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:05,877 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619277597] [2022-03-15 13:53:05,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:05,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:05,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:05,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:05,979 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:05,979 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619277597] [2022-03-15 13:53:05,980 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619277597] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:05,980 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:05,980 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:05,980 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086748268] [2022-03-15 13:53:05,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:05,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:05,980 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:05,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:05,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:05,980 INFO L87 Difference]: Start difference. First operand 7714 states and 20388 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:06,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:06,424 INFO L93 Difference]: Finished difference Result 9110 states and 24057 transitions. [2022-03-15 13:53:06,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:53:06,425 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:06,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:06,436 INFO L225 Difference]: With dead ends: 9110 [2022-03-15 13:53:06,437 INFO L226 Difference]: Without dead ends: 8630 [2022-03-15 13:53:06,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=336, Invalid=1146, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:53:06,437 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 232 mSDsluCounter, 2611 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 2815 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:06,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 2815 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:06,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8630 states. [2022-03-15 13:53:06,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8630 to 7710. [2022-03-15 13:53:06,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.643274095213387) internal successors, (20377), 7709 states have internal predecessors, (20377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:06,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20377 transitions. [2022-03-15 13:53:06,547 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20377 transitions. Word has length 109 [2022-03-15 13:53:06,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:06,547 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20377 transitions. [2022-03-15 13:53:06,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:06,548 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20377 transitions. [2022-03-15 13:53:06,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:06,556 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:06,556 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:06,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable328 [2022-03-15 13:53:06,556 INFO L402 AbstractCegarLoop]: === Iteration 330 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:06,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:06,557 INFO L85 PathProgramCache]: Analyzing trace with hash 550405104, now seen corresponding path program 28 times [2022-03-15 13:53:06,557 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:06,557 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373208686] [2022-03-15 13:53:06,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:06,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:06,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:06,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:06,671 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:06,671 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373208686] [2022-03-15 13:53:06,671 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373208686] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:06,671 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:06,671 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:06,671 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603711463] [2022-03-15 13:53:06,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:06,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:06,671 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:06,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:06,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:06,672 INFO L87 Difference]: Start difference. First operand 7710 states and 20377 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:07,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:07,195 INFO L93 Difference]: Finished difference Result 9278 states and 24499 transitions. [2022-03-15 13:53:07,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:53:07,195 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:07,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:07,207 INFO L225 Difference]: With dead ends: 9278 [2022-03-15 13:53:07,207 INFO L226 Difference]: Without dead ends: 8758 [2022-03-15 13:53:07,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=461, Invalid=1609, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:53:07,207 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 316 mSDsluCounter, 2675 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 2884 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:07,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [316 Valid, 2884 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:07,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8758 states. [2022-03-15 13:53:07,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8758 to 7706. [2022-03-15 13:53:07,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7706 states, 7705 states have (on average 2.643218689162881) internal successors, (20366), 7705 states have internal predecessors, (20366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:07,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 20366 transitions. [2022-03-15 13:53:07,313 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 20366 transitions. Word has length 109 [2022-03-15 13:53:07,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:07,314 INFO L470 AbstractCegarLoop]: Abstraction has 7706 states and 20366 transitions. [2022-03-15 13:53:07,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:07,314 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 20366 transitions. [2022-03-15 13:53:07,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:07,322 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:07,322 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:07,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable329 [2022-03-15 13:53:07,323 INFO L402 AbstractCegarLoop]: === Iteration 331 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:07,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:07,323 INFO L85 PathProgramCache]: Analyzing trace with hash 623034828, now seen corresponding path program 29 times [2022-03-15 13:53:07,323 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:07,323 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023605420] [2022-03-15 13:53:07,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:07,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:07,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:07,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:07,433 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:07,433 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023605420] [2022-03-15 13:53:07,433 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023605420] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:07,433 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:07,433 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:07,433 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551934616] [2022-03-15 13:53:07,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:07,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:07,433 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:07,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:07,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:07,434 INFO L87 Difference]: Start difference. First operand 7706 states and 20366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:07,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:07,976 INFO L93 Difference]: Finished difference Result 9196 states and 24260 transitions. [2022-03-15 13:53:07,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-15 13:53:07,976 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:07,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:07,987 INFO L225 Difference]: With dead ends: 9196 [2022-03-15 13:53:07,988 INFO L226 Difference]: Without dead ends: 8674 [2022-03-15 13:53:07,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 394 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=503, Invalid=1389, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 13:53:07,988 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 291 mSDsluCounter, 2214 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 2421 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:07,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 2421 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:07,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8674 states. [2022-03-15 13:53:08,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8674 to 7710. [2022-03-15 13:53:08,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.642755221170061) internal successors, (20373), 7709 states have internal predecessors, (20373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:08,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20373 transitions. [2022-03-15 13:53:08,099 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20373 transitions. Word has length 109 [2022-03-15 13:53:08,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:08,099 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20373 transitions. [2022-03-15 13:53:08,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:08,099 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20373 transitions. [2022-03-15 13:53:08,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:08,108 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:08,108 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:08,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable330 [2022-03-15 13:53:08,108 INFO L402 AbstractCegarLoop]: === Iteration 332 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:08,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:08,108 INFO L85 PathProgramCache]: Analyzing trace with hash -934880522, now seen corresponding path program 30 times [2022-03-15 13:53:08,108 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:08,108 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418801901] [2022-03-15 13:53:08,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:08,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:08,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:08,217 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:08,217 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418801901] [2022-03-15 13:53:08,217 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418801901] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:08,217 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:08,217 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:08,217 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637158861] [2022-03-15 13:53:08,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:08,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:08,218 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:08,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:08,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:08,218 INFO L87 Difference]: Start difference. First operand 7710 states and 20373 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:08,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:08,656 INFO L93 Difference]: Finished difference Result 9096 states and 24006 transitions. [2022-03-15 13:53:08,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:53:08,657 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:08,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:08,669 INFO L225 Difference]: With dead ends: 9096 [2022-03-15 13:53:08,669 INFO L226 Difference]: Without dead ends: 8617 [2022-03-15 13:53:08,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=378, Invalid=1104, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:53:08,669 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 220 mSDsluCounter, 2344 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 2550 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:08,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 2550 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:08,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8617 states. [2022-03-15 13:53:08,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8617 to 7714. [2022-03-15 13:53:08,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.6422922338908337) internal successors, (20380), 7713 states have internal predecessors, (20380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:08,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20380 transitions. [2022-03-15 13:53:08,783 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20380 transitions. Word has length 109 [2022-03-15 13:53:08,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:08,783 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20380 transitions. [2022-03-15 13:53:08,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:08,783 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20380 transitions. [2022-03-15 13:53:08,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:08,792 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:08,792 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:08,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable331 [2022-03-15 13:53:08,792 INFO L402 AbstractCegarLoop]: === Iteration 333 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:08,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:08,792 INFO L85 PathProgramCache]: Analyzing trace with hash 692642596, now seen corresponding path program 31 times [2022-03-15 13:53:08,792 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:08,792 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618985066] [2022-03-15 13:53:08,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:08,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:08,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:08,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:08,903 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:08,903 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618985066] [2022-03-15 13:53:08,903 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618985066] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:08,903 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:08,903 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:08,903 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539570478] [2022-03-15 13:53:08,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:08,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:08,904 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:08,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:08,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:08,904 INFO L87 Difference]: Start difference. First operand 7714 states and 20380 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:09,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:09,315 INFO L93 Difference]: Finished difference Result 9046 states and 23873 transitions. [2022-03-15 13:53:09,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:53:09,316 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:09,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:09,327 INFO L225 Difference]: With dead ends: 9046 [2022-03-15 13:53:09,327 INFO L226 Difference]: Without dead ends: 8554 [2022-03-15 13:53:09,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:53:09,328 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 208 mSDsluCounter, 2805 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 3007 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:09,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 3007 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:09,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8554 states. [2022-03-15 13:53:09,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8554 to 7698. [2022-03-15 13:53:09,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.643627387293751) internal successors, (20348), 7697 states have internal predecessors, (20348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:09,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20348 transitions. [2022-03-15 13:53:09,429 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20348 transitions. Word has length 109 [2022-03-15 13:53:09,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:09,429 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20348 transitions. [2022-03-15 13:53:09,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:09,429 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20348 transitions. [2022-03-15 13:53:09,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:09,437 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:09,438 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:09,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable332 [2022-03-15 13:53:09,438 INFO L402 AbstractCegarLoop]: === Iteration 334 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:09,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:09,438 INFO L85 PathProgramCache]: Analyzing trace with hash -567642088, now seen corresponding path program 32 times [2022-03-15 13:53:09,438 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:09,438 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583106289] [2022-03-15 13:53:09,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:09,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:09,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:09,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:09,551 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:09,551 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583106289] [2022-03-15 13:53:09,551 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583106289] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:09,551 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:09,551 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:09,551 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263772895] [2022-03-15 13:53:09,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:09,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:09,551 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:09,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:09,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:09,552 INFO L87 Difference]: Start difference. First operand 7698 states and 20348 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:10,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:10,010 INFO L93 Difference]: Finished difference Result 8988 states and 23717 transitions. [2022-03-15 13:53:10,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-15 13:53:10,010 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:10,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:10,023 INFO L225 Difference]: With dead ends: 8988 [2022-03-15 13:53:10,023 INFO L226 Difference]: Without dead ends: 8509 [2022-03-15 13:53:10,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=327, Invalid=933, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:53:10,023 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 209 mSDsluCounter, 2788 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2975 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:10,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 2975 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:10,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8509 states. [2022-03-15 13:53:10,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8509 to 7714. [2022-03-15 13:53:10,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.6433294437961883) internal successors, (20388), 7713 states have internal predecessors, (20388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:10,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20388 transitions. [2022-03-15 13:53:10,136 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20388 transitions. Word has length 109 [2022-03-15 13:53:10,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:10,136 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20388 transitions. [2022-03-15 13:53:10,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:10,137 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20388 transitions. [2022-03-15 13:53:10,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:10,146 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:10,146 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:10,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable333 [2022-03-15 13:53:10,146 INFO L402 AbstractCegarLoop]: === Iteration 335 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:10,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:10,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1059881030, now seen corresponding path program 33 times [2022-03-15 13:53:10,146 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:10,146 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820083037] [2022-03-15 13:53:10,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:10,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:10,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:10,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:10,254 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:10,254 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820083037] [2022-03-15 13:53:10,254 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820083037] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:10,254 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:10,254 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:10,254 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524173226] [2022-03-15 13:53:10,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:10,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:10,254 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:10,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:10,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:10,254 INFO L87 Difference]: Start difference. First operand 7714 states and 20388 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:10,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:10,680 INFO L93 Difference]: Finished difference Result 8958 states and 23639 transitions. [2022-03-15 13:53:10,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:53:10,681 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:10,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:10,692 INFO L225 Difference]: With dead ends: 8958 [2022-03-15 13:53:10,692 INFO L226 Difference]: Without dead ends: 8478 [2022-03-15 13:53:10,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=1156, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:53:10,692 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 213 mSDsluCounter, 2811 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 3011 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:10,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 3011 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:10,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8478 states. [2022-03-15 13:53:10,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8478 to 7710. [2022-03-15 13:53:10,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.643274095213387) internal successors, (20377), 7709 states have internal predecessors, (20377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:10,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20377 transitions. [2022-03-15 13:53:10,792 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20377 transitions. Word has length 109 [2022-03-15 13:53:10,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:10,792 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20377 transitions. [2022-03-15 13:53:10,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:10,793 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20377 transitions. [2022-03-15 13:53:10,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:10,801 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:10,801 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:10,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable334 [2022-03-15 13:53:10,801 INFO L402 AbstractCegarLoop]: === Iteration 336 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:10,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:10,801 INFO L85 PathProgramCache]: Analyzing trace with hash -61176310, now seen corresponding path program 34 times [2022-03-15 13:53:10,801 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:10,801 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656114612] [2022-03-15 13:53:10,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:10,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:10,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:10,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:10,906 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:10,906 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656114612] [2022-03-15 13:53:10,906 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656114612] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:10,906 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:10,906 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:10,906 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186470259] [2022-03-15 13:53:10,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:10,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:10,906 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:10,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:10,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:10,907 INFO L87 Difference]: Start difference. First operand 7710 states and 20377 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:11,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:11,425 INFO L93 Difference]: Finished difference Result 8994 states and 23734 transitions. [2022-03-15 13:53:11,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:53:11,425 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:11,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:11,437 INFO L225 Difference]: With dead ends: 8994 [2022-03-15 13:53:11,437 INFO L226 Difference]: Without dead ends: 8474 [2022-03-15 13:53:11,438 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=464, Invalid=1698, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 13:53:11,438 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 283 mSDsluCounter, 2900 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 3108 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:11,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [283 Valid, 3108 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:11,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8474 states. [2022-03-15 13:53:11,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8474 to 7706. [2022-03-15 13:53:11,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7706 states, 7705 states have (on average 2.643218689162881) internal successors, (20366), 7705 states have internal predecessors, (20366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:11,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 20366 transitions. [2022-03-15 13:53:11,545 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 20366 transitions. Word has length 109 [2022-03-15 13:53:11,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:11,545 INFO L470 AbstractCegarLoop]: Abstraction has 7706 states and 20366 transitions. [2022-03-15 13:53:11,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:11,545 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 20366 transitions. [2022-03-15 13:53:11,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:11,554 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:11,554 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:11,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335 [2022-03-15 13:53:11,554 INFO L402 AbstractCegarLoop]: === Iteration 337 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:11,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:11,554 INFO L85 PathProgramCache]: Analyzing trace with hash -586311846, now seen corresponding path program 35 times [2022-03-15 13:53:11,554 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:11,554 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379328034] [2022-03-15 13:53:11,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:11,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:11,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:11,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:11,661 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:11,662 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379328034] [2022-03-15 13:53:11,662 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379328034] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:11,662 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:11,662 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:11,662 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787476119] [2022-03-15 13:53:11,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:11,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:11,662 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:11,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:11,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:11,662 INFO L87 Difference]: Start difference. First operand 7706 states and 20366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:12,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:12,287 INFO L93 Difference]: Finished difference Result 9030 states and 23829 transitions. [2022-03-15 13:53:12,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-15 13:53:12,288 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:12,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:12,299 INFO L225 Difference]: With dead ends: 9030 [2022-03-15 13:53:12,299 INFO L226 Difference]: Without dead ends: 8470 [2022-03-15 13:53:12,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 754 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=652, Invalid=2318, Unknown=0, NotChecked=0, Total=2970 [2022-03-15 13:53:12,300 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 340 mSDsluCounter, 2978 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 3194 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:12,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [340 Valid, 3194 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:12,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8470 states. [2022-03-15 13:53:12,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8470 to 7702. [2022-03-15 13:53:12,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7702 states, 7701 states have (on average 2.6431632255551225) internal successors, (20355), 7701 states have internal predecessors, (20355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:12,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7702 states to 7702 states and 20355 transitions. [2022-03-15 13:53:12,403 INFO L78 Accepts]: Start accepts. Automaton has 7702 states and 20355 transitions. Word has length 109 [2022-03-15 13:53:12,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:12,404 INFO L470 AbstractCegarLoop]: Abstraction has 7702 states and 20355 transitions. [2022-03-15 13:53:12,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:12,404 INFO L276 IsEmpty]: Start isEmpty. Operand 7702 states and 20355 transitions. [2022-03-15 13:53:12,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:12,412 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:12,412 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:12,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable336 [2022-03-15 13:53:12,412 INFO L402 AbstractCegarLoop]: === Iteration 338 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:12,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:12,412 INFO L85 PathProgramCache]: Analyzing trace with hash 65981420, now seen corresponding path program 36 times [2022-03-15 13:53:12,412 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:12,412 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389527554] [2022-03-15 13:53:12,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:12,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:12,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:12,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:12,516 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:12,516 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389527554] [2022-03-15 13:53:12,516 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389527554] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:12,516 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:12,516 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:12,516 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78956248] [2022-03-15 13:53:12,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:12,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:12,516 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:12,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:12,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:12,516 INFO L87 Difference]: Start difference. First operand 7702 states and 20355 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:13,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:13,230 INFO L93 Difference]: Finished difference Result 9238 states and 24361 transitions. [2022-03-15 13:53:13,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-15 13:53:13,230 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:13,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:13,242 INFO L225 Difference]: With dead ends: 9238 [2022-03-15 13:53:13,242 INFO L226 Difference]: Without dead ends: 8634 [2022-03-15 13:53:13,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1005 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=847, Invalid=2813, Unknown=0, NotChecked=0, Total=3660 [2022-03-15 13:53:13,243 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 439 mSDsluCounter, 2954 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 3169 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:13,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [439 Valid, 3169 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:13,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8634 states. [2022-03-15 13:53:13,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8634 to 7694. [2022-03-15 13:53:13,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6435720785129337) internal successors, (20337), 7693 states have internal predecessors, (20337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:13,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20337 transitions. [2022-03-15 13:53:13,354 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20337 transitions. Word has length 109 [2022-03-15 13:53:13,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:13,354 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20337 transitions. [2022-03-15 13:53:13,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:13,354 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20337 transitions. [2022-03-15 13:53:13,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:13,363 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:13,363 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:13,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable337 [2022-03-15 13:53:13,363 INFO L402 AbstractCegarLoop]: === Iteration 339 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:13,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:13,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1695824410, now seen corresponding path program 37 times [2022-03-15 13:53:13,363 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:13,363 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593206327] [2022-03-15 13:53:13,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:13,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:13,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:13,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:13,477 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:13,477 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593206327] [2022-03-15 13:53:13,477 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593206327] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:13,477 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:13,477 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:13,477 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358065825] [2022-03-15 13:53:13,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:13,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:13,477 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:13,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:13,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:13,478 INFO L87 Difference]: Start difference. First operand 7694 states and 20337 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:13,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:13,924 INFO L93 Difference]: Finished difference Result 8956 states and 23629 transitions. [2022-03-15 13:53:13,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:53:13,924 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:13,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:13,936 INFO L225 Difference]: With dead ends: 8956 [2022-03-15 13:53:13,937 INFO L226 Difference]: Without dead ends: 8477 [2022-03-15 13:53:13,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=338, Invalid=994, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:53:13,937 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 220 mSDsluCounter, 2431 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 2625 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:13,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 2625 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:13,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8477 states. [2022-03-15 13:53:14,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8477 to 7714. [2022-03-15 13:53:14,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.6433294437961883) internal successors, (20388), 7713 states have internal predecessors, (20388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:14,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20388 transitions. [2022-03-15 13:53:14,056 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20388 transitions. Word has length 109 [2022-03-15 13:53:14,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:14,056 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20388 transitions. [2022-03-15 13:53:14,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:14,056 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20388 transitions. [2022-03-15 13:53:14,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:14,065 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:14,065 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:14,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable338 [2022-03-15 13:53:14,065 INFO L402 AbstractCegarLoop]: === Iteration 340 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:14,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:14,065 INFO L85 PathProgramCache]: Analyzing trace with hash -971619768, now seen corresponding path program 38 times [2022-03-15 13:53:14,065 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:14,065 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072990814] [2022-03-15 13:53:14,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:14,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:14,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:14,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:14,171 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:14,171 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072990814] [2022-03-15 13:53:14,171 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072990814] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:14,171 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:14,171 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:14,171 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320123674] [2022-03-15 13:53:14,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:14,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:14,171 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:14,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:14,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:14,172 INFO L87 Difference]: Start difference. First operand 7714 states and 20388 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:14,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:14,618 INFO L93 Difference]: Finished difference Result 8922 states and 23540 transitions. [2022-03-15 13:53:14,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:53:14,618 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:14,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:14,629 INFO L225 Difference]: With dead ends: 8922 [2022-03-15 13:53:14,629 INFO L226 Difference]: Without dead ends: 8442 [2022-03-15 13:53:14,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=337, Invalid=1145, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:53:14,630 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 214 mSDsluCounter, 2604 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 2806 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:14,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 2806 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:14,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8442 states. [2022-03-15 13:53:14,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8442 to 7710. [2022-03-15 13:53:14,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.643274095213387) internal successors, (20377), 7709 states have internal predecessors, (20377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:14,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20377 transitions. [2022-03-15 13:53:14,740 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20377 transitions. Word has length 109 [2022-03-15 13:53:14,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:14,741 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20377 transitions. [2022-03-15 13:53:14,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:14,741 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20377 transitions. [2022-03-15 13:53:14,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:14,750 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:14,750 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:14,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable339 [2022-03-15 13:53:14,750 INFO L402 AbstractCegarLoop]: === Iteration 341 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:14,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:14,750 INFO L85 PathProgramCache]: Analyzing trace with hash -2092677108, now seen corresponding path program 39 times [2022-03-15 13:53:14,750 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:14,750 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033040922] [2022-03-15 13:53:14,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:14,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:14,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:14,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:14,855 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:14,855 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033040922] [2022-03-15 13:53:14,855 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033040922] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:14,855 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:14,855 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:14,855 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730469944] [2022-03-15 13:53:14,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:14,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:14,855 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:14,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:14,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:14,856 INFO L87 Difference]: Start difference. First operand 7710 states and 20377 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:15,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:15,410 INFO L93 Difference]: Finished difference Result 8958 states and 23635 transitions. [2022-03-15 13:53:15,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:53:15,410 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:15,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:15,422 INFO L225 Difference]: With dead ends: 8958 [2022-03-15 13:53:15,422 INFO L226 Difference]: Without dead ends: 8438 [2022-03-15 13:53:15,423 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=485, Invalid=1677, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 13:53:15,423 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 283 mSDsluCounter, 2685 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 2895 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:15,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [283 Valid, 2895 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:15,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8438 states. [2022-03-15 13:53:15,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8438 to 7706. [2022-03-15 13:53:15,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7706 states, 7705 states have (on average 2.643218689162881) internal successors, (20366), 7705 states have internal predecessors, (20366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:15,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 20366 transitions. [2022-03-15 13:53:15,535 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 20366 transitions. Word has length 109 [2022-03-15 13:53:15,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:15,535 INFO L470 AbstractCegarLoop]: Abstraction has 7706 states and 20366 transitions. [2022-03-15 13:53:15,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:15,536 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 20366 transitions. [2022-03-15 13:53:15,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:15,544 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:15,544 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:15,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable340 [2022-03-15 13:53:15,544 INFO L402 AbstractCegarLoop]: === Iteration 342 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:15,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:15,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1677154652, now seen corresponding path program 40 times [2022-03-15 13:53:15,545 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:15,545 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417989085] [2022-03-15 13:53:15,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:15,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:15,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:15,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:15,650 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:15,650 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417989085] [2022-03-15 13:53:15,650 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417989085] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:15,650 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:15,650 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:15,650 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766627995] [2022-03-15 13:53:15,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:15,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:15,650 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:15,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:15,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:15,651 INFO L87 Difference]: Start difference. First operand 7706 states and 20366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:16,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:16,266 INFO L93 Difference]: Finished difference Result 9102 states and 24003 transitions. [2022-03-15 13:53:16,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-15 13:53:16,266 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:16,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:16,279 INFO L225 Difference]: With dead ends: 9102 [2022-03-15 13:53:16,279 INFO L226 Difference]: Without dead ends: 8542 [2022-03-15 13:53:16,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 692 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=639, Invalid=2117, Unknown=0, NotChecked=0, Total=2756 [2022-03-15 13:53:16,280 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 356 mSDsluCounter, 2722 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 2936 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:16,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [356 Valid, 2936 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:16,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8542 states. [2022-03-15 13:53:16,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8542 to 7702. [2022-03-15 13:53:16,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7702 states, 7701 states have (on average 2.6431632255551225) internal successors, (20355), 7701 states have internal predecessors, (20355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:16,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7702 states to 7702 states and 20355 transitions. [2022-03-15 13:53:16,386 INFO L78 Accepts]: Start accepts. Automaton has 7702 states and 20355 transitions. Word has length 109 [2022-03-15 13:53:16,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:16,386 INFO L470 AbstractCegarLoop]: Abstraction has 7702 states and 20355 transitions. [2022-03-15 13:53:16,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:16,386 INFO L276 IsEmpty]: Start isEmpty. Operand 7702 states and 20355 transitions. [2022-03-15 13:53:16,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:16,394 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:16,394 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:16,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable341 [2022-03-15 13:53:16,394 INFO L402 AbstractCegarLoop]: === Iteration 343 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:16,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:16,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1486841248, now seen corresponding path program 41 times [2022-03-15 13:53:16,395 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:16,395 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803444199] [2022-03-15 13:53:16,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:16,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:16,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:16,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:16,494 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:16,494 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803444199] [2022-03-15 13:53:16,494 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803444199] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:16,494 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:16,494 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:16,495 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756989932] [2022-03-15 13:53:16,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:16,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:16,495 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:16,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:16,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:16,495 INFO L87 Difference]: Start difference. First operand 7702 states and 20355 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:16,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:16,930 INFO L93 Difference]: Finished difference Result 9028 states and 23823 transitions. [2022-03-15 13:53:16,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:53:16,930 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:16,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:16,942 INFO L225 Difference]: With dead ends: 9028 [2022-03-15 13:53:16,942 INFO L226 Difference]: Without dead ends: 8549 [2022-03-15 13:53:16,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=358, Invalid=1124, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:53:16,943 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 242 mSDsluCounter, 2418 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 2610 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:16,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 2610 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:16,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8549 states. [2022-03-15 13:53:17,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8549 to 7714. [2022-03-15 13:53:17,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.642810838843511) internal successors, (20384), 7713 states have internal predecessors, (20384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:17,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20384 transitions. [2022-03-15 13:53:17,053 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20384 transitions. Word has length 109 [2022-03-15 13:53:17,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:17,053 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20384 transitions. [2022-03-15 13:53:17,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:17,053 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20384 transitions. [2022-03-15 13:53:17,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:17,062 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:17,062 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:17,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable342 [2022-03-15 13:53:17,062 INFO L402 AbstractCegarLoop]: === Iteration 344 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:17,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:17,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1180602930, now seen corresponding path program 42 times [2022-03-15 13:53:17,062 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:17,062 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718799969] [2022-03-15 13:53:17,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:17,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:17,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:17,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:17,162 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:17,162 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718799969] [2022-03-15 13:53:17,162 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718799969] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:17,162 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:17,162 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:17,162 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702259982] [2022-03-15 13:53:17,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:17,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:17,163 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:17,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:17,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:17,163 INFO L87 Difference]: Start difference. First operand 7714 states and 20384 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:17,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:17,583 INFO L93 Difference]: Finished difference Result 8986 states and 23712 transitions. [2022-03-15 13:53:17,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:53:17,583 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:17,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:17,594 INFO L225 Difference]: With dead ends: 8986 [2022-03-15 13:53:17,595 INFO L226 Difference]: Without dead ends: 8506 [2022-03-15 13:53:17,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:53:17,595 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 239 mSDsluCounter, 2401 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 2603 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:17,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [239 Valid, 2603 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:17,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8506 states. [2022-03-15 13:53:17,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8506 to 7710. [2022-03-15 13:53:17,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.642755221170061) internal successors, (20373), 7709 states have internal predecessors, (20373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:17,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20373 transitions. [2022-03-15 13:53:17,703 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20373 transitions. Word has length 109 [2022-03-15 13:53:17,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:17,703 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20373 transitions. [2022-03-15 13:53:17,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:17,703 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20373 transitions. [2022-03-15 13:53:17,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:17,712 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:17,712 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:17,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable343 [2022-03-15 13:53:17,712 INFO L402 AbstractCegarLoop]: === Iteration 345 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:17,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:17,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1993307026, now seen corresponding path program 43 times [2022-03-15 13:53:17,713 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:17,713 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421524783] [2022-03-15 13:53:17,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:17,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:17,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:17,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:17,815 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:17,815 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421524783] [2022-03-15 13:53:17,816 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421524783] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:17,816 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:17,816 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:17,816 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674332140] [2022-03-15 13:53:17,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:17,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:17,816 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:17,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:17,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:17,816 INFO L87 Difference]: Start difference. First operand 7710 states and 20373 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:18,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:18,335 INFO L93 Difference]: Finished difference Result 9114 states and 24044 transitions. [2022-03-15 13:53:18,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:53:18,335 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:18,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:18,347 INFO L225 Difference]: With dead ends: 9114 [2022-03-15 13:53:18,347 INFO L226 Difference]: Without dead ends: 8594 [2022-03-15 13:53:18,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:53:18,347 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 308 mSDsluCounter, 2833 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 3033 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:18,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [308 Valid, 3033 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:18,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8594 states. [2022-03-15 13:53:18,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8594 to 7706. [2022-03-15 13:53:18,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7706 states, 7705 states have (on average 2.6426995457495135) internal successors, (20362), 7705 states have internal predecessors, (20362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:18,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 20362 transitions. [2022-03-15 13:53:18,461 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 20362 transitions. Word has length 109 [2022-03-15 13:53:18,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:18,461 INFO L470 AbstractCegarLoop]: Abstraction has 7706 states and 20362 transitions. [2022-03-15 13:53:18,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:18,461 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 20362 transitions. [2022-03-15 13:53:18,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:18,470 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:18,470 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:18,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable344 [2022-03-15 13:53:18,470 INFO L402 AbstractCegarLoop]: === Iteration 346 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:18,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:18,470 INFO L85 PathProgramCache]: Analyzing trace with hash 2065936750, now seen corresponding path program 44 times [2022-03-15 13:53:18,471 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:18,471 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249713595] [2022-03-15 13:53:18,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:18,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:18,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:18,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:18,578 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:18,578 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249713595] [2022-03-15 13:53:18,578 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249713595] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:18,578 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:18,578 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:18,578 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922863886] [2022-03-15 13:53:18,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:18,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:18,578 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:18,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:18,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:18,579 INFO L87 Difference]: Start difference. First operand 7706 states and 20362 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:19,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:19,156 INFO L93 Difference]: Finished difference Result 9116 states and 24036 transitions. [2022-03-15 13:53:19,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-15 13:53:19,156 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:19,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:19,168 INFO L225 Difference]: With dead ends: 9116 [2022-03-15 13:53:19,169 INFO L226 Difference]: Without dead ends: 8594 [2022-03-15 13:53:19,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=515, Invalid=1465, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 13:53:19,169 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 289 mSDsluCounter, 2675 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 2865 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:19,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 2865 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:19,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8594 states. [2022-03-15 13:53:19,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8594 to 7710. [2022-03-15 13:53:19,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.642236347126735) internal successors, (20369), 7709 states have internal predecessors, (20369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:19,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20369 transitions. [2022-03-15 13:53:19,286 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20369 transitions. Word has length 109 [2022-03-15 13:53:19,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:19,286 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20369 transitions. [2022-03-15 13:53:19,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:19,286 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20369 transitions. [2022-03-15 13:53:19,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:19,295 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:19,295 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:19,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable345 [2022-03-15 13:53:19,295 INFO L402 AbstractCegarLoop]: === Iteration 347 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:19,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:19,295 INFO L85 PathProgramCache]: Analyzing trace with hash 508021400, now seen corresponding path program 45 times [2022-03-15 13:53:19,295 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:19,295 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818910218] [2022-03-15 13:53:19,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:19,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:19,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:19,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:19,403 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:19,403 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818910218] [2022-03-15 13:53:19,403 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818910218] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:19,403 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:19,403 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:19,403 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977161686] [2022-03-15 13:53:19,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:19,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:19,403 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:19,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:19,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:19,404 INFO L87 Difference]: Start difference. First operand 7710 states and 20369 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:19,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:19,845 INFO L93 Difference]: Finished difference Result 8968 states and 23650 transitions. [2022-03-15 13:53:19,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:53:19,846 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:19,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:19,858 INFO L225 Difference]: With dead ends: 8968 [2022-03-15 13:53:19,858 INFO L226 Difference]: Without dead ends: 8489 [2022-03-15 13:53:19,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=374, Invalid=1108, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:53:19,859 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 226 mSDsluCounter, 2317 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 2518 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:19,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 2518 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:19,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8489 states. [2022-03-15 13:53:19,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8489 to 7714. [2022-03-15 13:53:19,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.6417736289381564) internal successors, (20376), 7713 states have internal predecessors, (20376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:19,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20376 transitions. [2022-03-15 13:53:19,971 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20376 transitions. Word has length 109 [2022-03-15 13:53:19,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:19,971 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20376 transitions. [2022-03-15 13:53:19,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:19,971 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20376 transitions. [2022-03-15 13:53:19,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:19,980 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:19,980 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:19,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable346 [2022-03-15 13:53:19,980 INFO L402 AbstractCegarLoop]: === Iteration 348 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:19,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:19,980 INFO L85 PathProgramCache]: Analyzing trace with hash 2135544518, now seen corresponding path program 46 times [2022-03-15 13:53:19,980 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:19,980 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051218215] [2022-03-15 13:53:19,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:19,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:19,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:20,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:20,083 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:20,083 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051218215] [2022-03-15 13:53:20,083 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051218215] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:20,083 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:20,083 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:20,083 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611132860] [2022-03-15 13:53:20,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:20,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:20,083 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:20,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:20,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:20,083 INFO L87 Difference]: Start difference. First operand 7714 states and 20376 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:20,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:20,500 INFO L93 Difference]: Finished difference Result 8886 states and 23429 transitions. [2022-03-15 13:53:20,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:53:20,501 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:20,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:20,513 INFO L225 Difference]: With dead ends: 8886 [2022-03-15 13:53:20,513 INFO L226 Difference]: Without dead ends: 8394 [2022-03-15 13:53:20,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=323, Invalid=1083, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:53:20,514 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 213 mSDsluCounter, 2751 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2944 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:20,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 2944 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:20,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8394 states. [2022-03-15 13:53:20,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8394 to 7698. [2022-03-15 13:53:20,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.643107704300377) internal successors, (20344), 7697 states have internal predecessors, (20344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:20,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20344 transitions. [2022-03-15 13:53:20,632 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20344 transitions. Word has length 109 [2022-03-15 13:53:20,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:20,632 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20344 transitions. [2022-03-15 13:53:20,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:20,632 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20344 transitions. [2022-03-15 13:53:20,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:20,641 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:20,641 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:20,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable347 [2022-03-15 13:53:20,641 INFO L402 AbstractCegarLoop]: === Iteration 349 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:20,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:20,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1438805144, now seen corresponding path program 47 times [2022-03-15 13:53:20,642 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:20,642 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568664414] [2022-03-15 13:53:20,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:20,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:20,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:20,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:20,748 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:20,748 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568664414] [2022-03-15 13:53:20,748 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568664414] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:20,748 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:20,748 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:20,748 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970239029] [2022-03-15 13:53:20,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:20,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:20,748 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:20,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:20,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:20,749 INFO L87 Difference]: Start difference. First operand 7698 states and 20344 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:21,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:21,186 INFO L93 Difference]: Finished difference Result 8924 states and 23537 transitions. [2022-03-15 13:53:21,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:53:21,187 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:21,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:21,199 INFO L225 Difference]: With dead ends: 8924 [2022-03-15 13:53:21,199 INFO L226 Difference]: Without dead ends: 8445 [2022-03-15 13:53:21,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=351, Invalid=1055, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:53:21,200 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 247 mSDsluCounter, 2008 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 2207 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:21,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 2207 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:21,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8445 states. [2022-03-15 13:53:21,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8445 to 7714. [2022-03-15 13:53:21,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.642810838843511) internal successors, (20384), 7713 states have internal predecessors, (20384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:21,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20384 transitions. [2022-03-15 13:53:21,310 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20384 transitions. Word has length 109 [2022-03-15 13:53:21,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:21,310 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20384 transitions. [2022-03-15 13:53:21,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:21,310 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20384 transitions. [2022-03-15 13:53:21,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:21,319 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:21,319 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:21,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable348 [2022-03-15 13:53:21,319 INFO L402 AbstractCegarLoop]: === Iteration 350 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:21,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:21,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1228639034, now seen corresponding path program 48 times [2022-03-15 13:53:21,319 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:21,319 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052706666] [2022-03-15 13:53:21,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:21,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:21,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:21,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:21,421 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:21,421 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052706666] [2022-03-15 13:53:21,421 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052706666] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:21,421 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:21,421 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:21,421 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318314206] [2022-03-15 13:53:21,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:21,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:21,421 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:21,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:21,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:21,421 INFO L87 Difference]: Start difference. First operand 7714 states and 20384 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:21,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:21,862 INFO L93 Difference]: Finished difference Result 8882 states and 23426 transitions. [2022-03-15 13:53:21,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:53:21,862 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:21,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:21,874 INFO L225 Difference]: With dead ends: 8882 [2022-03-15 13:53:21,875 INFO L226 Difference]: Without dead ends: 8402 [2022-03-15 13:53:21,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=348, Invalid=1134, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:53:21,875 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 226 mSDsluCounter, 2386 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 2586 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:21,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 2586 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:21,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8402 states. [2022-03-15 13:53:21,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8402 to 7710. [2022-03-15 13:53:21,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.642755221170061) internal successors, (20373), 7709 states have internal predecessors, (20373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:21,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20373 transitions. [2022-03-15 13:53:21,990 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20373 transitions. Word has length 109 [2022-03-15 13:53:21,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:21,990 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20373 transitions. [2022-03-15 13:53:21,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:21,990 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20373 transitions. [2022-03-15 13:53:21,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:21,999 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:21,999 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:21,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable349 [2022-03-15 13:53:21,999 INFO L402 AbstractCegarLoop]: === Iteration 351 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:22,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:22,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1945270922, now seen corresponding path program 49 times [2022-03-15 13:53:22,000 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:22,000 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570810611] [2022-03-15 13:53:22,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:22,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:22,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:22,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:22,108 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:22,108 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570810611] [2022-03-15 13:53:22,108 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570810611] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:22,108 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:22,108 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:22,108 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513857882] [2022-03-15 13:53:22,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:22,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:22,108 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:22,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:22,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:22,109 INFO L87 Difference]: Start difference. First operand 7710 states and 20373 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:22,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:22,574 INFO L93 Difference]: Finished difference Result 8990 states and 23703 transitions. [2022-03-15 13:53:22,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-15 13:53:22,574 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:22,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:22,585 INFO L225 Difference]: With dead ends: 8990 [2022-03-15 13:53:22,586 INFO L226 Difference]: Without dead ends: 8470 [2022-03-15 13:53:22,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=461, Invalid=1519, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 13:53:22,586 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 313 mSDsluCounter, 2239 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 2446 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:22,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [313 Valid, 2446 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:22,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8470 states. [2022-03-15 13:53:22,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8470 to 7706. [2022-03-15 13:53:22,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7706 states, 7705 states have (on average 2.6426995457495135) internal successors, (20362), 7705 states have internal predecessors, (20362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:22,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 20362 transitions. [2022-03-15 13:53:22,698 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 20362 transitions. Word has length 109 [2022-03-15 13:53:22,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:22,698 INFO L470 AbstractCegarLoop]: Abstraction has 7706 states and 20362 transitions. [2022-03-15 13:53:22,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:22,698 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 20362 transitions. [2022-03-15 13:53:22,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:22,706 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:22,706 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:22,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable350 [2022-03-15 13:53:22,706 INFO L402 AbstractCegarLoop]: === Iteration 352 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:22,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:22,706 INFO L85 PathProgramCache]: Analyzing trace with hash 2017900646, now seen corresponding path program 50 times [2022-03-15 13:53:22,706 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:22,706 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547390576] [2022-03-15 13:53:22,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:22,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:22,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:22,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:22,808 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:22,808 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547390576] [2022-03-15 13:53:22,808 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547390576] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:22,808 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:22,808 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:22,808 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856242144] [2022-03-15 13:53:22,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:22,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:22,809 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:22,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:22,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:22,809 INFO L87 Difference]: Start difference. First operand 7706 states and 20362 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:23,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:23,362 INFO L93 Difference]: Finished difference Result 9088 states and 23959 transitions. [2022-03-15 13:53:23,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:53:23,363 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:23,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:23,375 INFO L225 Difference]: With dead ends: 9088 [2022-03-15 13:53:23,375 INFO L226 Difference]: Without dead ends: 8566 [2022-03-15 13:53:23,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=528, Invalid=1542, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:53:23,376 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 329 mSDsluCounter, 2424 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 2616 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:23,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [329 Valid, 2616 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:23,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8566 states. [2022-03-15 13:53:23,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8566 to 7710. [2022-03-15 13:53:23,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.642236347126735) internal successors, (20369), 7709 states have internal predecessors, (20369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:23,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20369 transitions. [2022-03-15 13:53:23,483 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20369 transitions. Word has length 109 [2022-03-15 13:53:23,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:23,483 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20369 transitions. [2022-03-15 13:53:23,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:23,483 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20369 transitions. [2022-03-15 13:53:23,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:23,492 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:23,492 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:23,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable351 [2022-03-15 13:53:23,492 INFO L402 AbstractCegarLoop]: === Iteration 353 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:23,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:23,492 INFO L85 PathProgramCache]: Analyzing trace with hash 459985296, now seen corresponding path program 51 times [2022-03-15 13:53:23,492 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:23,492 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810578148] [2022-03-15 13:53:23,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:23,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:23,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:23,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:23,604 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:23,604 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810578148] [2022-03-15 13:53:23,605 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810578148] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:23,605 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:23,605 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:23,605 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038944344] [2022-03-15 13:53:23,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:23,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:23,605 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:23,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:23,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:23,605 INFO L87 Difference]: Start difference. First operand 7710 states and 20369 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:24,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:24,026 INFO L93 Difference]: Finished difference Result 8924 states and 23529 transitions. [2022-03-15 13:53:24,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:53:24,027 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:24,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:24,040 INFO L225 Difference]: With dead ends: 8924 [2022-03-15 13:53:24,040 INFO L226 Difference]: Without dead ends: 8445 [2022-03-15 13:53:24,040 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=370, Invalid=1112, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:53:24,040 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 264 mSDsluCounter, 1949 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 2150 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:24,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [264 Valid, 2150 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:24,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8445 states. [2022-03-15 13:53:24,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8445 to 7714. [2022-03-15 13:53:24,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.6417736289381564) internal successors, (20376), 7713 states have internal predecessors, (20376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:24,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20376 transitions. [2022-03-15 13:53:24,158 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20376 transitions. Word has length 109 [2022-03-15 13:53:24,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:24,158 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20376 transitions. [2022-03-15 13:53:24,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:24,158 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20376 transitions. [2022-03-15 13:53:24,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:24,166 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:24,166 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:24,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable352 [2022-03-15 13:53:24,166 INFO L402 AbstractCegarLoop]: === Iteration 354 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:24,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:24,167 INFO L85 PathProgramCache]: Analyzing trace with hash 2087508414, now seen corresponding path program 52 times [2022-03-15 13:53:24,167 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:24,167 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761153178] [2022-03-15 13:53:24,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:24,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:24,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:24,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:24,271 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:24,271 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761153178] [2022-03-15 13:53:24,271 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761153178] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:24,271 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:24,271 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:24,271 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807327241] [2022-03-15 13:53:24,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:24,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:24,271 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:24,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:24,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:24,272 INFO L87 Difference]: Start difference. First operand 7714 states and 20376 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:24,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:24,676 INFO L93 Difference]: Finished difference Result 8858 states and 23352 transitions. [2022-03-15 13:53:24,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:53:24,677 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:24,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:24,688 INFO L225 Difference]: With dead ends: 8858 [2022-03-15 13:53:24,688 INFO L226 Difference]: Without dead ends: 8370 [2022-03-15 13:53:24,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=329, Invalid=1077, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:53:24,688 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 245 mSDsluCounter, 2533 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 2722 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:24,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 2722 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:24,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8370 states. [2022-03-15 13:53:24,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8370 to 7702. [2022-03-15 13:53:24,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7702 states, 7701 states have (on average 2.642643812491884) internal successors, (20351), 7701 states have internal predecessors, (20351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:24,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7702 states to 7702 states and 20351 transitions. [2022-03-15 13:53:24,789 INFO L78 Accepts]: Start accepts. Automaton has 7702 states and 20351 transitions. Word has length 109 [2022-03-15 13:53:24,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:24,789 INFO L470 AbstractCegarLoop]: Abstraction has 7702 states and 20351 transitions. [2022-03-15 13:53:24,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:24,789 INFO L276 IsEmpty]: Start isEmpty. Operand 7702 states and 20351 transitions. [2022-03-15 13:53:24,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:24,798 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:24,798 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:24,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable353 [2022-03-15 13:53:24,798 INFO L402 AbstractCegarLoop]: === Iteration 355 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:24,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:24,799 INFO L85 PathProgramCache]: Analyzing trace with hash 805164314, now seen corresponding path program 53 times [2022-03-15 13:53:24,799 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:24,799 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816143061] [2022-03-15 13:53:24,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:24,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:24,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:24,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:24,899 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:24,899 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816143061] [2022-03-15 13:53:24,900 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816143061] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:24,900 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:24,900 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:24,900 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348760443] [2022-03-15 13:53:24,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:24,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:24,900 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:24,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:24,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:24,900 INFO L87 Difference]: Start difference. First operand 7702 states and 20351 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:25,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:25,545 INFO L93 Difference]: Finished difference Result 9025 states and 23767 transitions. [2022-03-15 13:53:25,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-15 13:53:25,546 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:25,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:25,557 INFO L225 Difference]: With dead ends: 9025 [2022-03-15 13:53:25,558 INFO L226 Difference]: Without dead ends: 8460 [2022-03-15 13:53:25,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 645 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=681, Invalid=1869, Unknown=0, NotChecked=0, Total=2550 [2022-03-15 13:53:25,558 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 389 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 2374 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:25,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [389 Valid, 2374 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:25,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8460 states. [2022-03-15 13:53:25,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8460 to 7706. [2022-03-15 13:53:25,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7706 states, 7705 states have (on average 2.6421804023361455) internal successors, (20358), 7705 states have internal predecessors, (20358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:25,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 20358 transitions. [2022-03-15 13:53:25,674 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 20358 transitions. Word has length 109 [2022-03-15 13:53:25,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:25,674 INFO L470 AbstractCegarLoop]: Abstraction has 7706 states and 20358 transitions. [2022-03-15 13:53:25,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:25,674 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 20358 transitions. [2022-03-15 13:53:25,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:25,682 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:25,682 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:25,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable354 [2022-03-15 13:53:25,683 INFO L402 AbstractCegarLoop]: === Iteration 356 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:25,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:25,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1669595376, now seen corresponding path program 54 times [2022-03-15 13:53:25,683 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:25,683 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580877717] [2022-03-15 13:53:25,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:25,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:25,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:25,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:25,787 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:25,787 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580877717] [2022-03-15 13:53:25,787 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580877717] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:25,787 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:25,787 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:25,787 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148116537] [2022-03-15 13:53:25,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:25,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:25,787 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:25,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:25,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:25,787 INFO L87 Difference]: Start difference. First operand 7706 states and 20358 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:26,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:26,367 INFO L93 Difference]: Finished difference Result 8920 states and 23493 transitions. [2022-03-15 13:53:26,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:53:26,368 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:26,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:26,377 INFO L225 Difference]: With dead ends: 8920 [2022-03-15 13:53:26,377 INFO L226 Difference]: Without dead ends: 8398 [2022-03-15 13:53:26,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=542, Invalid=1620, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 13:53:26,378 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 342 mSDsluCounter, 2585 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 2774 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:26,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [342 Valid, 2774 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:26,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8398 states. [2022-03-15 13:53:26,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8398 to 7710. [2022-03-15 13:53:26,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.641717473083409) internal successors, (20365), 7709 states have internal predecessors, (20365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:26,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20365 transitions. [2022-03-15 13:53:26,466 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20365 transitions. Word has length 109 [2022-03-15 13:53:26,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:26,466 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20365 transitions. [2022-03-15 13:53:26,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:26,466 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20365 transitions. [2022-03-15 13:53:26,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:26,474 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:26,474 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:26,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable355 [2022-03-15 13:53:26,474 INFO L402 AbstractCegarLoop]: === Iteration 357 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:26,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:26,474 INFO L85 PathProgramCache]: Analyzing trace with hash 111680026, now seen corresponding path program 55 times [2022-03-15 13:53:26,474 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:26,474 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741397389] [2022-03-15 13:53:26,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:26,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:26,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:26,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:26,577 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:26,577 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741397389] [2022-03-15 13:53:26,577 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741397389] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:26,577 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:26,577 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:26,578 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861064379] [2022-03-15 13:53:26,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:26,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:26,578 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:26,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:26,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:26,578 INFO L87 Difference]: Start difference. First operand 7710 states and 20365 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:26,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:26,996 INFO L93 Difference]: Finished difference Result 8796 states and 23173 transitions. [2022-03-15 13:53:26,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:53:26,996 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:26,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:27,006 INFO L225 Difference]: With dead ends: 8796 [2022-03-15 13:53:27,006 INFO L226 Difference]: Without dead ends: 8317 [2022-03-15 13:53:27,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=366, Invalid=1116, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:53:27,007 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 279 mSDsluCounter, 2036 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 2227 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:27,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 2227 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:27,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8317 states. [2022-03-15 13:53:27,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8317 to 7714. [2022-03-15 13:53:27,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.641255023985479) internal successors, (20372), 7713 states have internal predecessors, (20372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:27,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20372 transitions. [2022-03-15 13:53:27,096 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20372 transitions. Word has length 109 [2022-03-15 13:53:27,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:27,096 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20372 transitions. [2022-03-15 13:53:27,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:27,096 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20372 transitions. [2022-03-15 13:53:27,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:27,105 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:27,105 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:27,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable356 [2022-03-15 13:53:27,105 INFO L402 AbstractCegarLoop]: === Iteration 358 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:27,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:27,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1739203144, now seen corresponding path program 56 times [2022-03-15 13:53:27,106 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:27,106 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931748986] [2022-03-15 13:53:27,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:27,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:27,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:27,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:27,228 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:27,228 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931748986] [2022-03-15 13:53:27,228 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931748986] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:27,228 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:27,228 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:27,229 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056219001] [2022-03-15 13:53:27,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:27,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:27,229 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:27,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:27,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:27,229 INFO L87 Difference]: Start difference. First operand 7714 states and 20372 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:27,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:27,565 INFO L93 Difference]: Finished difference Result 8662 states and 22809 transitions. [2022-03-15 13:53:27,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:53:27,565 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:27,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:27,575 INFO L225 Difference]: With dead ends: 8662 [2022-03-15 13:53:27,575 INFO L226 Difference]: Without dead ends: 8142 [2022-03-15 13:53:27,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=310, Invalid=950, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:53:27,575 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 224 mSDsluCounter, 1717 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 1918 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:27,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 1918 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:27,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8142 states. [2022-03-15 13:53:27,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8142 to 7670. [2022-03-15 13:53:27,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7670 states, 7669 states have (on average 2.643760594601643) internal successors, (20275), 7669 states have internal predecessors, (20275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:27,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7670 states to 7670 states and 20275 transitions. [2022-03-15 13:53:27,665 INFO L78 Accepts]: Start accepts. Automaton has 7670 states and 20275 transitions. Word has length 109 [2022-03-15 13:53:27,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:27,665 INFO L470 AbstractCegarLoop]: Abstraction has 7670 states and 20275 transitions. [2022-03-15 13:53:27,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:27,665 INFO L276 IsEmpty]: Start isEmpty. Operand 7670 states and 20275 transitions. [2022-03-15 13:53:27,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:27,673 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:27,673 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:27,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable357 [2022-03-15 13:53:27,673 INFO L402 AbstractCegarLoop]: === Iteration 359 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:27,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:27,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1409171550, now seen corresponding path program 57 times [2022-03-15 13:53:27,673 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:27,673 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656375175] [2022-03-15 13:53:27,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:27,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:27,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:27,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:27,802 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:27,802 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656375175] [2022-03-15 13:53:27,802 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656375175] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:27,802 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:27,802 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:27,802 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515447206] [2022-03-15 13:53:27,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:27,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:27,802 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:27,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:27,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:27,803 INFO L87 Difference]: Start difference. First operand 7670 states and 20275 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:28,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:28,210 INFO L93 Difference]: Finished difference Result 9236 states and 24403 transitions. [2022-03-15 13:53:28,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:53:28,210 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:28,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:28,222 INFO L225 Difference]: With dead ends: 9236 [2022-03-15 13:53:28,222 INFO L226 Difference]: Without dead ends: 8757 [2022-03-15 13:53:28,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=315, Invalid=945, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:53:28,223 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 197 mSDsluCounter, 2463 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 2656 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:28,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 2656 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:28,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8757 states. [2022-03-15 13:53:28,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8757 to 7698. [2022-03-15 13:53:28,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.643627387293751) internal successors, (20348), 7697 states have internal predecessors, (20348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:28,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20348 transitions. [2022-03-15 13:53:28,324 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20348 transitions. Word has length 109 [2022-03-15 13:53:28,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:28,324 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20348 transitions. [2022-03-15 13:53:28,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:28,324 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20348 transitions. [2022-03-15 13:53:28,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:28,333 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:28,333 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:28,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable358 [2022-03-15 13:53:28,333 INFO L402 AbstractCegarLoop]: === Iteration 360 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:28,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:28,333 INFO L85 PathProgramCache]: Analyzing trace with hash 218351568, now seen corresponding path program 58 times [2022-03-15 13:53:28,333 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:28,333 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381024528] [2022-03-15 13:53:28,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:28,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:28,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:28,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:28,438 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:28,438 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381024528] [2022-03-15 13:53:28,438 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381024528] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:28,438 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:28,439 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:28,439 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151306564] [2022-03-15 13:53:28,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:28,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:28,439 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:28,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:28,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:28,439 INFO L87 Difference]: Start difference. First operand 7698 states and 20348 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:28,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:28,854 INFO L93 Difference]: Finished difference Result 9202 states and 24314 transitions. [2022-03-15 13:53:28,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:53:28,854 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:28,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:28,865 INFO L225 Difference]: With dead ends: 9202 [2022-03-15 13:53:28,865 INFO L226 Difference]: Without dead ends: 8722 [2022-03-15 13:53:28,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=312, Invalid=1094, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:53:28,866 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 216 mSDsluCounter, 2511 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 2713 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:28,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 2713 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:28,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8722 states. [2022-03-15 13:53:28,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8722 to 7694. [2022-03-15 13:53:28,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6435720785129337) internal successors, (20337), 7693 states have internal predecessors, (20337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:28,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20337 transitions. [2022-03-15 13:53:28,963 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20337 transitions. Word has length 109 [2022-03-15 13:53:28,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:28,963 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20337 transitions. [2022-03-15 13:53:28,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:28,963 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20337 transitions. [2022-03-15 13:53:28,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:28,971 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:28,971 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:28,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable359 [2022-03-15 13:53:28,971 INFO L402 AbstractCegarLoop]: === Iteration 361 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:28,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:28,972 INFO L85 PathProgramCache]: Analyzing trace with hash -902705772, now seen corresponding path program 59 times [2022-03-15 13:53:28,972 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:28,972 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145808899] [2022-03-15 13:53:28,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:28,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:28,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:29,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:29,077 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:29,077 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145808899] [2022-03-15 13:53:29,077 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145808899] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:29,077 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:29,077 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:29,077 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455075080] [2022-03-15 13:53:29,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:29,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:29,077 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:29,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:29,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:29,078 INFO L87 Difference]: Start difference. First operand 7694 states and 20337 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:29,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:29,612 INFO L93 Difference]: Finished difference Result 9238 states and 24409 transitions. [2022-03-15 13:53:29,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:53:29,612 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:29,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:29,624 INFO L225 Difference]: With dead ends: 9238 [2022-03-15 13:53:29,624 INFO L226 Difference]: Without dead ends: 8718 [2022-03-15 13:53:29,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=454, Invalid=1616, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:53:29,625 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 270 mSDsluCounter, 2758 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 2966 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:29,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 2966 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:29,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8718 states. [2022-03-15 13:53:29,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8718 to 7690. [2022-03-15 13:53:29,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.64351671218624) internal successors, (20326), 7689 states have internal predecessors, (20326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:29,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20326 transitions. [2022-03-15 13:53:29,731 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20326 transitions. Word has length 109 [2022-03-15 13:53:29,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:29,731 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20326 transitions. [2022-03-15 13:53:29,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:29,732 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20326 transitions. [2022-03-15 13:53:29,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:29,740 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:29,740 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:29,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable360 [2022-03-15 13:53:29,740 INFO L402 AbstractCegarLoop]: === Iteration 362 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:29,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:29,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1427841308, now seen corresponding path program 60 times [2022-03-15 13:53:29,741 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:29,741 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308364670] [2022-03-15 13:53:29,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:29,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:29,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:29,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:29,847 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:29,847 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308364670] [2022-03-15 13:53:29,848 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308364670] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:29,848 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:29,848 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:29,848 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295044817] [2022-03-15 13:53:29,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:29,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:29,848 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:29,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:29,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:29,848 INFO L87 Difference]: Start difference. First operand 7690 states and 20326 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:30,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:30,452 INFO L93 Difference]: Finished difference Result 9466 states and 25008 transitions. [2022-03-15 13:53:30,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-15 13:53:30,453 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:30,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:30,465 INFO L225 Difference]: With dead ends: 9466 [2022-03-15 13:53:30,465 INFO L226 Difference]: Without dead ends: 8906 [2022-03-15 13:53:30,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 689 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=625, Invalid=2131, Unknown=0, NotChecked=0, Total=2756 [2022-03-15 13:53:30,465 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 359 mSDsluCounter, 2640 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 2855 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:30,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [359 Valid, 2855 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:30,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8906 states. [2022-03-15 13:53:30,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8906 to 7686. [2022-03-15 13:53:30,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7686 states, 7685 states have (on average 2.6434612882238127) internal successors, (20315), 7685 states have internal predecessors, (20315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:30,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20315 transitions. [2022-03-15 13:53:30,577 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20315 transitions. Word has length 109 [2022-03-15 13:53:30,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:30,577 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20315 transitions. [2022-03-15 13:53:30,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:30,577 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20315 transitions. [2022-03-15 13:53:30,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:30,586 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:30,586 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:30,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable361 [2022-03-15 13:53:30,586 INFO L402 AbstractCegarLoop]: === Iteration 363 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:30,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:30,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1618154712, now seen corresponding path program 61 times [2022-03-15 13:53:30,587 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:30,587 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066845305] [2022-03-15 13:53:30,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:30,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:30,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:30,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:30,699 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:30,699 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066845305] [2022-03-15 13:53:30,699 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066845305] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:30,699 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:30,699 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:30,699 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539024330] [2022-03-15 13:53:30,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:30,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:30,699 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:30,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:30,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:30,700 INFO L87 Difference]: Start difference. First operand 7686 states and 20315 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:31,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:31,149 INFO L93 Difference]: Finished difference Result 9212 states and 24333 transitions. [2022-03-15 13:53:31,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:53:31,150 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:31,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:31,162 INFO L225 Difference]: With dead ends: 9212 [2022-03-15 13:53:31,162 INFO L226 Difference]: Without dead ends: 8733 [2022-03-15 13:53:31,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=331, Invalid=1001, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:53:31,162 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 200 mSDsluCounter, 2679 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 2869 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:31,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 2869 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:31,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8733 states. [2022-03-15 13:53:31,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8733 to 7698. [2022-03-15 13:53:31,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.643107704300377) internal successors, (20344), 7697 states have internal predecessors, (20344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:31,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20344 transitions. [2022-03-15 13:53:31,275 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20344 transitions. Word has length 109 [2022-03-15 13:53:31,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:31,275 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20344 transitions. [2022-03-15 13:53:31,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:31,275 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20344 transitions. [2022-03-15 13:53:31,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:31,284 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:31,284 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:31,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable362 [2022-03-15 13:53:31,284 INFO L402 AbstractCegarLoop]: === Iteration 364 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:31,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:31,284 INFO L85 PathProgramCache]: Analyzing trace with hash 9368406, now seen corresponding path program 62 times [2022-03-15 13:53:31,284 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:31,284 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908578563] [2022-03-15 13:53:31,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:31,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:31,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:31,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:31,411 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:31,412 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908578563] [2022-03-15 13:53:31,412 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908578563] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:31,412 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:31,412 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:31,412 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512768285] [2022-03-15 13:53:31,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:31,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:31,412 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:31,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:31,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:31,412 INFO L87 Difference]: Start difference. First operand 7698 states and 20344 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:31,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:31,846 INFO L93 Difference]: Finished difference Result 9170 states and 24222 transitions. [2022-03-15 13:53:31,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:53:31,847 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:31,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:31,857 INFO L225 Difference]: With dead ends: 9170 [2022-03-15 13:53:31,857 INFO L226 Difference]: Without dead ends: 8690 [2022-03-15 13:53:31,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:53:31,858 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 200 mSDsluCounter, 2666 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 2867 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:31,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 2867 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:31,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8690 states. [2022-03-15 13:53:31,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8690 to 7694. [2022-03-15 13:53:31,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.643052125308722) internal successors, (20333), 7693 states have internal predecessors, (20333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:31,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20333 transitions. [2022-03-15 13:53:31,959 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20333 transitions. Word has length 109 [2022-03-15 13:53:31,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:31,959 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20333 transitions. [2022-03-15 13:53:31,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:31,959 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20333 transitions. [2022-03-15 13:53:31,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:31,968 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:31,968 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:31,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable363 [2022-03-15 13:53:31,968 INFO L402 AbstractCegarLoop]: === Iteration 365 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:31,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:31,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1111688934, now seen corresponding path program 63 times [2022-03-15 13:53:31,968 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:31,968 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743356579] [2022-03-15 13:53:31,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:31,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:31,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:32,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:32,077 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:32,077 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743356579] [2022-03-15 13:53:32,077 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743356579] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:32,077 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:32,077 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:32,077 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429985328] [2022-03-15 13:53:32,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:32,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:32,077 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:32,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:32,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:32,078 INFO L87 Difference]: Start difference. First operand 7694 states and 20333 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:32,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:32,582 INFO L93 Difference]: Finished difference Result 9338 states and 24664 transitions. [2022-03-15 13:53:32,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:53:32,582 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:32,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:32,594 INFO L225 Difference]: With dead ends: 9338 [2022-03-15 13:53:32,594 INFO L226 Difference]: Without dead ends: 8818 [2022-03-15 13:53:32,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=442, Invalid=1538, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 13:53:32,594 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 281 mSDsluCounter, 2737 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 2943 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:32,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [281 Valid, 2943 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:32,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8818 states. [2022-03-15 13:53:32,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8818 to 7690. [2022-03-15 13:53:32,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6429964884900508) internal successors, (20322), 7689 states have internal predecessors, (20322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:32,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20322 transitions. [2022-03-15 13:53:32,695 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20322 transitions. Word has length 109 [2022-03-15 13:53:32,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:32,695 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20322 transitions. [2022-03-15 13:53:32,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:32,695 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20322 transitions. [2022-03-15 13:53:32,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:32,728 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:32,728 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:32,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable364 [2022-03-15 13:53:32,728 INFO L402 AbstractCegarLoop]: === Iteration 366 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:32,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:32,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1039059210, now seen corresponding path program 64 times [2022-03-15 13:53:32,729 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:32,729 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85426849] [2022-03-15 13:53:32,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:32,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:32,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:32,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:32,840 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:32,840 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85426849] [2022-03-15 13:53:32,840 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85426849] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:32,840 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:32,840 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:32,840 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384598089] [2022-03-15 13:53:32,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:32,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:32,841 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:32,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:32,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:32,841 INFO L87 Difference]: Start difference. First operand 7690 states and 20322 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:33,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:33,374 INFO L93 Difference]: Finished difference Result 9256 states and 24425 transitions. [2022-03-15 13:53:33,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-15 13:53:33,374 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:33,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:33,387 INFO L225 Difference]: With dead ends: 9256 [2022-03-15 13:53:33,387 INFO L226 Difference]: Without dead ends: 8734 [2022-03-15 13:53:33,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=466, Invalid=1340, Unknown=0, NotChecked=0, Total=1806 [2022-03-15 13:53:33,387 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 259 mSDsluCounter, 2531 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 2725 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:33,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [259 Valid, 2725 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:33,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8734 states. [2022-03-15 13:53:33,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8734 to 7694. [2022-03-15 13:53:33,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6425321721045107) internal successors, (20329), 7693 states have internal predecessors, (20329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:33,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20329 transitions. [2022-03-15 13:53:33,508 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20329 transitions. Word has length 109 [2022-03-15 13:53:33,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:33,509 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20329 transitions. [2022-03-15 13:53:33,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:33,509 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20329 transitions. [2022-03-15 13:53:33,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:33,517 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:33,517 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:33,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable365 [2022-03-15 13:53:33,517 INFO L402 AbstractCegarLoop]: === Iteration 367 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:33,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:33,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1697992736, now seen corresponding path program 65 times [2022-03-15 13:53:33,518 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:33,518 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61378542] [2022-03-15 13:53:33,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:33,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:33,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:33,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:33,631 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:33,631 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61378542] [2022-03-15 13:53:33,631 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61378542] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:33,632 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:33,632 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:33,632 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361950066] [2022-03-15 13:53:33,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:33,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:33,632 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:33,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:33,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:33,632 INFO L87 Difference]: Start difference. First operand 7694 states and 20329 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:34,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:34,076 INFO L93 Difference]: Finished difference Result 9156 states and 24171 transitions. [2022-03-15 13:53:34,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:53:34,076 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:34,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:34,087 INFO L225 Difference]: With dead ends: 9156 [2022-03-15 13:53:34,087 INFO L226 Difference]: Without dead ends: 8677 [2022-03-15 13:53:34,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=349, Invalid=1057, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:53:34,087 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 220 mSDsluCounter, 2099 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 2304 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:34,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 2304 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:34,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8677 states. [2022-03-15 13:53:34,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8677 to 7698. [2022-03-15 13:53:34,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6420683383136288) internal successors, (20336), 7697 states have internal predecessors, (20336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:34,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20336 transitions. [2022-03-15 13:53:34,189 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20336 transitions. Word has length 109 [2022-03-15 13:53:34,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:34,189 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20336 transitions. [2022-03-15 13:53:34,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:34,189 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20336 transitions. [2022-03-15 13:53:34,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:34,197 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:34,197 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:34,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable366 [2022-03-15 13:53:34,197 INFO L402 AbstractCegarLoop]: === Iteration 368 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:34,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:34,197 INFO L85 PathProgramCache]: Analyzing trace with hash -969451442, now seen corresponding path program 66 times [2022-03-15 13:53:34,197 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:34,197 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91731703] [2022-03-15 13:53:34,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:34,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:34,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:34,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:34,305 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:34,305 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91731703] [2022-03-15 13:53:34,305 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91731703] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:34,305 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:34,305 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:34,305 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643009363] [2022-03-15 13:53:34,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:34,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:34,305 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:34,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:34,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:34,305 INFO L87 Difference]: Start difference. First operand 7698 states and 20336 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:34,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:34,711 INFO L93 Difference]: Finished difference Result 9106 states and 24038 transitions. [2022-03-15 13:53:34,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:53:34,711 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:34,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:34,723 INFO L225 Difference]: With dead ends: 9106 [2022-03-15 13:53:34,723 INFO L226 Difference]: Without dead ends: 8614 [2022-03-15 13:53:34,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=299, Invalid=1033, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:53:34,724 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 208 mSDsluCounter, 2516 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 2720 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:34,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 2720 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:34,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8614 states. [2022-03-15 13:53:34,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8614 to 7682. [2022-03-15 13:53:34,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7682 states, 7681 states have (on average 2.643405806535607) internal successors, (20304), 7681 states have internal predecessors, (20304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:34,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7682 states to 7682 states and 20304 transitions. [2022-03-15 13:53:34,839 INFO L78 Accepts]: Start accepts. Automaton has 7682 states and 20304 transitions. Word has length 109 [2022-03-15 13:53:34,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:34,839 INFO L470 AbstractCegarLoop]: Abstraction has 7682 states and 20304 transitions. [2022-03-15 13:53:34,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:34,839 INFO L276 IsEmpty]: Start isEmpty. Operand 7682 states and 20304 transitions. [2022-03-15 13:53:34,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:34,848 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:34,848 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:34,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable367 [2022-03-15 13:53:34,848 INFO L402 AbstractCegarLoop]: === Iteration 369 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:34,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:34,849 INFO L85 PathProgramCache]: Analyzing trace with hash 2065231170, now seen corresponding path program 67 times [2022-03-15 13:53:34,849 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:34,849 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411043290] [2022-03-15 13:53:34,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:34,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:34,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:34,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:34,959 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:34,959 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411043290] [2022-03-15 13:53:34,960 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411043290] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:34,960 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:34,960 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:34,960 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570421535] [2022-03-15 13:53:34,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:34,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:34,960 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:34,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:34,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:34,960 INFO L87 Difference]: Start difference. First operand 7682 states and 20304 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:35,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:35,378 INFO L93 Difference]: Finished difference Result 9048 states and 23882 transitions. [2022-03-15 13:53:35,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-15 13:53:35,378 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:35,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:35,390 INFO L225 Difference]: With dead ends: 9048 [2022-03-15 13:53:35,391 INFO L226 Difference]: Without dead ends: 8569 [2022-03-15 13:53:35,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=301, Invalid=889, Unknown=0, NotChecked=0, Total=1190 [2022-03-15 13:53:35,391 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 209 mSDsluCounter, 2521 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2709 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:35,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 2709 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:35,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8569 states. [2022-03-15 13:53:35,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8569 to 7698. [2022-03-15 13:53:35,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.643107704300377) internal successors, (20344), 7697 states have internal predecessors, (20344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:35,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20344 transitions. [2022-03-15 13:53:35,507 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20344 transitions. Word has length 109 [2022-03-15 13:53:35,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:35,507 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20344 transitions. [2022-03-15 13:53:35,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:35,507 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20344 transitions. [2022-03-15 13:53:35,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:35,517 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:35,517 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:35,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable368 [2022-03-15 13:53:35,517 INFO L402 AbstractCegarLoop]: === Iteration 370 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:35,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:35,518 INFO L85 PathProgramCache]: Analyzing trace with hash -602213008, now seen corresponding path program 68 times [2022-03-15 13:53:35,518 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:35,518 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029707207] [2022-03-15 13:53:35,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:35,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:35,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:35,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:35,626 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:35,626 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029707207] [2022-03-15 13:53:35,626 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029707207] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:35,626 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:35,626 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:35,626 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032651829] [2022-03-15 13:53:35,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:35,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:35,626 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:35,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:35,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:35,627 INFO L87 Difference]: Start difference. First operand 7698 states and 20344 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:36,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:36,052 INFO L93 Difference]: Finished difference Result 9018 states and 23804 transitions. [2022-03-15 13:53:36,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:53:36,053 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:36,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:36,065 INFO L225 Difference]: With dead ends: 9018 [2022-03-15 13:53:36,066 INFO L226 Difference]: Without dead ends: 8538 [2022-03-15 13:53:36,066 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=307, Invalid=1099, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:53:36,066 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 196 mSDsluCounter, 2684 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 2884 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:36,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 2884 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:36,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8538 states. [2022-03-15 13:53:36,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8538 to 7694. [2022-03-15 13:53:36,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.643052125308722) internal successors, (20333), 7693 states have internal predecessors, (20333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:36,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20333 transitions. [2022-03-15 13:53:36,197 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20333 transitions. Word has length 109 [2022-03-15 13:53:36,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:36,197 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20333 transitions. [2022-03-15 13:53:36,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:36,197 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20333 transitions. [2022-03-15 13:53:36,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:36,207 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:36,208 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:36,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable369 [2022-03-15 13:53:36,208 INFO L402 AbstractCegarLoop]: === Iteration 371 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:36,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:36,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1723270348, now seen corresponding path program 69 times [2022-03-15 13:53:36,208 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:36,208 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330914129] [2022-03-15 13:53:36,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:36,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:36,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:36,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:36,324 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:36,324 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330914129] [2022-03-15 13:53:36,325 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330914129] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:36,325 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:36,325 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:36,325 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570058275] [2022-03-15 13:53:36,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:36,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:36,325 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:36,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:36,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:36,325 INFO L87 Difference]: Start difference. First operand 7694 states and 20333 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:36,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:36,883 INFO L93 Difference]: Finished difference Result 9054 states and 23899 transitions. [2022-03-15 13:53:36,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:53:36,883 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:36,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:36,893 INFO L225 Difference]: With dead ends: 9054 [2022-03-15 13:53:36,894 INFO L226 Difference]: Without dead ends: 8534 [2022-03-15 13:53:36,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=441, Invalid=1539, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 13:53:36,894 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 279 mSDsluCounter, 2605 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 2815 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:36,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 2815 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:36,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8534 states. [2022-03-15 13:53:36,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8534 to 7690. [2022-03-15 13:53:36,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6429964884900508) internal successors, (20322), 7689 states have internal predecessors, (20322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:36,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20322 transitions. [2022-03-15 13:53:36,992 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20322 transitions. Word has length 109 [2022-03-15 13:53:36,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:36,993 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20322 transitions. [2022-03-15 13:53:36,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:36,993 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20322 transitions. [2022-03-15 13:53:37,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:37,001 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:37,001 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:37,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable370 [2022-03-15 13:53:37,002 INFO L402 AbstractCegarLoop]: === Iteration 372 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:37,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:37,002 INFO L85 PathProgramCache]: Analyzing trace with hash 2046561412, now seen corresponding path program 70 times [2022-03-15 13:53:37,002 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:37,002 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931828636] [2022-03-15 13:53:37,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:37,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:37,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:37,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:37,111 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:37,111 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931828636] [2022-03-15 13:53:37,111 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931828636] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:37,111 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:37,111 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:37,111 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56624605] [2022-03-15 13:53:37,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:37,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:37,112 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:37,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:37,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:37,112 INFO L87 Difference]: Start difference. First operand 7690 states and 20322 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:37,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:37,735 INFO L93 Difference]: Finished difference Result 9090 states and 23994 transitions. [2022-03-15 13:53:37,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-15 13:53:37,735 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:37,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:37,748 INFO L225 Difference]: With dead ends: 9090 [2022-03-15 13:53:37,748 INFO L226 Difference]: Without dead ends: 8530 [2022-03-15 13:53:37,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 731 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=631, Invalid=2231, Unknown=0, NotChecked=0, Total=2862 [2022-03-15 13:53:37,749 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 317 mSDsluCounter, 2850 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 3066 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:37,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [317 Valid, 3066 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:37,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8530 states. [2022-03-15 13:53:37,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8530 to 7686. [2022-03-15 13:53:37,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7686 states, 7685 states have (on average 2.6429407937540663) internal successors, (20311), 7685 states have internal predecessors, (20311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:37,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20311 transitions. [2022-03-15 13:53:37,860 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20311 transitions. Word has length 109 [2022-03-15 13:53:37,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:37,860 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20311 transitions. [2022-03-15 13:53:37,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:37,860 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20311 transitions. [2022-03-15 13:53:37,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:37,868 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:37,868 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:37,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable371 [2022-03-15 13:53:37,868 INFO L402 AbstractCegarLoop]: === Iteration 373 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:37,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:37,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1596112618, now seen corresponding path program 71 times [2022-03-15 13:53:37,869 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:37,869 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788288267] [2022-03-15 13:53:37,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:37,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:37,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:37,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:37,985 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:37,985 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788288267] [2022-03-15 13:53:37,985 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788288267] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:37,985 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:37,985 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:37,985 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535057976] [2022-03-15 13:53:37,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:37,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:37,985 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:37,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:37,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:37,986 INFO L87 Difference]: Start difference. First operand 7686 states and 20311 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:38,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:38,662 INFO L93 Difference]: Finished difference Result 9258 states and 24416 transitions. [2022-03-15 13:53:38,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-15 13:53:38,662 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:38,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:38,674 INFO L225 Difference]: With dead ends: 9258 [2022-03-15 13:53:38,674 INFO L226 Difference]: Without dead ends: 8654 [2022-03-15 13:53:38,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 931 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=805, Invalid=2617, Unknown=0, NotChecked=0, Total=3422 [2022-03-15 13:53:38,675 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 413 mSDsluCounter, 2827 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 3042 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:38,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 3042 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:38,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8654 states. [2022-03-15 13:53:38,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8654 to 7678. [2022-03-15 13:53:38,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7678 states, 7677 states have (on average 2.6433502670313924) internal successors, (20293), 7677 states have internal predecessors, (20293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:38,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7678 states to 7678 states and 20293 transitions. [2022-03-15 13:53:38,801 INFO L78 Accepts]: Start accepts. Automaton has 7678 states and 20293 transitions. Word has length 109 [2022-03-15 13:53:38,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:38,801 INFO L470 AbstractCegarLoop]: Abstraction has 7678 states and 20293 transitions. [2022-03-15 13:53:38,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:38,802 INFO L276 IsEmpty]: Start isEmpty. Operand 7678 states and 20293 transitions. [2022-03-15 13:53:38,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:38,809 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:38,809 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:38,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable372 [2022-03-15 13:53:38,810 INFO L402 AbstractCegarLoop]: === Iteration 374 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:38,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:38,810 INFO L85 PathProgramCache]: Analyzing trace with hash 33730372, now seen corresponding path program 72 times [2022-03-15 13:53:38,810 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:38,810 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883453481] [2022-03-15 13:53:38,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:38,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:38,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:38,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:38,917 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:38,917 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883453481] [2022-03-15 13:53:38,917 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883453481] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:38,917 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:38,917 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:38,917 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426319363] [2022-03-15 13:53:38,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:38,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:38,918 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:38,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:38,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:38,918 INFO L87 Difference]: Start difference. First operand 7678 states and 20293 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:39,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:39,331 INFO L93 Difference]: Finished difference Result 9208 states and 24322 transitions. [2022-03-15 13:53:39,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:53:39,331 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:39,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:39,343 INFO L225 Difference]: With dead ends: 9208 [2022-03-15 13:53:39,343 INFO L226 Difference]: Without dead ends: 8729 [2022-03-15 13:53:39,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=313, Invalid=1019, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:53:39,343 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 221 mSDsluCounter, 2534 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 2725 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:39,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 2725 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:39,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8729 states. [2022-03-15 13:53:39,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8729 to 7698. [2022-03-15 13:53:39,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.643107704300377) internal successors, (20344), 7697 states have internal predecessors, (20344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:39,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20344 transitions. [2022-03-15 13:53:39,441 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20344 transitions. Word has length 109 [2022-03-15 13:53:39,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:39,441 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20344 transitions. [2022-03-15 13:53:39,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:39,442 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20344 transitions. [2022-03-15 13:53:39,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:39,450 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:39,450 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:39,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable373 [2022-03-15 13:53:39,450 INFO L402 AbstractCegarLoop]: === Iteration 375 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:39,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:39,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1661253490, now seen corresponding path program 73 times [2022-03-15 13:53:39,450 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:39,450 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349221777] [2022-03-15 13:53:39,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:39,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:39,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:39,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:39,557 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:39,557 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349221777] [2022-03-15 13:53:39,557 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349221777] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:39,557 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:39,557 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:39,557 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295142168] [2022-03-15 13:53:39,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:39,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:39,557 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:39,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:39,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:39,557 INFO L87 Difference]: Start difference. First operand 7698 states and 20344 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:39,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:39,980 INFO L93 Difference]: Finished difference Result 9174 states and 24233 transitions. [2022-03-15 13:53:39,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:53:39,981 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:39,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:39,992 INFO L225 Difference]: With dead ends: 9174 [2022-03-15 13:53:39,992 INFO L226 Difference]: Without dead ends: 8694 [2022-03-15 13:53:39,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:53:39,992 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 212 mSDsluCounter, 2681 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 2882 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:39,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 2882 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:40,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8694 states. [2022-03-15 13:53:40,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8694 to 7694. [2022-03-15 13:53:40,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.643052125308722) internal successors, (20333), 7693 states have internal predecessors, (20333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:40,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20333 transitions. [2022-03-15 13:53:40,112 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20333 transitions. Word has length 109 [2022-03-15 13:53:40,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:40,112 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20333 transitions. [2022-03-15 13:53:40,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:40,112 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20333 transitions. [2022-03-15 13:53:40,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:40,121 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:40,121 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:40,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable374 [2022-03-15 13:53:40,122 INFO L402 AbstractCegarLoop]: === Iteration 376 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:40,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:40,122 INFO L85 PathProgramCache]: Analyzing trace with hash 540196150, now seen corresponding path program 74 times [2022-03-15 13:53:40,122 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:40,122 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314965801] [2022-03-15 13:53:40,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:40,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:40,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:40,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:40,229 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:40,229 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314965801] [2022-03-15 13:53:40,230 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314965801] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:40,230 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:40,230 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:40,230 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108939720] [2022-03-15 13:53:40,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:40,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:40,230 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:40,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:40,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:40,230 INFO L87 Difference]: Start difference. First operand 7694 states and 20333 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:40,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:40,776 INFO L93 Difference]: Finished difference Result 9210 states and 24328 transitions. [2022-03-15 13:53:40,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:53:40,776 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:40,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:40,788 INFO L225 Difference]: With dead ends: 9210 [2022-03-15 13:53:40,788 INFO L226 Difference]: Without dead ends: 8690 [2022-03-15 13:53:40,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=464, Invalid=1606, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:53:40,789 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 288 mSDsluCounter, 2602 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 2813 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:40,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [288 Valid, 2813 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:40,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8690 states. [2022-03-15 13:53:40,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8690 to 7690. [2022-03-15 13:53:40,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6429964884900508) internal successors, (20322), 7689 states have internal predecessors, (20322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:40,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20322 transitions. [2022-03-15 13:53:40,891 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20322 transitions. Word has length 109 [2022-03-15 13:53:40,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:40,891 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20322 transitions. [2022-03-15 13:53:40,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:40,891 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20322 transitions. [2022-03-15 13:53:40,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:40,901 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:40,901 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:40,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable375 [2022-03-15 13:53:40,901 INFO L402 AbstractCegarLoop]: === Iteration 377 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:40,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:40,901 INFO L85 PathProgramCache]: Analyzing trace with hash 15060614, now seen corresponding path program 75 times [2022-03-15 13:53:40,901 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:40,901 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384836091] [2022-03-15 13:53:40,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:40,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:40,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:41,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:41,012 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:41,012 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384836091] [2022-03-15 13:53:41,012 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384836091] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:41,012 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:41,012 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:41,013 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545926601] [2022-03-15 13:53:41,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:41,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:41,013 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:41,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:41,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:41,013 INFO L87 Difference]: Start difference. First operand 7690 states and 20322 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:41,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:41,613 INFO L93 Difference]: Finished difference Result 9354 states and 24696 transitions. [2022-03-15 13:53:41,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-15 13:53:41,613 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:41,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:41,624 INFO L225 Difference]: With dead ends: 9354 [2022-03-15 13:53:41,624 INFO L226 Difference]: Without dead ends: 8794 [2022-03-15 13:53:41,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 649 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=619, Invalid=2033, Unknown=0, NotChecked=0, Total=2652 [2022-03-15 13:53:41,625 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 348 mSDsluCounter, 2809 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 3021 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:41,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [348 Valid, 3021 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:41,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8794 states. [2022-03-15 13:53:41,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8794 to 7686. [2022-03-15 13:53:41,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7686 states, 7685 states have (on average 2.6429407937540663) internal successors, (20311), 7685 states have internal predecessors, (20311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:41,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20311 transitions. [2022-03-15 13:53:41,717 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20311 transitions. Word has length 109 [2022-03-15 13:53:41,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:41,717 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20311 transitions. [2022-03-15 13:53:41,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:41,717 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20311 transitions. [2022-03-15 13:53:41,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:41,725 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:41,725 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:41,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable376 [2022-03-15 13:53:41,725 INFO L402 AbstractCegarLoop]: === Iteration 378 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:41,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:41,725 INFO L85 PathProgramCache]: Analyzing trace with hash -175252790, now seen corresponding path program 76 times [2022-03-15 13:53:41,725 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:41,725 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530285469] [2022-03-15 13:53:41,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:41,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:41,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:41,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:41,830 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:41,830 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530285469] [2022-03-15 13:53:41,830 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530285469] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:41,830 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:41,830 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:41,830 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077846174] [2022-03-15 13:53:41,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:41,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:41,830 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:41,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:41,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:41,830 INFO L87 Difference]: Start difference. First operand 7686 states and 20311 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:42,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:42,260 INFO L93 Difference]: Finished difference Result 9280 states and 24516 transitions. [2022-03-15 13:53:42,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:53:42,260 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:42,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:42,272 INFO L225 Difference]: With dead ends: 9280 [2022-03-15 13:53:42,272 INFO L226 Difference]: Without dead ends: 8801 [2022-03-15 13:53:42,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=329, Invalid=1077, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:53:42,273 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 216 mSDsluCounter, 2701 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 2894 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:42,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 2894 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:42,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8801 states. [2022-03-15 13:53:42,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8801 to 7698. [2022-03-15 13:53:42,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6425880213070028) internal successors, (20340), 7697 states have internal predecessors, (20340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:42,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20340 transitions. [2022-03-15 13:53:42,373 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20340 transitions. Word has length 109 [2022-03-15 13:53:42,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:42,373 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20340 transitions. [2022-03-15 13:53:42,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:42,373 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20340 transitions. [2022-03-15 13:53:42,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:42,381 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:42,381 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:42,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable377 [2022-03-15 13:53:42,381 INFO L402 AbstractCegarLoop]: === Iteration 379 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:42,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:42,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1452270328, now seen corresponding path program 77 times [2022-03-15 13:53:42,382 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:42,382 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343360120] [2022-03-15 13:53:42,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:42,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:42,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:42,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:42,492 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:42,492 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343360120] [2022-03-15 13:53:42,492 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343360120] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:42,492 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:42,492 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:42,492 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042825546] [2022-03-15 13:53:42,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:42,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:42,492 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:42,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:42,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:42,492 INFO L87 Difference]: Start difference. First operand 7698 states and 20340 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:42,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:42,925 INFO L93 Difference]: Finished difference Result 9238 states and 24405 transitions. [2022-03-15 13:53:42,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:53:42,925 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:42,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:42,937 INFO L225 Difference]: With dead ends: 9238 [2022-03-15 13:53:42,937 INFO L226 Difference]: Without dead ends: 8758 [2022-03-15 13:53:42,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=319, Invalid=1013, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:53:42,937 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 214 mSDsluCounter, 2690 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 2894 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:42,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 2894 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:42,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8758 states. [2022-03-15 13:53:43,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8758 to 7694. [2022-03-15 13:53:43,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6425321721045107) internal successors, (20329), 7693 states have internal predecessors, (20329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:43,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20329 transitions. [2022-03-15 13:53:43,042 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20329 transitions. Word has length 109 [2022-03-15 13:53:43,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:43,042 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20329 transitions. [2022-03-15 13:53:43,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:43,042 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20329 transitions. [2022-03-15 13:53:43,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:43,051 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:43,051 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:43,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable378 [2022-03-15 13:53:43,051 INFO L402 AbstractCegarLoop]: === Iteration 380 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:43,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:43,051 INFO L85 PathProgramCache]: Analyzing trace with hash 331212988, now seen corresponding path program 78 times [2022-03-15 13:53:43,051 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:43,051 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588137637] [2022-03-15 13:53:43,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:43,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:43,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:43,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:43,160 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:43,160 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588137637] [2022-03-15 13:53:43,161 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588137637] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:43,161 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:43,161 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:43,161 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747404649] [2022-03-15 13:53:43,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:43,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:43,161 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:43,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:43,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:43,161 INFO L87 Difference]: Start difference. First operand 7694 states and 20329 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:43,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:43,682 INFO L93 Difference]: Finished difference Result 9366 states and 24737 transitions. [2022-03-15 13:53:43,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:53:43,682 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:43,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:43,694 INFO L225 Difference]: With dead ends: 9366 [2022-03-15 13:53:43,695 INFO L226 Difference]: Without dead ends: 8846 [2022-03-15 13:53:43,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=452, Invalid=1528, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 13:53:43,695 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 290 mSDsluCounter, 2756 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 2964 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:43,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 2964 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:43,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8846 states. [2022-03-15 13:53:43,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8846 to 7690. [2022-03-15 13:53:43,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6424762647938613) internal successors, (20318), 7689 states have internal predecessors, (20318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:43,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20318 transitions. [2022-03-15 13:53:43,810 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20318 transitions. Word has length 109 [2022-03-15 13:53:43,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:43,811 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20318 transitions. [2022-03-15 13:53:43,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:43,811 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20318 transitions. [2022-03-15 13:53:43,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:43,820 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:43,820 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:43,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable379 [2022-03-15 13:53:43,820 INFO L402 AbstractCegarLoop]: === Iteration 381 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:43,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:43,820 INFO L85 PathProgramCache]: Analyzing trace with hash 403842712, now seen corresponding path program 79 times [2022-03-15 13:53:43,820 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:43,820 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179389689] [2022-03-15 13:53:43,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:43,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:43,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:43,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:43,931 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:43,932 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179389689] [2022-03-15 13:53:43,932 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179389689] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:43,932 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:43,932 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:43,932 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357709960] [2022-03-15 13:53:43,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:43,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:43,932 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:43,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:43,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:43,932 INFO L87 Difference]: Start difference. First operand 7690 states and 20318 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:44,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:44,515 INFO L93 Difference]: Finished difference Result 9368 states and 24729 transitions. [2022-03-15 13:53:44,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-15 13:53:44,515 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:44,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:44,525 INFO L225 Difference]: With dead ends: 9368 [2022-03-15 13:53:44,525 INFO L226 Difference]: Without dead ends: 8846 [2022-03-15 13:53:44,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=476, Invalid=1416, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 13:53:44,526 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 280 mSDsluCounter, 2414 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 2615 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:44,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 2615 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:44,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8846 states. [2022-03-15 13:53:44,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8846 to 7694. [2022-03-15 13:53:44,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.642012218900299) internal successors, (20325), 7693 states have internal predecessors, (20325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:44,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20325 transitions. [2022-03-15 13:53:44,616 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20325 transitions. Word has length 109 [2022-03-15 13:53:44,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:44,616 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20325 transitions. [2022-03-15 13:53:44,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:44,616 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20325 transitions. [2022-03-15 13:53:44,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:44,624 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:44,624 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:44,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable380 [2022-03-15 13:53:44,624 INFO L402 AbstractCegarLoop]: === Iteration 382 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:44,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:44,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1154072638, now seen corresponding path program 80 times [2022-03-15 13:53:44,625 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:44,625 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752226645] [2022-03-15 13:53:44,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:44,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:44,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:44,734 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:44,734 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752226645] [2022-03-15 13:53:44,734 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752226645] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:44,734 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:44,734 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:44,734 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800644979] [2022-03-15 13:53:44,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:44,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:44,734 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:44,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:44,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:44,735 INFO L87 Difference]: Start difference. First operand 7694 states and 20325 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:45,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:45,164 INFO L93 Difference]: Finished difference Result 9220 states and 24343 transitions. [2022-03-15 13:53:45,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:53:45,164 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:45,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:45,175 INFO L225 Difference]: With dead ends: 9220 [2022-03-15 13:53:45,175 INFO L226 Difference]: Without dead ends: 8741 [2022-03-15 13:53:45,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=344, Invalid=1062, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:53:45,176 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 214 mSDsluCounter, 2262 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 2468 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:45,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 2468 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:45,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8741 states. [2022-03-15 13:53:45,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8741 to 7698. [2022-03-15 13:53:45,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6415486553202547) internal successors, (20332), 7697 states have internal predecessors, (20332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:45,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20332 transitions. [2022-03-15 13:53:45,277 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20332 transitions. Word has length 109 [2022-03-15 13:53:45,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:45,277 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20332 transitions. [2022-03-15 13:53:45,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:45,277 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20332 transitions. [2022-03-15 13:53:45,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:45,285 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:45,285 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:45,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable381 [2022-03-15 13:53:45,285 INFO L402 AbstractCegarLoop]: === Iteration 383 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:45,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:45,285 INFO L85 PathProgramCache]: Analyzing trace with hash 473450480, now seen corresponding path program 81 times [2022-03-15 13:53:45,285 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:45,285 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776122362] [2022-03-15 13:53:45,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:45,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:45,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:45,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:45,389 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:45,389 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776122362] [2022-03-15 13:53:45,390 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776122362] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:45,390 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:45,390 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:45,390 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169143233] [2022-03-15 13:53:45,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:45,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:45,390 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:45,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:45,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:45,390 INFO L87 Difference]: Start difference. First operand 7698 states and 20332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:45,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:45,789 INFO L93 Difference]: Finished difference Result 9138 states and 24122 transitions. [2022-03-15 13:53:45,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:53:45,789 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:45,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:45,800 INFO L225 Difference]: With dead ends: 9138 [2022-03-15 13:53:45,800 INFO L226 Difference]: Without dead ends: 8646 [2022-03-15 13:53:45,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=304, Invalid=1028, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:53:45,800 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 203 mSDsluCounter, 2673 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 2874 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:45,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 2874 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:45,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8646 states. [2022-03-15 13:53:45,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8646 to 7682. [2022-03-15 13:53:45,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7682 states, 7681 states have (on average 2.642885041010285) internal successors, (20300), 7681 states have internal predecessors, (20300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:45,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7682 states to 7682 states and 20300 transitions. [2022-03-15 13:53:45,898 INFO L78 Accepts]: Start accepts. Automaton has 7682 states and 20300 transitions. Word has length 109 [2022-03-15 13:53:45,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:45,898 INFO L470 AbstractCegarLoop]: Abstraction has 7682 states and 20300 transitions. [2022-03-15 13:53:45,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:45,899 INFO L276 IsEmpty]: Start isEmpty. Operand 7682 states and 20300 transitions. [2022-03-15 13:53:45,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:45,907 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:45,907 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:45,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable382 [2022-03-15 13:53:45,907 INFO L402 AbstractCegarLoop]: === Iteration 384 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:45,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:45,908 INFO L85 PathProgramCache]: Analyzing trace with hash -223288894, now seen corresponding path program 82 times [2022-03-15 13:53:45,908 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:45,908 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042442108] [2022-03-15 13:53:45,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:45,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:45,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:46,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:46,041 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:46,041 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042442108] [2022-03-15 13:53:46,041 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042442108] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:46,041 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:46,041 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:46,041 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663216182] [2022-03-15 13:53:46,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:46,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:46,041 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:46,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:46,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:46,041 INFO L87 Difference]: Start difference. First operand 7682 states and 20300 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:46,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:46,454 INFO L93 Difference]: Finished difference Result 9176 states and 24230 transitions. [2022-03-15 13:53:46,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:53:46,455 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:46,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:46,466 INFO L225 Difference]: With dead ends: 9176 [2022-03-15 13:53:46,466 INFO L226 Difference]: Without dead ends: 8697 [2022-03-15 13:53:46,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=321, Invalid=1011, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:53:46,467 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 224 mSDsluCounter, 2091 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 2294 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:46,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 2294 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:46,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8697 states. [2022-03-15 13:53:46,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8697 to 7698. [2022-03-15 13:53:46,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6425880213070028) internal successors, (20340), 7697 states have internal predecessors, (20340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:46,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20340 transitions. [2022-03-15 13:53:46,574 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20340 transitions. Word has length 109 [2022-03-15 13:53:46,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:46,574 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20340 transitions. [2022-03-15 13:53:46,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:46,575 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20340 transitions. [2022-03-15 13:53:46,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:46,583 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:46,583 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:46,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable383 [2022-03-15 13:53:46,583 INFO L402 AbstractCegarLoop]: === Iteration 385 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:46,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:46,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1404234224, now seen corresponding path program 83 times [2022-03-15 13:53:46,584 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:46,584 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231356291] [2022-03-15 13:53:46,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:46,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:46,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:46,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:46,714 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:46,714 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231356291] [2022-03-15 13:53:46,715 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231356291] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:46,715 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:46,715 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:46,715 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944721643] [2022-03-15 13:53:46,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:46,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:46,715 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:46,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:46,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:46,715 INFO L87 Difference]: Start difference. First operand 7698 states and 20340 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:47,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:47,149 INFO L93 Difference]: Finished difference Result 9134 states and 24119 transitions. [2022-03-15 13:53:47,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:53:47,149 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:47,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:47,161 INFO L225 Difference]: With dead ends: 9134 [2022-03-15 13:53:47,161 INFO L226 Difference]: Without dead ends: 8654 [2022-03-15 13:53:47,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=327, Invalid=1079, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:53:47,161 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 215 mSDsluCounter, 2514 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 2718 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:47,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 2718 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:47,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8654 states. [2022-03-15 13:53:47,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8654 to 7694. [2022-03-15 13:53:47,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6425321721045107) internal successors, (20329), 7693 states have internal predecessors, (20329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:47,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20329 transitions. [2022-03-15 13:53:47,264 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20329 transitions. Word has length 109 [2022-03-15 13:53:47,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:47,264 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20329 transitions. [2022-03-15 13:53:47,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:47,264 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20329 transitions. [2022-03-15 13:53:47,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:47,272 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:47,272 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:47,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable384 [2022-03-15 13:53:47,272 INFO L402 AbstractCegarLoop]: === Iteration 386 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:47,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:47,272 INFO L85 PathProgramCache]: Analyzing trace with hash 283176884, now seen corresponding path program 84 times [2022-03-15 13:53:47,272 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:47,273 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887643259] [2022-03-15 13:53:47,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:47,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:47,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:47,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:47,382 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:47,382 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887643259] [2022-03-15 13:53:47,382 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887643259] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:47,382 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:47,383 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:47,383 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065052552] [2022-03-15 13:53:47,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:47,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:47,383 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:47,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:47,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:47,383 INFO L87 Difference]: Start difference. First operand 7694 states and 20329 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:47,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:47,918 INFO L93 Difference]: Finished difference Result 9242 states and 24396 transitions. [2022-03-15 13:53:47,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-15 13:53:47,918 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:47,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:47,930 INFO L225 Difference]: With dead ends: 9242 [2022-03-15 13:53:47,930 INFO L226 Difference]: Without dead ends: 8722 [2022-03-15 13:53:47,930 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=438, Invalid=1368, Unknown=0, NotChecked=0, Total=1806 [2022-03-15 13:53:47,931 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 289 mSDsluCounter, 2569 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 2777 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:47,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 2777 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:47,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8722 states. [2022-03-15 13:53:48,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8722 to 7690. [2022-03-15 13:53:48,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6424762647938613) internal successors, (20318), 7689 states have internal predecessors, (20318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:48,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20318 transitions. [2022-03-15 13:53:48,038 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20318 transitions. Word has length 109 [2022-03-15 13:53:48,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:48,038 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20318 transitions. [2022-03-15 13:53:48,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:48,038 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20318 transitions. [2022-03-15 13:53:48,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:48,047 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:48,047 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:48,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable385 [2022-03-15 13:53:48,047 INFO L402 AbstractCegarLoop]: === Iteration 387 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:48,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:48,047 INFO L85 PathProgramCache]: Analyzing trace with hash 355806608, now seen corresponding path program 85 times [2022-03-15 13:53:48,047 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:48,047 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936287404] [2022-03-15 13:53:48,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:48,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:48,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:48,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:48,159 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:48,159 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936287404] [2022-03-15 13:53:48,160 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936287404] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:48,160 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:48,160 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:48,160 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836378296] [2022-03-15 13:53:48,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:48,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:48,160 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:48,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:48,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:48,160 INFO L87 Difference]: Start difference. First operand 7690 states and 20318 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:48,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:48,709 INFO L93 Difference]: Finished difference Result 9340 states and 24652 transitions. [2022-03-15 13:53:48,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:53:48,710 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:48,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:48,721 INFO L225 Difference]: With dead ends: 9340 [2022-03-15 13:53:48,721 INFO L226 Difference]: Without dead ends: 8818 [2022-03-15 13:53:48,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=487, Invalid=1493, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 13:53:48,721 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 302 mSDsluCounter, 2161 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 2363 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:48,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 2363 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:48,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8818 states. [2022-03-15 13:53:48,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8818 to 7694. [2022-03-15 13:53:48,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.642012218900299) internal successors, (20325), 7693 states have internal predecessors, (20325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:48,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20325 transitions. [2022-03-15 13:53:48,818 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20325 transitions. Word has length 109 [2022-03-15 13:53:48,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:48,818 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20325 transitions. [2022-03-15 13:53:48,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:48,818 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20325 transitions. [2022-03-15 13:53:48,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:48,826 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:48,826 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:48,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable386 [2022-03-15 13:53:48,826 INFO L402 AbstractCegarLoop]: === Iteration 388 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:48,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:48,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1202108742, now seen corresponding path program 86 times [2022-03-15 13:53:48,826 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:48,826 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663087406] [2022-03-15 13:53:48,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:48,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:48,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:48,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:48,938 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:48,938 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663087406] [2022-03-15 13:53:48,938 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663087406] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:48,938 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:48,938 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:48,938 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461021463] [2022-03-15 13:53:48,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:48,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:48,938 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:48,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:48,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:48,939 INFO L87 Difference]: Start difference. First operand 7694 states and 20325 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:49,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:49,361 INFO L93 Difference]: Finished difference Result 9176 states and 24222 transitions. [2022-03-15 13:53:49,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:53:49,362 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:49,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:49,372 INFO L225 Difference]: With dead ends: 9176 [2022-03-15 13:53:49,372 INFO L226 Difference]: Without dead ends: 8697 [2022-03-15 13:53:49,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=339, Invalid=1067, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:53:49,373 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 229 mSDsluCounter, 2242 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 2442 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:49,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 2442 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:49,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8697 states. [2022-03-15 13:53:49,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8697 to 7698. [2022-03-15 13:53:49,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6415486553202547) internal successors, (20332), 7697 states have internal predecessors, (20332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:49,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20332 transitions. [2022-03-15 13:53:49,468 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20332 transitions. Word has length 109 [2022-03-15 13:53:49,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:49,468 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20332 transitions. [2022-03-15 13:53:49,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:49,468 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20332 transitions. [2022-03-15 13:53:49,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:49,476 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:49,476 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:49,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable387 [2022-03-15 13:53:49,476 INFO L402 AbstractCegarLoop]: === Iteration 389 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:49,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:49,476 INFO L85 PathProgramCache]: Analyzing trace with hash 425414376, now seen corresponding path program 87 times [2022-03-15 13:53:49,476 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:49,476 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516253861] [2022-03-15 13:53:49,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:49,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:49,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:49,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:49,582 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:49,582 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516253861] [2022-03-15 13:53:49,582 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516253861] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:49,582 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:49,582 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:49,582 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665163548] [2022-03-15 13:53:49,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:49,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:49,583 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:49,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:49,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:49,583 INFO L87 Difference]: Start difference. First operand 7698 states and 20332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:50,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:50,016 INFO L93 Difference]: Finished difference Result 9110 states and 24045 transitions. [2022-03-15 13:53:50,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:53:50,016 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:50,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:50,026 INFO L225 Difference]: With dead ends: 9110 [2022-03-15 13:53:50,026 INFO L226 Difference]: Without dead ends: 8622 [2022-03-15 13:53:50,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=309, Invalid=1023, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:53:50,026 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 216 mSDsluCounter, 2640 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 2834 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:50,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 2834 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:50,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8622 states. [2022-03-15 13:53:50,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8622 to 7686. [2022-03-15 13:53:50,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7686 states, 7685 states have (on average 2.64242029928432) internal successors, (20307), 7685 states have internal predecessors, (20307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:50,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20307 transitions. [2022-03-15 13:53:50,119 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20307 transitions. Word has length 109 [2022-03-15 13:53:50,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:50,119 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20307 transitions. [2022-03-15 13:53:50,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:50,119 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20307 transitions. [2022-03-15 13:53:50,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:50,127 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:50,127 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:50,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable388 [2022-03-15 13:53:50,127 INFO L402 AbstractCegarLoop]: === Iteration 390 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:50,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:50,128 INFO L85 PathProgramCache]: Analyzing trace with hash -856929724, now seen corresponding path program 88 times [2022-03-15 13:53:50,128 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:50,128 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621584540] [2022-03-15 13:53:50,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:50,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:50,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:50,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:50,236 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:50,236 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621584540] [2022-03-15 13:53:50,236 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621584540] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:50,236 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:50,236 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:50,236 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145146722] [2022-03-15 13:53:50,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:50,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:50,237 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:50,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:50,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:50,237 INFO L87 Difference]: Start difference. First operand 7686 states and 20307 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:50,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:50,886 INFO L93 Difference]: Finished difference Result 9333 states and 24614 transitions. [2022-03-15 13:53:50,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-15 13:53:50,886 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:50,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:50,897 INFO L225 Difference]: With dead ends: 9333 [2022-03-15 13:53:50,897 INFO L226 Difference]: Without dead ends: 8768 [2022-03-15 13:53:50,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 659 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=651, Invalid=1899, Unknown=0, NotChecked=0, Total=2550 [2022-03-15 13:53:50,898 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 355 mSDsluCounter, 2586 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 2777 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:50,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [355 Valid, 2777 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:50,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8768 states. [2022-03-15 13:53:50,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8768 to 7690. [2022-03-15 13:53:50,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.641956041097672) internal successors, (20314), 7689 states have internal predecessors, (20314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:51,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20314 transitions. [2022-03-15 13:53:51,013 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20314 transitions. Word has length 109 [2022-03-15 13:53:51,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:51,013 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20314 transitions. [2022-03-15 13:53:51,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:51,013 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20314 transitions. [2022-03-15 13:53:51,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:51,023 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:51,023 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:51,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable389 [2022-03-15 13:53:51,023 INFO L402 AbstractCegarLoop]: === Iteration 391 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:51,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:51,023 INFO L85 PathProgramCache]: Analyzing trace with hash 7501338, now seen corresponding path program 89 times [2022-03-15 13:53:51,023 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:51,023 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253222089] [2022-03-15 13:53:51,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:51,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:51,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:51,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:51,139 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:51,139 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253222089] [2022-03-15 13:53:51,139 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253222089] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:51,139 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:51,139 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:51,139 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966283397] [2022-03-15 13:53:51,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:51,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:51,139 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:51,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:51,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:51,139 INFO L87 Difference]: Start difference. First operand 7690 states and 20314 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:51,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:51,703 INFO L93 Difference]: Finished difference Result 9220 states and 24318 transitions. [2022-03-15 13:53:51,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:53:51,703 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:51,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:51,714 INFO L225 Difference]: With dead ends: 9220 [2022-03-15 13:53:51,714 INFO L226 Difference]: Without dead ends: 8698 [2022-03-15 13:53:51,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=499, Invalid=1571, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:53:51,715 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 297 mSDsluCounter, 2311 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 2511 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:51,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [297 Valid, 2511 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:51,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8698 states. [2022-03-15 13:53:51,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8698 to 7694. [2022-03-15 13:53:51,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6414922656960873) internal successors, (20321), 7693 states have internal predecessors, (20321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:51,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20321 transitions. [2022-03-15 13:53:51,815 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20321 transitions. Word has length 109 [2022-03-15 13:53:51,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:51,815 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20321 transitions. [2022-03-15 13:53:51,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:51,815 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20321 transitions. [2022-03-15 13:53:51,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:51,823 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:51,823 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:51,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable390 [2022-03-15 13:53:51,823 INFO L402 AbstractCegarLoop]: === Iteration 392 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:51,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:51,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1550414012, now seen corresponding path program 90 times [2022-03-15 13:53:51,823 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:51,823 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126182682] [2022-03-15 13:53:51,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:51,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:51,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:51,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:51,936 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:51,936 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126182682] [2022-03-15 13:53:51,936 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126182682] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:51,936 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:51,936 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:51,936 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113348454] [2022-03-15 13:53:51,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:51,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:51,936 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:51,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:51,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:51,937 INFO L87 Difference]: Start difference. First operand 7694 states and 20321 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:52,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:52,371 INFO L93 Difference]: Finished difference Result 9080 states and 23954 transitions. [2022-03-15 13:53:52,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:53:52,371 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:52,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:52,383 INFO L225 Difference]: With dead ends: 9080 [2022-03-15 13:53:52,384 INFO L226 Difference]: Without dead ends: 8601 [2022-03-15 13:53:52,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=334, Invalid=1072, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:53:52,384 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 235 mSDsluCounter, 2442 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 2633 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:52,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 2633 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:52,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8601 states. [2022-03-15 13:53:52,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8601 to 7698. [2022-03-15 13:53:52,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6410289723268807) internal successors, (20328), 7697 states have internal predecessors, (20328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:52,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20328 transitions. [2022-03-15 13:53:52,486 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20328 transitions. Word has length 109 [2022-03-15 13:53:52,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:52,487 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20328 transitions. [2022-03-15 13:53:52,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:52,487 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20328 transitions. [2022-03-15 13:53:52,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:52,495 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:52,495 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:52,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable391 [2022-03-15 13:53:52,495 INFO L402 AbstractCegarLoop]: === Iteration 393 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:52,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:52,495 INFO L85 PathProgramCache]: Analyzing trace with hash 77109106, now seen corresponding path program 91 times [2022-03-15 13:53:52,495 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:52,495 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564715769] [2022-03-15 13:53:52,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:52,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:52,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:52,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:52,605 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:52,605 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564715769] [2022-03-15 13:53:52,605 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564715769] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:52,605 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:52,605 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:52,605 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527463480] [2022-03-15 13:53:52,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:52,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:52,606 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:52,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:52,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:52,606 INFO L87 Difference]: Start difference. First operand 7698 states and 20328 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:52,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:52,971 INFO L93 Difference]: Finished difference Result 8970 states and 23656 transitions. [2022-03-15 13:53:52,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:53:52,972 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:52,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:52,982 INFO L225 Difference]: With dead ends: 8970 [2022-03-15 13:53:52,983 INFO L226 Difference]: Without dead ends: 8470 [2022-03-15 13:53:52,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=290, Invalid=900, Unknown=0, NotChecked=0, Total=1190 [2022-03-15 13:53:52,983 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 213 mSDsluCounter, 2039 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2239 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:52,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 2239 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:52,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8470 states. [2022-03-15 13:53:53,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8470 to 7674. [2022-03-15 13:53:53,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7674 states, 7673 states have (on average 2.643294669620748) internal successors, (20282), 7673 states have internal predecessors, (20282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:53,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7674 states to 7674 states and 20282 transitions. [2022-03-15 13:53:53,073 INFO L78 Accepts]: Start accepts. Automaton has 7674 states and 20282 transitions. Word has length 109 [2022-03-15 13:53:53,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:53,073 INFO L470 AbstractCegarLoop]: Abstraction has 7674 states and 20282 transitions. [2022-03-15 13:53:53,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:53,074 INFO L276 IsEmpty]: Start isEmpty. Operand 7674 states and 20282 transitions. [2022-03-15 13:53:53,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:53,081 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:53,081 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:53,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable392 [2022-03-15 13:53:53,081 INFO L402 AbstractCegarLoop]: === Iteration 394 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:53,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:53,081 INFO L85 PathProgramCache]: Analyzing trace with hash 882893914, now seen corresponding path program 92 times [2022-03-15 13:53:53,081 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:53,081 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918259793] [2022-03-15 13:53:53,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:53,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:53,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:53,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:53,190 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:53,190 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918259793] [2022-03-15 13:53:53,190 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918259793] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:53,190 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:53,190 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:53,190 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074636738] [2022-03-15 13:53:53,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:53,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:53,190 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:53,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:53,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:53,191 INFO L87 Difference]: Start difference. First operand 7674 states and 20282 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:53,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:53,616 INFO L93 Difference]: Finished difference Result 9008 states and 23772 transitions. [2022-03-15 13:53:53,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:53:53,617 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:53,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:53,629 INFO L225 Difference]: With dead ends: 9008 [2022-03-15 13:53:53,629 INFO L226 Difference]: Without dead ends: 8529 [2022-03-15 13:53:53,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=306, Invalid=954, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:53:53,630 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 207 mSDsluCounter, 2076 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 2274 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:53,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 2274 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:53,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8529 states. [2022-03-15 13:53:53,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8529 to 7698. [2022-03-15 13:53:53,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.643107704300377) internal successors, (20344), 7697 states have internal predecessors, (20344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:53,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20344 transitions. [2022-03-15 13:53:53,728 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20344 transitions. Word has length 109 [2022-03-15 13:53:53,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:53,728 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20344 transitions. [2022-03-15 13:53:53,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:53,728 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20344 transitions. [2022-03-15 13:53:53,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:53,737 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:53,737 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:53,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable393 [2022-03-15 13:53:53,737 INFO L402 AbstractCegarLoop]: === Iteration 395 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:53,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:53,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1784550264, now seen corresponding path program 93 times [2022-03-15 13:53:53,737 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:53,738 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760422648] [2022-03-15 13:53:53,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:53,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:53,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:53,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:53,844 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:53,844 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760422648] [2022-03-15 13:53:53,844 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760422648] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:53,844 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:53,844 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:53,845 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185887807] [2022-03-15 13:53:53,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:53,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:53,845 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:53,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:53,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:53,845 INFO L87 Difference]: Start difference. First operand 7698 states and 20344 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:54,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:54,290 INFO L93 Difference]: Finished difference Result 8974 states and 23683 transitions. [2022-03-15 13:53:54,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:53:54,291 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:54,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:54,302 INFO L225 Difference]: With dead ends: 8974 [2022-03-15 13:53:54,302 INFO L226 Difference]: Without dead ends: 8494 [2022-03-15 13:53:54,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=323, Invalid=1083, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:53:54,302 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 200 mSDsluCounter, 2651 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 2849 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:54,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 2849 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:54,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8494 states. [2022-03-15 13:53:54,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8494 to 7694. [2022-03-15 13:53:54,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.643052125308722) internal successors, (20333), 7693 states have internal predecessors, (20333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:54,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20333 transitions. [2022-03-15 13:53:54,401 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20333 transitions. Word has length 109 [2022-03-15 13:53:54,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:54,401 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20333 transitions. [2022-03-15 13:53:54,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:54,401 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20333 transitions. [2022-03-15 13:53:54,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:54,409 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:54,410 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:54,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable394 [2022-03-15 13:53:54,410 INFO L402 AbstractCegarLoop]: === Iteration 396 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:54,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:54,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1389359692, now seen corresponding path program 94 times [2022-03-15 13:53:54,410 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:54,410 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298229470] [2022-03-15 13:53:54,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:54,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:54,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:54,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:54,518 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:54,518 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298229470] [2022-03-15 13:53:54,518 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298229470] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:54,518 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:54,519 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:54,519 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395840148] [2022-03-15 13:53:54,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:54,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:54,519 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:54,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:54,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:54,519 INFO L87 Difference]: Start difference. First operand 7694 states and 20333 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:55,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:55,028 INFO L93 Difference]: Finished difference Result 9010 states and 23778 transitions. [2022-03-15 13:53:55,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:53:55,029 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:55,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:55,039 INFO L225 Difference]: With dead ends: 9010 [2022-03-15 13:53:55,040 INFO L226 Difference]: Without dead ends: 8490 [2022-03-15 13:53:55,040 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=475, Invalid=1595, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:53:55,040 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 275 mSDsluCounter, 2406 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 2616 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:55,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 2616 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:55,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8490 states. [2022-03-15 13:53:55,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8490 to 7690. [2022-03-15 13:53:55,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6429964884900508) internal successors, (20322), 7689 states have internal predecessors, (20322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:55,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20322 transitions. [2022-03-15 13:53:55,144 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20322 transitions. Word has length 109 [2022-03-15 13:53:55,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:55,144 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20322 transitions. [2022-03-15 13:53:55,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:55,144 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20322 transitions. [2022-03-15 13:53:55,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:55,152 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:55,152 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:55,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable395 [2022-03-15 13:53:55,152 INFO L402 AbstractCegarLoop]: === Iteration 397 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:55,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:55,152 INFO L85 PathProgramCache]: Analyzing trace with hash 864224156, now seen corresponding path program 95 times [2022-03-15 13:53:55,152 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:55,153 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233767341] [2022-03-15 13:53:55,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:55,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:55,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:55,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:55,258 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:55,258 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233767341] [2022-03-15 13:53:55,258 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233767341] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:55,258 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:55,258 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:55,258 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492889103] [2022-03-15 13:53:55,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:55,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:55,258 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:55,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:55,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:55,259 INFO L87 Difference]: Start difference. First operand 7690 states and 20322 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:55,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:55,838 INFO L93 Difference]: Finished difference Result 9126 states and 24069 transitions. [2022-03-15 13:53:55,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-15 13:53:55,838 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:55,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:55,848 INFO L225 Difference]: With dead ends: 9126 [2022-03-15 13:53:55,848 INFO L226 Difference]: Without dead ends: 8566 [2022-03-15 13:53:55,848 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=614, Invalid=1936, Unknown=0, NotChecked=0, Total=2550 [2022-03-15 13:53:55,849 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 345 mSDsluCounter, 2427 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 2640 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:55,849 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [345 Valid, 2640 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:55,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8566 states. [2022-03-15 13:53:55,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8566 to 7686. [2022-03-15 13:53:55,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7686 states, 7685 states have (on average 2.6429407937540663) internal successors, (20311), 7685 states have internal predecessors, (20311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:55,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20311 transitions. [2022-03-15 13:53:55,948 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20311 transitions. Word has length 109 [2022-03-15 13:53:55,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:55,948 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20311 transitions. [2022-03-15 13:53:55,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:55,948 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20311 transitions. [2022-03-15 13:53:55,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:55,957 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:55,957 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:55,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable396 [2022-03-15 13:53:55,957 INFO L402 AbstractCegarLoop]: === Iteration 398 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:55,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:55,957 INFO L85 PathProgramCache]: Analyzing trace with hash 673910752, now seen corresponding path program 96 times [2022-03-15 13:53:55,957 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:55,957 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942501574] [2022-03-15 13:53:55,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:55,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:55,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:56,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:56,065 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:56,065 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942501574] [2022-03-15 13:53:56,065 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942501574] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:56,065 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:56,065 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:56,065 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212649549] [2022-03-15 13:53:56,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:56,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:56,065 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:56,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:56,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:56,066 INFO L87 Difference]: Start difference. First operand 7686 states and 20311 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:56,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:56,482 INFO L93 Difference]: Finished difference Result 9076 states and 23955 transitions. [2022-03-15 13:53:56,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:53:56,482 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:56,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:56,493 INFO L225 Difference]: With dead ends: 9076 [2022-03-15 13:53:56,494 INFO L226 Difference]: Without dead ends: 8597 [2022-03-15 13:53:56,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=322, Invalid=1010, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:53:56,494 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 235 mSDsluCounter, 2278 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 2469 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:56,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 2469 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:56,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8597 states. [2022-03-15 13:53:56,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8597 to 7698. [2022-03-15 13:53:56,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6425880213070028) internal successors, (20340), 7697 states have internal predecessors, (20340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:56,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20340 transitions. [2022-03-15 13:53:56,592 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20340 transitions. Word has length 109 [2022-03-15 13:53:56,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:56,592 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20340 transitions. [2022-03-15 13:53:56,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:56,592 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20340 transitions. [2022-03-15 13:53:56,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:56,600 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:56,600 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:56,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable397 [2022-03-15 13:53:56,600 INFO L402 AbstractCegarLoop]: === Iteration 399 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:56,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:56,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1993533426, now seen corresponding path program 97 times [2022-03-15 13:53:56,600 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:56,601 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527648427] [2022-03-15 13:53:56,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:56,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:56,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:56,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:56,701 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:56,701 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527648427] [2022-03-15 13:53:56,701 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527648427] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:56,701 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:56,701 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:56,701 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203713312] [2022-03-15 13:53:56,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:56,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:56,702 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:56,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:56,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:56,702 INFO L87 Difference]: Start difference. First operand 7698 states and 20340 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:57,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:57,107 INFO L93 Difference]: Finished difference Result 9034 states and 23844 transitions. [2022-03-15 13:53:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:53:57,108 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:57,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:57,119 INFO L225 Difference]: With dead ends: 9034 [2022-03-15 13:53:57,119 INFO L226 Difference]: Without dead ends: 8554 [2022-03-15 13:53:57,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=328, Invalid=1078, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:53:57,120 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 233 mSDsluCounter, 2310 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 2509 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:57,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 2509 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:57,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8554 states. [2022-03-15 13:53:57,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8554 to 7694. [2022-03-15 13:53:57,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6425321721045107) internal successors, (20329), 7693 states have internal predecessors, (20329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:57,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20329 transitions. [2022-03-15 13:53:57,219 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20329 transitions. Word has length 109 [2022-03-15 13:53:57,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:57,219 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20329 transitions. [2022-03-15 13:53:57,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:57,219 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20329 transitions. [2022-03-15 13:53:57,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:57,227 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:57,227 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:57,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable398 [2022-03-15 13:53:57,227 INFO L402 AbstractCegarLoop]: === Iteration 400 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:57,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:57,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1180376530, now seen corresponding path program 98 times [2022-03-15 13:53:57,228 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:57,228 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895901877] [2022-03-15 13:53:57,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:57,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:57,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:57,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:57,330 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:57,330 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895901877] [2022-03-15 13:53:57,330 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895901877] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:57,330 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:57,330 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:57,330 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108191229] [2022-03-15 13:53:57,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:57,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:57,330 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:57,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:57,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:57,331 INFO L87 Difference]: Start difference. First operand 7694 states and 20329 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:57,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:57,820 INFO L93 Difference]: Finished difference Result 9162 states and 24176 transitions. [2022-03-15 13:53:57,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:53:57,821 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:57,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:57,831 INFO L225 Difference]: With dead ends: 9162 [2022-03-15 13:53:57,832 INFO L226 Difference]: Without dead ends: 8642 [2022-03-15 13:53:57,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=463, Invalid=1517, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 13:53:57,832 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 301 mSDsluCounter, 2519 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 2719 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:57,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 2719 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:57,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8642 states. [2022-03-15 13:53:57,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8642 to 7690. [2022-03-15 13:53:57,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6424762647938613) internal successors, (20318), 7689 states have internal predecessors, (20318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:57,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20318 transitions. [2022-03-15 13:53:57,922 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20318 transitions. Word has length 109 [2022-03-15 13:53:57,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:57,923 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20318 transitions. [2022-03-15 13:53:57,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:57,923 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20318 transitions. [2022-03-15 13:53:57,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:57,930 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:57,930 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:57,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable399 [2022-03-15 13:53:57,930 INFO L402 AbstractCegarLoop]: === Iteration 401 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:57,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:57,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1253006254, now seen corresponding path program 99 times [2022-03-15 13:53:57,931 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:57,931 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791415282] [2022-03-15 13:53:57,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:57,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:57,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:58,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:58,038 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:58,038 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791415282] [2022-03-15 13:53:58,038 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791415282] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:58,038 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:58,038 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:58,038 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930143151] [2022-03-15 13:53:58,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:58,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:58,039 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:58,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:58,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:58,039 INFO L87 Difference]: Start difference. First operand 7690 states and 20318 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:58,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:58,561 INFO L93 Difference]: Finished difference Result 9164 states and 24168 transitions. [2022-03-15 13:53:58,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-15 13:53:58,562 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:58,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:58,572 INFO L225 Difference]: With dead ends: 9164 [2022-03-15 13:53:58,572 INFO L226 Difference]: Without dead ends: 8642 [2022-03-15 13:53:58,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=467, Invalid=1425, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 13:53:58,573 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 282 mSDsluCounter, 2286 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:58,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 2482 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:58,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8642 states. [2022-03-15 13:53:58,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8642 to 7694. [2022-03-15 13:53:58,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.642012218900299) internal successors, (20325), 7693 states have internal predecessors, (20325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:58,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20325 transitions. [2022-03-15 13:53:58,664 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20325 transitions. Word has length 109 [2022-03-15 13:53:58,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:58,664 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20325 transitions. [2022-03-15 13:53:58,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:58,665 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20325 transitions. [2022-03-15 13:53:58,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:58,672 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:58,672 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:58,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable400 [2022-03-15 13:53:58,672 INFO L402 AbstractCegarLoop]: === Iteration 402 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:58,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:58,673 INFO L85 PathProgramCache]: Analyzing trace with hash -304909096, now seen corresponding path program 100 times [2022-03-15 13:53:58,673 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:58,673 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723740286] [2022-03-15 13:53:58,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:58,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:58,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:58,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:58,779 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:58,779 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723740286] [2022-03-15 13:53:58,779 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723740286] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:58,779 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:58,779 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:58,779 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085247118] [2022-03-15 13:53:58,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:58,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:58,779 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:58,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:58,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:58,779 INFO L87 Difference]: Start difference. First operand 7694 states and 20325 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:59,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:59,206 INFO L93 Difference]: Finished difference Result 9016 states and 23782 transitions. [2022-03-15 13:53:59,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:53:59,207 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:59,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:59,217 INFO L225 Difference]: With dead ends: 9016 [2022-03-15 13:53:59,217 INFO L226 Difference]: Without dead ends: 8537 [2022-03-15 13:53:59,217 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=340, Invalid=1066, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:53:59,217 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 229 mSDsluCounter, 2134 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 2330 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:59,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 2330 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:59,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8537 states. [2022-03-15 13:53:59,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8537 to 7698. [2022-03-15 13:53:59,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6415486553202547) internal successors, (20332), 7697 states have internal predecessors, (20332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:59,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20332 transitions. [2022-03-15 13:53:59,308 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20332 transitions. Word has length 109 [2022-03-15 13:53:59,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:59,308 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20332 transitions. [2022-03-15 13:53:59,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:59,309 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20332 transitions. [2022-03-15 13:53:59,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:59,316 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:59,317 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:59,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable401 [2022-03-15 13:53:59,317 INFO L402 AbstractCegarLoop]: === Iteration 403 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:59,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:59,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1322614022, now seen corresponding path program 101 times [2022-03-15 13:53:59,317 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:59,317 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159604342] [2022-03-15 13:53:59,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:59,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:59,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:53:59,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:53:59,421 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:53:59,421 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159604342] [2022-03-15 13:53:59,421 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159604342] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:53:59,421 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:53:59,421 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:53:59,421 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349188568] [2022-03-15 13:53:59,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:53:59,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:53:59,421 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:53:59,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:53:59,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:53:59,422 INFO L87 Difference]: Start difference. First operand 7698 states and 20332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:59,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:53:59,817 INFO L93 Difference]: Finished difference Result 8934 states and 23561 transitions. [2022-03-15 13:53:59,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:53:59,817 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:53:59,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:53:59,829 INFO L225 Difference]: With dead ends: 8934 [2022-03-15 13:53:59,829 INFO L226 Difference]: Without dead ends: 8442 [2022-03-15 13:53:59,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=310, Invalid=1022, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:53:59,830 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 211 mSDsluCounter, 2291 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2487 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:53:59,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 2487 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:53:59,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8442 states. [2022-03-15 13:53:59,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8442 to 7682. [2022-03-15 13:53:59,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7682 states, 7681 states have (on average 2.642885041010285) internal successors, (20300), 7681 states have internal predecessors, (20300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:59,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7682 states to 7682 states and 20300 transitions. [2022-03-15 13:53:59,934 INFO L78 Accepts]: Start accepts. Automaton has 7682 states and 20300 transitions. Word has length 109 [2022-03-15 13:53:59,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:53:59,934 INFO L470 AbstractCegarLoop]: Abstraction has 7682 states and 20300 transitions. [2022-03-15 13:53:59,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:53:59,934 INFO L276 IsEmpty]: Start isEmpty. Operand 7682 states and 20300 transitions. [2022-03-15 13:53:59,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:53:59,942 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:53:59,942 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:53:59,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable402 [2022-03-15 13:53:59,942 INFO L402 AbstractCegarLoop]: === Iteration 404 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:53:59,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:53:59,943 INFO L85 PathProgramCache]: Analyzing trace with hash 625874648, now seen corresponding path program 102 times [2022-03-15 13:53:59,943 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:53:59,943 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494346220] [2022-03-15 13:53:59,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:53:59,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:53:59,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:00,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:00,053 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:00,053 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494346220] [2022-03-15 13:54:00,053 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494346220] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:00,053 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:00,053 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:00,053 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526856766] [2022-03-15 13:54:00,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:00,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:00,053 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:00,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:00,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:00,054 INFO L87 Difference]: Start difference. First operand 7682 states and 20300 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:00,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:00,460 INFO L93 Difference]: Finished difference Result 9112 states and 24054 transitions. [2022-03-15 13:54:00,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:54:00,460 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:00,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:00,470 INFO L225 Difference]: With dead ends: 9112 [2022-03-15 13:54:00,471 INFO L226 Difference]: Without dead ends: 8633 [2022-03-15 13:54:00,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=1015, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:54:00,471 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 246 mSDsluCounter, 1905 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 2101 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:00,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 2101 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:00,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8633 states. [2022-03-15 13:54:00,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8633 to 7698. [2022-03-15 13:54:00,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6425880213070028) internal successors, (20340), 7697 states have internal predecessors, (20340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:00,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20340 transitions. [2022-03-15 13:54:00,566 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20340 transitions. Word has length 109 [2022-03-15 13:54:00,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:00,566 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20340 transitions. [2022-03-15 13:54:00,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:00,566 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20340 transitions. [2022-03-15 13:54:00,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:00,574 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:00,574 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:00,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable403 [2022-03-15 13:54:00,574 INFO L402 AbstractCegarLoop]: === Iteration 405 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:00,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:00,575 INFO L85 PathProgramCache]: Analyzing trace with hash -2041569530, now seen corresponding path program 103 times [2022-03-15 13:54:00,575 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:00,575 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270275781] [2022-03-15 13:54:00,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:00,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:00,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:00,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:00,683 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:00,683 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270275781] [2022-03-15 13:54:00,683 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270275781] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:00,683 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:00,683 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:00,683 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508897429] [2022-03-15 13:54:00,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:00,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:00,684 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:00,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:00,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:00,684 INFO L87 Difference]: Start difference. First operand 7698 states and 20340 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:01,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:01,116 INFO L93 Difference]: Finished difference Result 9070 states and 23943 transitions. [2022-03-15 13:54:01,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:54:01,116 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:01,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:01,126 INFO L225 Difference]: With dead ends: 9070 [2022-03-15 13:54:01,126 INFO L226 Difference]: Without dead ends: 8590 [2022-03-15 13:54:01,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=330, Invalid=1002, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:54:01,126 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 231 mSDsluCounter, 1875 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 2080 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:01,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 2080 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:01,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8590 states. [2022-03-15 13:54:01,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8590 to 7694. [2022-03-15 13:54:01,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6425321721045107) internal successors, (20329), 7693 states have internal predecessors, (20329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:01,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20329 transitions. [2022-03-15 13:54:01,216 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20329 transitions. Word has length 109 [2022-03-15 13:54:01,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:01,216 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20329 transitions. [2022-03-15 13:54:01,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:01,217 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20329 transitions. [2022-03-15 13:54:01,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:01,224 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:01,224 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:01,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable404 [2022-03-15 13:54:01,224 INFO L402 AbstractCegarLoop]: === Iteration 406 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:01,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:01,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1132340426, now seen corresponding path program 104 times [2022-03-15 13:54:01,225 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:01,225 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519233918] [2022-03-15 13:54:01,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:01,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:01,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:01,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:01,326 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:01,326 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519233918] [2022-03-15 13:54:01,326 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519233918] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:01,326 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:01,326 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:01,326 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234325462] [2022-03-15 13:54:01,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:01,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:01,327 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:01,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:01,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:01,327 INFO L87 Difference]: Start difference. First operand 7694 states and 20329 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:01,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:01,806 INFO L93 Difference]: Finished difference Result 9178 states and 24220 transitions. [2022-03-15 13:54:01,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-15 13:54:01,806 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:01,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:01,817 INFO L225 Difference]: With dead ends: 9178 [2022-03-15 13:54:01,817 INFO L226 Difference]: Without dead ends: 8658 [2022-03-15 13:54:01,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=452, Invalid=1440, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 13:54:01,817 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 300 mSDsluCounter, 2505 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 2703 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:01,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 2703 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:01,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8658 states. [2022-03-15 13:54:01,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8658 to 7690. [2022-03-15 13:54:01,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6424762647938613) internal successors, (20318), 7689 states have internal predecessors, (20318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:01,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20318 transitions. [2022-03-15 13:54:01,908 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20318 transitions. Word has length 109 [2022-03-15 13:54:01,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:01,908 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20318 transitions. [2022-03-15 13:54:01,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:01,909 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20318 transitions. [2022-03-15 13:54:01,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:01,916 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:01,916 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:01,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable405 [2022-03-15 13:54:01,917 INFO L402 AbstractCegarLoop]: === Iteration 407 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:01,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:01,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1204970150, now seen corresponding path program 105 times [2022-03-15 13:54:01,917 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:01,917 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218764743] [2022-03-15 13:54:01,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:01,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:01,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:02,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:02,033 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:02,033 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218764743] [2022-03-15 13:54:02,033 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218764743] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:02,033 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:02,033 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:02,033 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58524809] [2022-03-15 13:54:02,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:02,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:02,033 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:02,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:02,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:02,033 INFO L87 Difference]: Start difference. First operand 7690 states and 20318 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:02,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:02,555 INFO L93 Difference]: Finished difference Result 9276 states and 24476 transitions. [2022-03-15 13:54:02,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:54:02,556 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:02,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:02,566 INFO L225 Difference]: With dead ends: 9276 [2022-03-15 13:54:02,566 INFO L226 Difference]: Without dead ends: 8754 [2022-03-15 13:54:02,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=478, Invalid=1502, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 13:54:02,567 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 293 mSDsluCounter, 2292 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 2489 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:02,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 2489 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:02,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8754 states. [2022-03-15 13:54:02,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8754 to 7694. [2022-03-15 13:54:02,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.642012218900299) internal successors, (20325), 7693 states have internal predecessors, (20325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:02,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20325 transitions. [2022-03-15 13:54:02,662 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20325 transitions. Word has length 109 [2022-03-15 13:54:02,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:02,662 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20325 transitions. [2022-03-15 13:54:02,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:02,662 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20325 transitions. [2022-03-15 13:54:02,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:02,670 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:02,670 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:02,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable406 [2022-03-15 13:54:02,670 INFO L402 AbstractCegarLoop]: === Iteration 408 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:02,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:02,670 INFO L85 PathProgramCache]: Analyzing trace with hash -352945200, now seen corresponding path program 106 times [2022-03-15 13:54:02,670 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:02,670 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637751364] [2022-03-15 13:54:02,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:02,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:02,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:02,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:02,776 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:02,776 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637751364] [2022-03-15 13:54:02,776 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637751364] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:02,776 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:02,777 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:02,777 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944545135] [2022-03-15 13:54:02,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:02,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:02,777 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:02,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:02,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:02,777 INFO L87 Difference]: Start difference. First operand 7694 states and 20325 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:03,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:03,209 INFO L93 Difference]: Finished difference Result 9112 states and 24046 transitions. [2022-03-15 13:54:03,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:54:03,209 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:03,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:03,221 INFO L225 Difference]: With dead ends: 9112 [2022-03-15 13:54:03,221 INFO L226 Difference]: Without dead ends: 8633 [2022-03-15 13:54:03,221 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=335, Invalid=1071, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:54:03,221 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 229 mSDsluCounter, 2651 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 2838 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:03,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 2838 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:03,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8633 states. [2022-03-15 13:54:03,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8633 to 7698. [2022-03-15 13:54:03,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6415486553202547) internal successors, (20332), 7697 states have internal predecessors, (20332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:03,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20332 transitions. [2022-03-15 13:54:03,324 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20332 transitions. Word has length 109 [2022-03-15 13:54:03,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:03,324 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20332 transitions. [2022-03-15 13:54:03,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:03,324 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20332 transitions. [2022-03-15 13:54:03,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:03,333 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:03,333 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:03,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable407 [2022-03-15 13:54:03,333 INFO L402 AbstractCegarLoop]: === Iteration 409 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:03,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:03,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1274577918, now seen corresponding path program 107 times [2022-03-15 13:54:03,333 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:03,333 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644397909] [2022-03-15 13:54:03,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:03,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:03,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:03,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:03,451 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:03,451 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644397909] [2022-03-15 13:54:03,452 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644397909] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:03,452 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:03,452 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:03,452 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152434000] [2022-03-15 13:54:03,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:03,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:03,452 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:03,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:03,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:03,452 INFO L87 Difference]: Start difference. First operand 7698 states and 20332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:03,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:03,863 INFO L93 Difference]: Finished difference Result 9046 states and 23869 transitions. [2022-03-15 13:54:03,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:54:03,864 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:03,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:03,875 INFO L225 Difference]: With dead ends: 9046 [2022-03-15 13:54:03,875 INFO L226 Difference]: Without dead ends: 8558 [2022-03-15 13:54:03,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=312, Invalid=948, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:54:03,876 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 211 mSDsluCounter, 2031 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2232 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:03,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 2232 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:03,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8558 states. [2022-03-15 13:54:03,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8558 to 7686. [2022-03-15 13:54:03,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7686 states, 7685 states have (on average 2.64242029928432) internal successors, (20307), 7685 states have internal predecessors, (20307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:03,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20307 transitions. [2022-03-15 13:54:03,980 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20307 transitions. Word has length 109 [2022-03-15 13:54:03,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:03,980 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20307 transitions. [2022-03-15 13:54:03,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:03,980 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20307 transitions. [2022-03-15 13:54:03,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:03,988 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:03,988 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:03,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable408 [2022-03-15 13:54:03,988 INFO L402 AbstractCegarLoop]: === Iteration 410 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:03,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:03,989 INFO L85 PathProgramCache]: Analyzing trace with hash -7766182, now seen corresponding path program 108 times [2022-03-15 13:54:03,989 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:03,989 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149920183] [2022-03-15 13:54:03,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:03,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:04,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:04,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:04,103 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:04,103 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149920183] [2022-03-15 13:54:04,103 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149920183] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:04,103 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:04,103 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:04,103 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146648364] [2022-03-15 13:54:04,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:04,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:04,104 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:04,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:04,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:04,104 INFO L87 Difference]: Start difference. First operand 7686 states and 20307 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:04,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:04,746 INFO L93 Difference]: Finished difference Result 9297 states and 24515 transitions. [2022-03-15 13:54:04,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-15 13:54:04,746 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:04,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:04,757 INFO L225 Difference]: With dead ends: 9297 [2022-03-15 13:54:04,757 INFO L226 Difference]: Without dead ends: 8732 [2022-03-15 13:54:04,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 711 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=658, Invalid=1994, Unknown=0, NotChecked=0, Total=2652 [2022-03-15 13:54:04,758 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 362 mSDsluCounter, 2042 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 2243 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:04,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 2243 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:04,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8732 states. [2022-03-15 13:54:04,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8732 to 7690. [2022-03-15 13:54:04,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.641956041097672) internal successors, (20314), 7689 states have internal predecessors, (20314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:04,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20314 transitions. [2022-03-15 13:54:04,858 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20314 transitions. Word has length 109 [2022-03-15 13:54:04,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:04,858 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20314 transitions. [2022-03-15 13:54:04,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:04,858 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20314 transitions. [2022-03-15 13:54:04,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:04,866 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:04,866 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:04,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable409 [2022-03-15 13:54:04,866 INFO L402 AbstractCegarLoop]: === Iteration 411 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:04,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:04,867 INFO L85 PathProgramCache]: Analyzing trace with hash 856664880, now seen corresponding path program 109 times [2022-03-15 13:54:04,867 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:04,867 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896040792] [2022-03-15 13:54:04,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:04,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:04,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:04,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:04,971 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:04,971 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896040792] [2022-03-15 13:54:04,971 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896040792] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:04,971 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:04,971 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:04,971 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939851045] [2022-03-15 13:54:04,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:04,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:04,971 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:04,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:04,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:04,972 INFO L87 Difference]: Start difference. First operand 7690 states and 20314 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:05,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:05,531 INFO L93 Difference]: Finished difference Result 9180 states and 24208 transitions. [2022-03-15 13:54:05,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:54:05,531 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:05,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:05,544 INFO L225 Difference]: With dead ends: 9180 [2022-03-15 13:54:05,544 INFO L226 Difference]: Without dead ends: 8658 [2022-03-15 13:54:05,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=490, Invalid=1580, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:54:05,544 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 299 mSDsluCounter, 2214 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 2409 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:05,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [299 Valid, 2409 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:05,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8658 states. [2022-03-15 13:54:05,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8658 to 7694. [2022-03-15 13:54:05,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6414922656960873) internal successors, (20321), 7693 states have internal predecessors, (20321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:05,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20321 transitions. [2022-03-15 13:54:05,655 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20321 transitions. Word has length 109 [2022-03-15 13:54:05,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:05,655 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20321 transitions. [2022-03-15 13:54:05,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:05,655 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20321 transitions. [2022-03-15 13:54:05,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:05,663 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:05,663 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:05,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable410 [2022-03-15 13:54:05,664 INFO L402 AbstractCegarLoop]: === Iteration 412 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:05,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:05,664 INFO L85 PathProgramCache]: Analyzing trace with hash -701250470, now seen corresponding path program 110 times [2022-03-15 13:54:05,664 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:05,664 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077627844] [2022-03-15 13:54:05,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:05,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:05,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:05,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:05,774 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:05,774 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077627844] [2022-03-15 13:54:05,774 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077627844] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:05,774 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:05,774 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:05,774 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9282074] [2022-03-15 13:54:05,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:05,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:05,775 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:05,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:05,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:05,775 INFO L87 Difference]: Start difference. First operand 7694 states and 20321 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:06,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:06,232 INFO L93 Difference]: Finished difference Result 9032 states and 23822 transitions. [2022-03-15 13:54:06,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:54:06,233 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:06,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:06,244 INFO L225 Difference]: With dead ends: 9032 [2022-03-15 13:54:06,244 INFO L226 Difference]: Without dead ends: 8553 [2022-03-15 13:54:06,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=330, Invalid=1076, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:54:06,245 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 226 mSDsluCounter, 2057 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 2252 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:06,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 2252 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:06,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8553 states. [2022-03-15 13:54:06,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8553 to 7698. [2022-03-15 13:54:06,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6410289723268807) internal successors, (20328), 7697 states have internal predecessors, (20328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:06,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20328 transitions. [2022-03-15 13:54:06,344 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20328 transitions. Word has length 109 [2022-03-15 13:54:06,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:06,344 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20328 transitions. [2022-03-15 13:54:06,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:06,344 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20328 transitions. [2022-03-15 13:54:06,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:06,352 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:06,352 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:06,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable411 [2022-03-15 13:54:06,352 INFO L402 AbstractCegarLoop]: === Iteration 413 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:06,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:06,352 INFO L85 PathProgramCache]: Analyzing trace with hash 926272648, now seen corresponding path program 111 times [2022-03-15 13:54:06,352 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:06,353 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160647023] [2022-03-15 13:54:06,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:06,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:06,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:06,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:06,495 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:06,495 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160647023] [2022-03-15 13:54:06,495 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160647023] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:06,495 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:06,495 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:06,495 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124405633] [2022-03-15 13:54:06,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:06,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:06,496 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:06,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:06,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:06,496 INFO L87 Difference]: Start difference. First operand 7698 states and 20328 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:06,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:06,873 INFO L93 Difference]: Finished difference Result 8934 states and 23557 transitions. [2022-03-15 13:54:06,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:54:06,873 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:06,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:06,884 INFO L225 Difference]: With dead ends: 8934 [2022-03-15 13:54:06,884 INFO L226 Difference]: Without dead ends: 8438 [2022-03-15 13:54:06,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=299, Invalid=961, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:54:06,885 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 200 mSDsluCounter, 2587 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 2774 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:06,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 2774 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:06,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8438 states. [2022-03-15 13:54:06,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8438 to 7678. [2022-03-15 13:54:06,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7678 states, 7677 states have (on average 2.6428292301680343) internal successors, (20289), 7677 states have internal predecessors, (20289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:06,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7678 states to 7678 states and 20289 transitions. [2022-03-15 13:54:06,993 INFO L78 Accepts]: Start accepts. Automaton has 7678 states and 20289 transitions. Word has length 109 [2022-03-15 13:54:06,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:06,993 INFO L470 AbstractCegarLoop]: Abstraction has 7678 states and 20289 transitions. [2022-03-15 13:54:06,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:06,994 INFO L276 IsEmpty]: Start isEmpty. Operand 7678 states and 20289 transitions. [2022-03-15 13:54:07,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:07,002 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:07,002 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:07,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable412 [2022-03-15 13:54:07,003 INFO L402 AbstractCegarLoop]: === Iteration 414 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:07,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:07,003 INFO L85 PathProgramCache]: Analyzing trace with hash -477638808, now seen corresponding path program 112 times [2022-03-15 13:54:07,003 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:07,003 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866250265] [2022-03-15 13:54:07,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:07,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:07,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:07,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:07,112 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:07,112 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866250265] [2022-03-15 13:54:07,112 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866250265] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:07,112 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:07,112 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:07,112 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085765779] [2022-03-15 13:54:07,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:07,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:07,113 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:07,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:07,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:07,113 INFO L87 Difference]: Start difference. First operand 7678 states and 20289 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:07,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:07,543 INFO L93 Difference]: Finished difference Result 8968 states and 23658 transitions. [2022-03-15 13:54:07,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:54:07,543 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:07,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:07,555 INFO L225 Difference]: With dead ends: 8968 [2022-03-15 13:54:07,555 INFO L226 Difference]: Without dead ends: 8489 [2022-03-15 13:54:07,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=313, Invalid=1019, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:54:07,555 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 236 mSDsluCounter, 2610 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 2790 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:07,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 2790 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:07,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8489 states. [2022-03-15 13:54:07,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8489 to 7698. [2022-03-15 13:54:07,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6425880213070028) internal successors, (20340), 7697 states have internal predecessors, (20340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:07,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20340 transitions. [2022-03-15 13:54:07,663 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20340 transitions. Word has length 109 [2022-03-15 13:54:07,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:07,663 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20340 transitions. [2022-03-15 13:54:07,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:07,663 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20340 transitions. [2022-03-15 13:54:07,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:07,672 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:07,672 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:07,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable413 [2022-03-15 13:54:07,672 INFO L402 AbstractCegarLoop]: === Iteration 415 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:07,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:07,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1149884310, now seen corresponding path program 113 times [2022-03-15 13:54:07,672 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:07,672 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342127953] [2022-03-15 13:54:07,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:07,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:07,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:07,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:07,773 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:07,773 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342127953] [2022-03-15 13:54:07,773 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342127953] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:07,773 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:07,773 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:07,773 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843992049] [2022-03-15 13:54:07,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:07,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:07,773 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:07,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:07,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:07,774 INFO L87 Difference]: Start difference. First operand 7698 states and 20340 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:08,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:08,181 INFO L93 Difference]: Finished difference Result 8926 states and 23547 transitions. [2022-03-15 13:54:08,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:54:08,181 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:08,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:08,192 INFO L225 Difference]: With dead ends: 8926 [2022-03-15 13:54:08,192 INFO L226 Difference]: Without dead ends: 8446 [2022-03-15 13:54:08,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=339, Invalid=1067, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:54:08,193 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 227 mSDsluCounter, 2122 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 2319 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:08,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 2319 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:08,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8446 states. [2022-03-15 13:54:08,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8446 to 7694. [2022-03-15 13:54:08,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6425321721045107) internal successors, (20329), 7693 states have internal predecessors, (20329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:08,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20329 transitions. [2022-03-15 13:54:08,286 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20329 transitions. Word has length 109 [2022-03-15 13:54:08,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:08,287 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20329 transitions. [2022-03-15 13:54:08,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:08,287 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20329 transitions. [2022-03-15 13:54:08,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:08,294 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:08,294 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:08,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable414 [2022-03-15 13:54:08,295 INFO L402 AbstractCegarLoop]: === Iteration 416 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:08,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:08,295 INFO L85 PathProgramCache]: Analyzing trace with hash 28826970, now seen corresponding path program 114 times [2022-03-15 13:54:08,295 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:08,295 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186525758] [2022-03-15 13:54:08,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:08,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:08,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:08,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:08,396 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:08,396 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186525758] [2022-03-15 13:54:08,396 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186525758] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:08,396 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:08,396 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:08,396 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767591791] [2022-03-15 13:54:08,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:08,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:08,396 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:08,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:08,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:08,396 INFO L87 Difference]: Start difference. First operand 7694 states and 20329 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:08,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:08,854 INFO L93 Difference]: Finished difference Result 9014 states and 23769 transitions. [2022-03-15 13:54:08,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-15 13:54:08,854 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:08,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:08,866 INFO L225 Difference]: With dead ends: 9014 [2022-03-15 13:54:08,866 INFO L226 Difference]: Without dead ends: 8494 [2022-03-15 13:54:08,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=443, Invalid=1363, Unknown=0, NotChecked=0, Total=1806 [2022-03-15 13:54:08,866 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 293 mSDsluCounter, 2319 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 2517 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:08,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 2517 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:08,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8494 states. [2022-03-15 13:54:08,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8494 to 7690. [2022-03-15 13:54:08,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6424762647938613) internal successors, (20318), 7689 states have internal predecessors, (20318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:08,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20318 transitions. [2022-03-15 13:54:08,956 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20318 transitions. Word has length 109 [2022-03-15 13:54:08,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:08,957 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20318 transitions. [2022-03-15 13:54:08,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:08,957 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20318 transitions. [2022-03-15 13:54:08,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:08,965 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:08,965 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:08,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable415 [2022-03-15 13:54:08,965 INFO L402 AbstractCegarLoop]: === Iteration 417 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:08,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:08,965 INFO L85 PathProgramCache]: Analyzing trace with hash 101456694, now seen corresponding path program 115 times [2022-03-15 13:54:08,965 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:08,965 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092471473] [2022-03-15 13:54:08,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:08,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:08,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:09,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:09,072 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:09,072 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092471473] [2022-03-15 13:54:09,072 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092471473] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:09,072 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:09,072 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:09,072 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934927628] [2022-03-15 13:54:09,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:09,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:09,073 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:09,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:09,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:09,073 INFO L87 Difference]: Start difference. First operand 7690 states and 20318 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:09,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:09,595 INFO L93 Difference]: Finished difference Result 9128 states and 24069 transitions. [2022-03-15 13:54:09,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:54:09,595 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:09,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:09,605 INFO L225 Difference]: With dead ends: 9128 [2022-03-15 13:54:09,605 INFO L226 Difference]: Without dead ends: 8606 [2022-03-15 13:54:09,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=469, Invalid=1511, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 13:54:09,606 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 335 mSDsluCounter, 2478 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 2661 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:09,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [335 Valid, 2661 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:09,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8606 states. [2022-03-15 13:54:09,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8606 to 7694. [2022-03-15 13:54:09,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.642012218900299) internal successors, (20325), 7693 states have internal predecessors, (20325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:09,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20325 transitions. [2022-03-15 13:54:09,701 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20325 transitions. Word has length 109 [2022-03-15 13:54:09,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:09,701 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20325 transitions. [2022-03-15 13:54:09,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:09,701 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20325 transitions. [2022-03-15 13:54:09,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:09,709 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:09,709 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:09,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable416 [2022-03-15 13:54:09,709 INFO L402 AbstractCegarLoop]: === Iteration 418 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:09,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:09,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1456458656, now seen corresponding path program 116 times [2022-03-15 13:54:09,710 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:09,710 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388067912] [2022-03-15 13:54:09,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:09,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:09,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:09,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:09,810 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:09,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388067912] [2022-03-15 13:54:09,810 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388067912] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:09,810 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:09,810 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:09,810 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253550620] [2022-03-15 13:54:09,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:09,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:09,810 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:09,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:09,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:09,810 INFO L87 Difference]: Start difference. First operand 7694 states and 20325 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:10,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:10,233 INFO L93 Difference]: Finished difference Result 8964 states and 23639 transitions. [2022-03-15 13:54:10,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:54:10,233 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:10,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:10,245 INFO L225 Difference]: With dead ends: 8964 [2022-03-15 13:54:10,245 INFO L226 Difference]: Without dead ends: 8485 [2022-03-15 13:54:10,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=334, Invalid=1148, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:54:10,245 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 262 mSDsluCounter, 2307 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 2490 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:10,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 2490 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:10,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8485 states. [2022-03-15 13:54:10,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8485 to 7698. [2022-03-15 13:54:10,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6415486553202547) internal successors, (20332), 7697 states have internal predecessors, (20332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:10,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20332 transitions. [2022-03-15 13:54:10,343 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20332 transitions. Word has length 109 [2022-03-15 13:54:10,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:10,343 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20332 transitions. [2022-03-15 13:54:10,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:10,344 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20332 transitions. [2022-03-15 13:54:10,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:10,352 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:10,352 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:10,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable417 [2022-03-15 13:54:10,352 INFO L402 AbstractCegarLoop]: === Iteration 419 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:10,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:10,352 INFO L85 PathProgramCache]: Analyzing trace with hash 171064462, now seen corresponding path program 117 times [2022-03-15 13:54:10,352 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:10,352 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510677250] [2022-03-15 13:54:10,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:10,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:10,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:10,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:10,462 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:10,462 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510677250] [2022-03-15 13:54:10,462 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510677250] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:10,462 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:10,462 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:10,462 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912826779] [2022-03-15 13:54:10,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:10,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:10,462 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:10,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:10,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:10,463 INFO L87 Difference]: Start difference. First operand 7698 states and 20332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:10,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:10,868 INFO L93 Difference]: Finished difference Result 8898 states and 23462 transitions. [2022-03-15 13:54:10,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:54:10,868 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:10,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:10,879 INFO L225 Difference]: With dead ends: 8898 [2022-03-15 13:54:10,879 INFO L226 Difference]: Without dead ends: 8410 [2022-03-15 13:54:10,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=318, Invalid=942, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:54:10,879 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 242 mSDsluCounter, 2352 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 2538 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:10,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 2538 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:10,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8410 states. [2022-03-15 13:54:10,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8410 to 7686. [2022-03-15 13:54:10,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7686 states, 7685 states have (on average 2.64242029928432) internal successors, (20307), 7685 states have internal predecessors, (20307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:10,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20307 transitions. [2022-03-15 13:54:10,981 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20307 transitions. Word has length 109 [2022-03-15 13:54:10,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:10,981 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20307 transitions. [2022-03-15 13:54:10,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:10,981 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20307 transitions. [2022-03-15 13:54:10,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:10,990 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:10,990 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:10,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable418 [2022-03-15 13:54:10,990 INFO L402 AbstractCegarLoop]: === Iteration 420 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:10,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:10,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1111279638, now seen corresponding path program 118 times [2022-03-15 13:54:10,990 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:10,990 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487053064] [2022-03-15 13:54:10,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:10,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:10,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:11,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:11,100 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:11,100 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487053064] [2022-03-15 13:54:11,100 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487053064] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:11,100 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:11,100 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:11,100 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181673604] [2022-03-15 13:54:11,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:11,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:11,100 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:11,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:11,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:11,101 INFO L87 Difference]: Start difference. First operand 7686 states and 20307 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:11,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:11,780 INFO L93 Difference]: Finished difference Result 9261 states and 24416 transitions. [2022-03-15 13:54:11,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-15 13:54:11,780 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:11,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:11,791 INFO L225 Difference]: With dead ends: 9261 [2022-03-15 13:54:11,791 INFO L226 Difference]: Without dead ends: 8696 [2022-03-15 13:54:11,792 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 759 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=665, Invalid=2091, Unknown=0, NotChecked=0, Total=2756 [2022-03-15 13:54:11,792 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 409 mSDsluCounter, 2393 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 2578 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:11,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [409 Valid, 2578 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:11,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8696 states. [2022-03-15 13:54:11,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8696 to 7690. [2022-03-15 13:54:11,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.641956041097672) internal successors, (20314), 7689 states have internal predecessors, (20314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:11,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20314 transitions. [2022-03-15 13:54:11,891 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20314 transitions. Word has length 109 [2022-03-15 13:54:11,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:11,891 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20314 transitions. [2022-03-15 13:54:11,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:11,891 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20314 transitions. [2022-03-15 13:54:11,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:11,900 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:11,900 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:11,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable419 [2022-03-15 13:54:11,900 INFO L402 AbstractCegarLoop]: === Iteration 421 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:11,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:11,900 INFO L85 PathProgramCache]: Analyzing trace with hash -246848576, now seen corresponding path program 119 times [2022-03-15 13:54:11,900 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:11,900 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815936576] [2022-03-15 13:54:11,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:11,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:12,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:12,036 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:12,036 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815936576] [2022-03-15 13:54:12,036 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815936576] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:12,036 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:12,036 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:12,036 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155187109] [2022-03-15 13:54:12,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:12,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:12,036 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:12,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:12,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:12,036 INFO L87 Difference]: Start difference. First operand 7690 states and 20314 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:12,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:12,616 INFO L93 Difference]: Finished difference Result 9136 states and 24087 transitions. [2022-03-15 13:54:12,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:54:12,617 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:12,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:12,629 INFO L225 Difference]: With dead ends: 9136 [2022-03-15 13:54:12,629 INFO L226 Difference]: Without dead ends: 8614 [2022-03-15 13:54:12,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 508 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=481, Invalid=1589, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:54:12,630 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 341 mSDsluCounter, 2395 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 2576 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:12,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [341 Valid, 2576 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:12,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8614 states. [2022-03-15 13:54:12,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8614 to 7694. [2022-03-15 13:54:12,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6414922656960873) internal successors, (20321), 7693 states have internal predecessors, (20321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:12,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20321 transitions. [2022-03-15 13:54:12,729 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20321 transitions. Word has length 109 [2022-03-15 13:54:12,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:12,729 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20321 transitions. [2022-03-15 13:54:12,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:12,729 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20321 transitions. [2022-03-15 13:54:12,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:12,737 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:12,737 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:12,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable420 [2022-03-15 13:54:12,737 INFO L402 AbstractCegarLoop]: === Iteration 422 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:12,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:12,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1804763926, now seen corresponding path program 120 times [2022-03-15 13:54:12,738 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:12,738 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128919781] [2022-03-15 13:54:12,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:12,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:12,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:12,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:12,840 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:12,840 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128919781] [2022-03-15 13:54:12,840 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128919781] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:12,840 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:12,840 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:12,840 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099958539] [2022-03-15 13:54:12,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:12,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:12,840 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:12,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:12,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:12,841 INFO L87 Difference]: Start difference. First operand 7694 states and 20321 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:13,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:13,251 INFO L93 Difference]: Finished difference Result 8972 states and 23657 transitions. [2022-03-15 13:54:13,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:54:13,251 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:13,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:13,261 INFO L225 Difference]: With dead ends: 8972 [2022-03-15 13:54:13,261 INFO L226 Difference]: Without dead ends: 8493 [2022-03-15 13:54:13,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=1080, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:54:13,262 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 270 mSDsluCounter, 2142 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 2323 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:13,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 2323 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:13,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8493 states. [2022-03-15 13:54:13,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8493 to 7698. [2022-03-15 13:54:13,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6410289723268807) internal successors, (20328), 7697 states have internal predecessors, (20328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:13,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20328 transitions. [2022-03-15 13:54:13,366 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20328 transitions. Word has length 109 [2022-03-15 13:54:13,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:13,366 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20328 transitions. [2022-03-15 13:54:13,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:13,366 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20328 transitions. [2022-03-15 13:54:13,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:13,374 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:13,374 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:13,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable421 [2022-03-15 13:54:13,374 INFO L402 AbstractCegarLoop]: === Iteration 423 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:13,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:13,374 INFO L85 PathProgramCache]: Analyzing trace with hash -177240808, now seen corresponding path program 121 times [2022-03-15 13:54:13,374 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:13,374 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322816571] [2022-03-15 13:54:13,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:13,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:13,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:13,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:13,475 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:13,475 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322816571] [2022-03-15 13:54:13,475 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322816571] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:13,475 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:13,475 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:13,475 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832595915] [2022-03-15 13:54:13,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:13,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:13,476 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:13,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:13,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:13,476 INFO L87 Difference]: Start difference. First operand 7698 states and 20328 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:13,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:13,844 INFO L93 Difference]: Finished difference Result 8898 states and 23458 transitions. [2022-03-15 13:54:13,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:54:13,844 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:13,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:13,855 INFO L225 Difference]: With dead ends: 8898 [2022-03-15 13:54:13,855 INFO L226 Difference]: Without dead ends: 8406 [2022-03-15 13:54:13,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=305, Invalid=955, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:54:13,856 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 249 mSDsluCounter, 2068 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 2252 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:13,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 2252 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:13,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8406 states. [2022-03-15 13:54:13,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8406 to 7682. [2022-03-15 13:54:13,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7682 states, 7681 states have (on average 2.642364275484963) internal successors, (20296), 7681 states have internal predecessors, (20296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:13,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7682 states to 7682 states and 20296 transitions. [2022-03-15 13:54:13,950 INFO L78 Accepts]: Start accepts. Automaton has 7682 states and 20296 transitions. Word has length 109 [2022-03-15 13:54:13,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:13,950 INFO L470 AbstractCegarLoop]: Abstraction has 7682 states and 20296 transitions. [2022-03-15 13:54:13,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:13,950 INFO L276 IsEmpty]: Start isEmpty. Operand 7682 states and 20296 transitions. [2022-03-15 13:54:13,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:13,959 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:13,959 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:13,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable422 [2022-03-15 13:54:13,959 INFO L402 AbstractCegarLoop]: === Iteration 424 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:13,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:13,960 INFO L85 PathProgramCache]: Analyzing trace with hash -758803116, now seen corresponding path program 122 times [2022-03-15 13:54:13,960 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:13,960 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579052532] [2022-03-15 13:54:13,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:13,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:13,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:14,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:14,065 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:14,065 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579052532] [2022-03-15 13:54:14,065 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579052532] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:14,065 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:14,065 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:14,065 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63677372] [2022-03-15 13:54:14,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:14,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:14,065 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:14,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:14,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:14,065 INFO L87 Difference]: Start difference. First operand 7682 states and 20296 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:14,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:14,697 INFO L93 Difference]: Finished difference Result 9142 states and 24070 transitions. [2022-03-15 13:54:14,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-15 13:54:14,697 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:14,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:14,707 INFO L225 Difference]: With dead ends: 9142 [2022-03-15 13:54:14,707 INFO L226 Difference]: Without dead ends: 8534 [2022-03-15 13:54:14,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 930 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=796, Invalid=2510, Unknown=0, NotChecked=0, Total=3306 [2022-03-15 13:54:14,708 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 474 mSDsluCounter, 2605 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 2785 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:14,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [474 Valid, 2785 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:14,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8534 states. [2022-03-15 13:54:14,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8534 to 7686. [2022-03-15 13:54:14,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7686 states, 7685 states have (on average 2.6418998048145736) internal successors, (20303), 7685 states have internal predecessors, (20303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:14,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20303 transitions. [2022-03-15 13:54:14,798 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20303 transitions. Word has length 109 [2022-03-15 13:54:14,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:14,798 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20303 transitions. [2022-03-15 13:54:14,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:14,798 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20303 transitions. [2022-03-15 13:54:14,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:14,805 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:14,805 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:14,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable423 [2022-03-15 13:54:14,806 INFO L402 AbstractCegarLoop]: === Iteration 425 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:14,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:14,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1265692440, now seen corresponding path program 123 times [2022-03-15 13:54:14,806 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:14,806 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824951501] [2022-03-15 13:54:14,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:14,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:14,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:14,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:14,905 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:14,905 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824951501] [2022-03-15 13:54:14,905 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824951501] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:14,905 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:14,905 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:14,905 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849755172] [2022-03-15 13:54:14,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:14,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:14,905 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:14,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:14,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:14,906 INFO L87 Difference]: Start difference. First operand 7686 states and 20303 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:15,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:15,519 INFO L93 Difference]: Finished difference Result 9037 states and 23796 transitions. [2022-03-15 13:54:15,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-15 13:54:15,519 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:15,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:15,531 INFO L225 Difference]: With dead ends: 9037 [2022-03-15 13:54:15,531 INFO L226 Difference]: Without dead ends: 8472 [2022-03-15 13:54:15,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 811 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=675, Invalid=2295, Unknown=0, NotChecked=0, Total=2970 [2022-03-15 13:54:15,531 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 421 mSDsluCounter, 2467 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 2647 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:15,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 2647 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:15,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8472 states. [2022-03-15 13:54:15,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8472 to 7690. [2022-03-15 13:54:15,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6414358174014825) internal successors, (20310), 7689 states have internal predecessors, (20310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:15,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20310 transitions. [2022-03-15 13:54:15,634 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20310 transitions. Word has length 109 [2022-03-15 13:54:15,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:15,635 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20310 transitions. [2022-03-15 13:54:15,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:15,635 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20310 transitions. [2022-03-15 13:54:15,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:15,643 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:15,643 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:15,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable424 [2022-03-15 13:54:15,643 INFO L402 AbstractCegarLoop]: === Iteration 426 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:15,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:15,643 INFO L85 PathProgramCache]: Analyzing trace with hash 2130123502, now seen corresponding path program 124 times [2022-03-15 13:54:15,643 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:15,643 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914060704] [2022-03-15 13:54:15,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:15,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:15,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:15,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:15,752 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:15,752 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914060704] [2022-03-15 13:54:15,752 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914060704] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:15,752 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:15,752 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:15,752 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184284616] [2022-03-15 13:54:15,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:15,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:15,752 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:15,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:15,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:15,752 INFO L87 Difference]: Start difference. First operand 7690 states and 20310 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:16,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:16,264 INFO L93 Difference]: Finished difference Result 8932 states and 23522 transitions. [2022-03-15 13:54:16,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:54:16,264 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:16,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:16,275 INFO L225 Difference]: With dead ends: 8932 [2022-03-15 13:54:16,275 INFO L226 Difference]: Without dead ends: 8410 [2022-03-15 13:54:16,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:54:16,275 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 353 mSDsluCounter, 1793 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 1984 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:16,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [353 Valid, 1984 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:16,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8410 states. [2022-03-15 13:54:16,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8410 to 7694. [2022-03-15 13:54:16,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6409723124918756) internal successors, (20317), 7693 states have internal predecessors, (20317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:16,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20317 transitions. [2022-03-15 13:54:16,372 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20317 transitions. Word has length 109 [2022-03-15 13:54:16,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:16,372 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20317 transitions. [2022-03-15 13:54:16,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:16,372 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20317 transitions. [2022-03-15 13:54:16,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:16,381 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:16,381 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:16,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable425 [2022-03-15 13:54:16,381 INFO L402 AbstractCegarLoop]: === Iteration 427 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:16,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:16,381 INFO L85 PathProgramCache]: Analyzing trace with hash 572208152, now seen corresponding path program 125 times [2022-03-15 13:54:16,381 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:16,382 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513553416] [2022-03-15 13:54:16,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:16,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:16,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:16,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:16,488 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:16,488 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513553416] [2022-03-15 13:54:16,488 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513553416] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:16,488 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:16,488 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:16,488 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167119329] [2022-03-15 13:54:16,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:16,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:16,488 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:16,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:16,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:16,489 INFO L87 Difference]: Start difference. First operand 7694 states and 20317 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:16,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:16,885 INFO L93 Difference]: Finished difference Result 8808 states and 23202 transitions. [2022-03-15 13:54:16,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:54:16,885 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:16,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:16,897 INFO L225 Difference]: With dead ends: 8808 [2022-03-15 13:54:16,897 INFO L226 Difference]: Without dead ends: 8329 [2022-03-15 13:54:16,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=325, Invalid=1157, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:54:16,898 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 288 mSDsluCounter, 2119 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 2296 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:16,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [288 Valid, 2296 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:16,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8329 states. [2022-03-15 13:54:16,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8329 to 7698. [2022-03-15 13:54:16,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6405092893335067) internal successors, (20324), 7697 states have internal predecessors, (20324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:16,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20324 transitions. [2022-03-15 13:54:16,995 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20324 transitions. Word has length 109 [2022-03-15 13:54:16,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:16,995 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20324 transitions. [2022-03-15 13:54:16,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:16,995 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20324 transitions. [2022-03-15 13:54:17,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:17,004 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:17,004 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:17,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable426 [2022-03-15 13:54:17,004 INFO L402 AbstractCegarLoop]: === Iteration 428 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:17,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:17,004 INFO L85 PathProgramCache]: Analyzing trace with hash -2095236026, now seen corresponding path program 126 times [2022-03-15 13:54:17,004 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:17,004 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238250776] [2022-03-15 13:54:17,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:17,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:17,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:17,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:17,110 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:17,110 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238250776] [2022-03-15 13:54:17,110 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238250776] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:17,110 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:17,110 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:17,110 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492689260] [2022-03-15 13:54:17,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:17,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:17,110 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:17,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:17,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:17,110 INFO L87 Difference]: Start difference. First operand 7698 states and 20324 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:17,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:17,472 INFO L93 Difference]: Finished difference Result 8646 states and 22761 transitions. [2022-03-15 13:54:17,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-15 13:54:17,473 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:17,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:17,482 INFO L225 Difference]: With dead ends: 8646 [2022-03-15 13:54:17,483 INFO L226 Difference]: Without dead ends: 8122 [2022-03-15 13:54:17,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=289, Invalid=833, Unknown=0, NotChecked=0, Total=1122 [2022-03-15 13:54:17,483 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 219 mSDsluCounter, 2506 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 2680 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:17,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 2680 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:17,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8122 states. [2022-03-15 13:54:17,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8122 to 7650. [2022-03-15 13:54:17,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7650 states, 7649 states have (on average 2.6434828082102237) internal successors, (20220), 7649 states have internal predecessors, (20220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:17,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7650 states to 7650 states and 20220 transitions. [2022-03-15 13:54:17,624 INFO L78 Accepts]: Start accepts. Automaton has 7650 states and 20220 transitions. Word has length 109 [2022-03-15 13:54:17,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:17,624 INFO L470 AbstractCegarLoop]: Abstraction has 7650 states and 20220 transitions. [2022-03-15 13:54:17,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:17,624 INFO L276 IsEmpty]: Start isEmpty. Operand 7650 states and 20220 transitions. [2022-03-15 13:54:17,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:17,631 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:17,631 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:17,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable427 [2022-03-15 13:54:17,631 INFO L402 AbstractCegarLoop]: === Iteration 429 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:17,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:17,632 INFO L85 PathProgramCache]: Analyzing trace with hash 533071862, now seen corresponding path program 127 times [2022-03-15 13:54:17,632 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:17,632 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965255675] [2022-03-15 13:54:17,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:17,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:17,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:17,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:17,730 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:17,730 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965255675] [2022-03-15 13:54:17,730 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965255675] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:17,730 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:17,731 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:17,731 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659898928] [2022-03-15 13:54:17,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:17,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:17,731 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:17,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:17,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:17,731 INFO L87 Difference]: Start difference. First operand 7650 states and 20220 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:18,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:18,474 INFO L93 Difference]: Finished difference Result 9046 states and 23741 transitions. [2022-03-15 13:54:18,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-03-15 13:54:18,474 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:18,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:18,485 INFO L225 Difference]: With dead ends: 9046 [2022-03-15 13:54:18,485 INFO L226 Difference]: Without dead ends: 8163 [2022-03-15 13:54:18,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1234 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=999, Invalid=3291, Unknown=0, NotChecked=0, Total=4290 [2022-03-15 13:54:18,486 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 618 mSDsluCounter, 3196 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 3418 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:18,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [618 Valid, 3418 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:18,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8163 states. [2022-03-15 13:54:18,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8163 to 7375. [2022-03-15 13:54:18,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7375 states, 7374 states have (on average 2.6471385950637374) internal successors, (19520), 7374 states have internal predecessors, (19520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:18,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7375 states to 7375 states and 19520 transitions. [2022-03-15 13:54:18,582 INFO L78 Accepts]: Start accepts. Automaton has 7375 states and 19520 transitions. Word has length 109 [2022-03-15 13:54:18,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:18,582 INFO L470 AbstractCegarLoop]: Abstraction has 7375 states and 19520 transitions. [2022-03-15 13:54:18,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:18,582 INFO L276 IsEmpty]: Start isEmpty. Operand 7375 states and 19520 transitions. [2022-03-15 13:54:18,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:18,590 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:18,590 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:18,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable428 [2022-03-15 13:54:18,590 INFO L402 AbstractCegarLoop]: === Iteration 430 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:18,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:18,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1937111454, now seen corresponding path program 128 times [2022-03-15 13:54:18,590 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:18,590 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827382014] [2022-03-15 13:54:18,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:18,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:18,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:18,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:18,691 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:18,691 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827382014] [2022-03-15 13:54:18,691 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827382014] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:18,691 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:18,691 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:18,691 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378932831] [2022-03-15 13:54:18,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:18,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:18,691 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:18,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:18,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:18,692 INFO L87 Difference]: Start difference. First operand 7375 states and 19520 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:19,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:19,399 INFO L93 Difference]: Finished difference Result 8883 states and 23436 transitions. [2022-03-15 13:54:19,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-15 13:54:19,399 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:19,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:19,410 INFO L225 Difference]: With dead ends: 8883 [2022-03-15 13:54:19,410 INFO L226 Difference]: Without dead ends: 8275 [2022-03-15 13:54:19,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1148 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=850, Invalid=3056, Unknown=0, NotChecked=0, Total=3906 [2022-03-15 13:54:19,411 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 488 mSDsluCounter, 2949 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 3170 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:19,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [488 Valid, 3170 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:19,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8275 states. [2022-03-15 13:54:19,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8275 to 7379. [2022-03-15 13:54:19,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7379 states, 7378 states have (on average 2.646652209270805) internal successors, (19527), 7378 states have internal predecessors, (19527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:19,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7379 states to 7379 states and 19527 transitions. [2022-03-15 13:54:19,511 INFO L78 Accepts]: Start accepts. Automaton has 7379 states and 19527 transitions. Word has length 109 [2022-03-15 13:54:19,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:19,512 INFO L470 AbstractCegarLoop]: Abstraction has 7379 states and 19527 transitions. [2022-03-15 13:54:19,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:19,512 INFO L276 IsEmpty]: Start isEmpty. Operand 7379 states and 19527 transitions. [2022-03-15 13:54:19,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:19,520 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:19,520 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:19,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable429 [2022-03-15 13:54:19,520 INFO L402 AbstractCegarLoop]: === Iteration 431 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:19,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:19,520 INFO L85 PathProgramCache]: Analyzing trace with hash -333360286, now seen corresponding path program 129 times [2022-03-15 13:54:19,521 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:19,521 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923544042] [2022-03-15 13:54:19,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:19,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:19,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:19,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:19,621 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:19,621 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923544042] [2022-03-15 13:54:19,621 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923544042] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:19,621 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:19,621 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:19,621 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148342289] [2022-03-15 13:54:19,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:19,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:19,621 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:19,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:19,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:19,622 INFO L87 Difference]: Start difference. First operand 7379 states and 19527 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:20,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:20,253 INFO L93 Difference]: Finished difference Result 8758 states and 23107 transitions. [2022-03-15 13:54:20,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-15 13:54:20,253 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:20,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:20,263 INFO L225 Difference]: With dead ends: 8758 [2022-03-15 13:54:20,264 INFO L226 Difference]: Without dead ends: 8193 [2022-03-15 13:54:20,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 823 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=620, Invalid=2242, Unknown=0, NotChecked=0, Total=2862 [2022-03-15 13:54:20,264 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 383 mSDsluCounter, 2978 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 3196 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:20,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [383 Valid, 3196 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:20,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8193 states. [2022-03-15 13:54:20,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8193 to 7383. [2022-03-15 13:54:20,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7383 states, 7382 states have (on average 2.646166350582498) internal successors, (19534), 7382 states have internal predecessors, (19534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:20,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7383 states to 7383 states and 19534 transitions. [2022-03-15 13:54:20,353 INFO L78 Accepts]: Start accepts. Automaton has 7383 states and 19534 transitions. Word has length 109 [2022-03-15 13:54:20,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:20,353 INFO L470 AbstractCegarLoop]: Abstraction has 7383 states and 19534 transitions. [2022-03-15 13:54:20,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:20,353 INFO L276 IsEmpty]: Start isEmpty. Operand 7383 states and 19534 transitions. [2022-03-15 13:54:20,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:20,361 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:20,361 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:20,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable430 [2022-03-15 13:54:20,361 INFO L402 AbstractCegarLoop]: === Iteration 432 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:20,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:20,361 INFO L85 PathProgramCache]: Analyzing trace with hash 531070776, now seen corresponding path program 130 times [2022-03-15 13:54:20,361 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:20,361 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030398708] [2022-03-15 13:54:20,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:20,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:20,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:20,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:20,460 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:20,460 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030398708] [2022-03-15 13:54:20,460 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030398708] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:20,460 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:20,460 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:20,460 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637262834] [2022-03-15 13:54:20,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:20,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:20,460 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:20,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:20,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:20,460 INFO L87 Difference]: Start difference. First operand 7383 states and 19534 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:20,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:20,919 INFO L93 Difference]: Finished difference Result 8633 states and 22778 transitions. [2022-03-15 13:54:20,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:54:20,919 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:20,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:20,929 INFO L225 Difference]: With dead ends: 8633 [2022-03-15 13:54:20,929 INFO L226 Difference]: Without dead ends: 8111 [2022-03-15 13:54:20,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=443, Invalid=1627, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:54:20,929 INFO L933 BasicCegarLoop]: 296 mSDtfsCounter, 319 mSDsluCounter, 1852 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:20,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [319 Valid, 2095 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:20,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8111 states. [2022-03-15 13:54:21,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8111 to 7387. [2022-03-15 13:54:21,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7387 states, 7386 states have (on average 2.6456810181424317) internal successors, (19541), 7386 states have internal predecessors, (19541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:21,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7387 states to 7387 states and 19541 transitions. [2022-03-15 13:54:21,024 INFO L78 Accepts]: Start accepts. Automaton has 7387 states and 19541 transitions. Word has length 109 [2022-03-15 13:54:21,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:21,025 INFO L470 AbstractCegarLoop]: Abstraction has 7387 states and 19541 transitions. [2022-03-15 13:54:21,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:21,025 INFO L276 IsEmpty]: Start isEmpty. Operand 7387 states and 19541 transitions. [2022-03-15 13:54:21,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:21,032 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:21,032 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:21,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable431 [2022-03-15 13:54:21,033 INFO L402 AbstractCegarLoop]: === Iteration 433 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:21,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:21,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1026844574, now seen corresponding path program 131 times [2022-03-15 13:54:21,033 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:21,033 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038014000] [2022-03-15 13:54:21,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:21,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:21,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:21,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:21,134 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:21,134 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038014000] [2022-03-15 13:54:21,134 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038014000] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:21,134 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:21,134 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:21,134 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757006003] [2022-03-15 13:54:21,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:21,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:21,134 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:21,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:21,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:21,135 INFO L87 Difference]: Start difference. First operand 7387 states and 19541 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:21,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:21,494 INFO L93 Difference]: Finished difference Result 8469 states and 22348 transitions. [2022-03-15 13:54:21,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:54:21,494 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:21,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:21,503 INFO L225 Difference]: With dead ends: 8469 [2022-03-15 13:54:21,503 INFO L226 Difference]: Without dead ends: 7990 [2022-03-15 13:54:21,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=316, Invalid=1090, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:54:21,503 INFO L933 BasicCegarLoop]: 284 mSDtfsCounter, 245 mSDsluCounter, 2053 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 2282 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:21,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 2282 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:21,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7990 states. [2022-03-15 13:54:21,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7990 to 7391. [2022-03-15 13:54:21,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7391 states, 7390 states have (on average 2.6451962110960756) internal successors, (19548), 7390 states have internal predecessors, (19548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:21,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7391 states to 7391 states and 19548 transitions. [2022-03-15 13:54:21,590 INFO L78 Accepts]: Start accepts. Automaton has 7391 states and 19548 transitions. Word has length 109 [2022-03-15 13:54:21,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:21,590 INFO L470 AbstractCegarLoop]: Abstraction has 7391 states and 19548 transitions. [2022-03-15 13:54:21,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:21,590 INFO L276 IsEmpty]: Start isEmpty. Operand 7391 states and 19548 transitions. [2022-03-15 13:54:21,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:21,597 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:21,597 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:21,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable432 [2022-03-15 13:54:21,598 INFO L402 AbstractCegarLoop]: === Iteration 434 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:21,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:21,598 INFO L85 PathProgramCache]: Analyzing trace with hash 600678544, now seen corresponding path program 132 times [2022-03-15 13:54:21,598 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:21,598 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800419208] [2022-03-15 13:54:21,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:21,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:21,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:21,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:21,694 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:21,694 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800419208] [2022-03-15 13:54:21,694 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800419208] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:21,695 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:21,695 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:21,695 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190065150] [2022-03-15 13:54:21,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:21,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:21,695 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:21,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:21,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:21,695 INFO L87 Difference]: Start difference. First operand 7391 states and 19548 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:22,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:22,059 INFO L93 Difference]: Finished difference Result 8387 states and 22127 transitions. [2022-03-15 13:54:22,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-15 13:54:22,059 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:22,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:22,070 INFO L225 Difference]: With dead ends: 8387 [2022-03-15 13:54:22,071 INFO L226 Difference]: Without dead ends: 7869 [2022-03-15 13:54:22,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=934, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:54:22,071 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 220 mSDsluCounter, 2897 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 3102 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:22,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 3102 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:22,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7869 states. [2022-03-15 13:54:22,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7869 to 7349. [2022-03-15 13:54:22,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7349 states, 7348 states have (on average 2.647387044093631) internal successors, (19453), 7348 states have internal predecessors, (19453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:22,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7349 states to 7349 states and 19453 transitions. [2022-03-15 13:54:22,163 INFO L78 Accepts]: Start accepts. Automaton has 7349 states and 19453 transitions. Word has length 109 [2022-03-15 13:54:22,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:22,163 INFO L470 AbstractCegarLoop]: Abstraction has 7349 states and 19453 transitions. [2022-03-15 13:54:22,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:22,164 INFO L276 IsEmpty]: Start isEmpty. Operand 7349 states and 19453 transitions. [2022-03-15 13:54:22,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:22,171 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:22,171 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:22,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable433 [2022-03-15 13:54:22,171 INFO L402 AbstractCegarLoop]: === Iteration 435 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:22,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:22,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1160979608, now seen corresponding path program 133 times [2022-03-15 13:54:22,171 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:22,171 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787996158] [2022-03-15 13:54:22,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:22,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:22,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:22,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:22,275 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:22,275 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787996158] [2022-03-15 13:54:22,275 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787996158] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:22,275 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:22,275 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:22,275 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226474343] [2022-03-15 13:54:22,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:22,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:22,275 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:22,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:22,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:22,276 INFO L87 Difference]: Start difference. First operand 7349 states and 19453 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:22,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:22,640 INFO L93 Difference]: Finished difference Result 8579 states and 22667 transitions. [2022-03-15 13:54:22,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:54:22,641 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:22,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:22,650 INFO L225 Difference]: With dead ends: 8579 [2022-03-15 13:54:22,650 INFO L226 Difference]: Without dead ends: 8100 [2022-03-15 13:54:22,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=312, Invalid=1020, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:54:22,651 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 246 mSDsluCounter, 1980 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 2205 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:22,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 2205 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:22,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8100 states. [2022-03-15 13:54:22,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8100 to 7369. [2022-03-15 13:54:22,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7369 states, 7368 states have (on average 2.6471226927252984) internal successors, (19504), 7368 states have internal predecessors, (19504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:22,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7369 states to 7369 states and 19504 transitions. [2022-03-15 13:54:22,741 INFO L78 Accepts]: Start accepts. Automaton has 7369 states and 19504 transitions. Word has length 109 [2022-03-15 13:54:22,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:22,741 INFO L470 AbstractCegarLoop]: Abstraction has 7369 states and 19504 transitions. [2022-03-15 13:54:22,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:22,741 INFO L276 IsEmpty]: Start isEmpty. Operand 7369 states and 19504 transitions. [2022-03-15 13:54:22,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:22,749 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:22,749 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:22,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable434 [2022-03-15 13:54:22,749 INFO L402 AbstractCegarLoop]: === Iteration 436 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:22,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:22,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1506464570, now seen corresponding path program 134 times [2022-03-15 13:54:22,749 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:22,750 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932066943] [2022-03-15 13:54:22,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:22,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:22,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:22,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:22,847 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:22,848 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932066943] [2022-03-15 13:54:22,848 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932066943] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:22,848 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:22,848 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:22,848 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655651382] [2022-03-15 13:54:22,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:22,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:22,848 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:22,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:22,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:22,848 INFO L87 Difference]: Start difference. First operand 7369 states and 19504 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:23,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:23,279 INFO L93 Difference]: Finished difference Result 8537 states and 22556 transitions. [2022-03-15 13:54:23,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:54:23,279 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:23,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:23,289 INFO L225 Difference]: With dead ends: 8537 [2022-03-15 13:54:23,289 INFO L226 Difference]: Without dead ends: 8057 [2022-03-15 13:54:23,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=389, Invalid=1171, Unknown=0, NotChecked=0, Total=1560 [2022-03-15 13:54:23,290 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 227 mSDsluCounter, 2628 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 2843 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:23,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 2843 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:23,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8057 states. [2022-03-15 13:54:23,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8057 to 7365. [2022-03-15 13:54:23,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7365 states, 7364 states have (on average 2.6470668115154807) internal successors, (19493), 7364 states have internal predecessors, (19493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:23,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7365 states to 7365 states and 19493 transitions. [2022-03-15 13:54:23,402 INFO L78 Accepts]: Start accepts. Automaton has 7365 states and 19493 transitions. Word has length 109 [2022-03-15 13:54:23,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:23,402 INFO L470 AbstractCegarLoop]: Abstraction has 7365 states and 19493 transitions. [2022-03-15 13:54:23,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:23,403 INFO L276 IsEmpty]: Start isEmpty. Operand 7365 states and 19493 transitions. [2022-03-15 13:54:23,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:23,410 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:23,410 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:23,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable435 [2022-03-15 13:54:23,410 INFO L402 AbstractCegarLoop]: === Iteration 437 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:23,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:23,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1667445386, now seen corresponding path program 135 times [2022-03-15 13:54:23,411 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:23,411 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837384308] [2022-03-15 13:54:23,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:23,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:23,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:23,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:23,512 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:23,512 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837384308] [2022-03-15 13:54:23,512 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837384308] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:23,512 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:23,512 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:23,512 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536595637] [2022-03-15 13:54:23,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:23,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:23,513 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:23,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:23,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:23,513 INFO L87 Difference]: Start difference. First operand 7365 states and 19493 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:23,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:23,949 INFO L93 Difference]: Finished difference Result 8625 states and 22778 transitions. [2022-03-15 13:54:23,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-15 13:54:23,949 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:23,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:23,960 INFO L225 Difference]: With dead ends: 8625 [2022-03-15 13:54:23,961 INFO L226 Difference]: Without dead ends: 8105 [2022-03-15 13:54:23,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=500, Invalid=1392, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 13:54:23,961 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 306 mSDsluCounter, 1857 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 2083 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:23,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [306 Valid, 2083 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:23,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8105 states. [2022-03-15 13:54:24,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8105 to 7361. [2022-03-15 13:54:24,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7361 states, 7360 states have (on average 2.6470108695652175) internal successors, (19482), 7360 states have internal predecessors, (19482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:24,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7361 states to 7361 states and 19482 transitions. [2022-03-15 13:54:24,062 INFO L78 Accepts]: Start accepts. Automaton has 7361 states and 19482 transitions. Word has length 109 [2022-03-15 13:54:24,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:24,062 INFO L470 AbstractCegarLoop]: Abstraction has 7361 states and 19482 transitions. [2022-03-15 13:54:24,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:24,062 INFO L276 IsEmpty]: Start isEmpty. Operand 7361 states and 19482 transitions. [2022-03-15 13:54:24,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:24,070 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:24,070 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:24,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable436 [2022-03-15 13:54:24,070 INFO L402 AbstractCegarLoop]: === Iteration 438 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:24,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:24,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1740075110, now seen corresponding path program 136 times [2022-03-15 13:54:24,070 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:24,070 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080467439] [2022-03-15 13:54:24,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:24,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:24,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:24,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:24,169 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:24,169 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080467439] [2022-03-15 13:54:24,169 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080467439] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:24,170 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:24,170 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:24,170 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307602067] [2022-03-15 13:54:24,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:24,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:24,170 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:24,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:24,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:24,170 INFO L87 Difference]: Start difference. First operand 7361 states and 19482 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:24,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:24,662 INFO L93 Difference]: Finished difference Result 8739 states and 23078 transitions. [2022-03-15 13:54:24,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:54:24,662 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:24,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:24,673 INFO L225 Difference]: With dead ends: 8739 [2022-03-15 13:54:24,673 INFO L226 Difference]: Without dead ends: 8217 [2022-03-15 13:54:24,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=450, Invalid=1530, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 13:54:24,674 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 333 mSDsluCounter, 2312 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 2536 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:24,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [333 Valid, 2536 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:24,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8217 states. [2022-03-15 13:54:24,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8217 to 7365. [2022-03-15 13:54:24,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7365 states, 7364 states have (on average 2.6465236284627918) internal successors, (19489), 7364 states have internal predecessors, (19489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:24,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7365 states to 7365 states and 19489 transitions. [2022-03-15 13:54:24,773 INFO L78 Accepts]: Start accepts. Automaton has 7365 states and 19489 transitions. Word has length 109 [2022-03-15 13:54:24,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:24,773 INFO L470 AbstractCegarLoop]: Abstraction has 7365 states and 19489 transitions. [2022-03-15 13:54:24,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:24,773 INFO L276 IsEmpty]: Start isEmpty. Operand 7365 states and 19489 transitions. [2022-03-15 13:54:24,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:24,781 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:24,781 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:24,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable437 [2022-03-15 13:54:24,781 INFO L402 AbstractCegarLoop]: === Iteration 439 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:24,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:24,782 INFO L85 PathProgramCache]: Analyzing trace with hash 182159760, now seen corresponding path program 137 times [2022-03-15 13:54:24,782 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:24,782 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444968979] [2022-03-15 13:54:24,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:24,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:24,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:24,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:24,883 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:24,883 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444968979] [2022-03-15 13:54:24,883 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444968979] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:24,883 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:24,883 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:24,883 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718862604] [2022-03-15 13:54:24,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:24,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:24,883 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:24,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:24,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:24,883 INFO L87 Difference]: Start difference. First operand 7365 states and 19489 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:25,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:25,306 INFO L93 Difference]: Finished difference Result 8575 states and 22648 transitions. [2022-03-15 13:54:25,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:54:25,306 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:25,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:25,317 INFO L225 Difference]: With dead ends: 8575 [2022-03-15 13:54:25,317 INFO L226 Difference]: Without dead ends: 8096 [2022-03-15 13:54:25,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=330, Invalid=1076, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:54:25,318 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 253 mSDsluCounter, 2657 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 2873 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:25,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 2873 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:25,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8096 states. [2022-03-15 13:54:25,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8096 to 7369. [2022-03-15 13:54:25,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7369 states, 7368 states have (on average 2.6460369163952224) internal successors, (19496), 7368 states have internal predecessors, (19496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:25,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7369 states to 7369 states and 19496 transitions. [2022-03-15 13:54:25,407 INFO L78 Accepts]: Start accepts. Automaton has 7369 states and 19496 transitions. Word has length 109 [2022-03-15 13:54:25,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:25,407 INFO L470 AbstractCegarLoop]: Abstraction has 7369 states and 19496 transitions. [2022-03-15 13:54:25,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:25,408 INFO L276 IsEmpty]: Start isEmpty. Operand 7369 states and 19496 transitions. [2022-03-15 13:54:25,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:25,414 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:25,415 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:25,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable438 [2022-03-15 13:54:25,415 INFO L402 AbstractCegarLoop]: === Iteration 440 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:25,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:25,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1809682878, now seen corresponding path program 138 times [2022-03-15 13:54:25,415 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:25,415 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667749841] [2022-03-15 13:54:25,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:25,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:25,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:25,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:25,515 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:25,515 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667749841] [2022-03-15 13:54:25,515 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667749841] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:25,515 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:25,516 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:25,516 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582207508] [2022-03-15 13:54:25,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:25,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:25,516 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:25,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:25,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:25,516 INFO L87 Difference]: Start difference. First operand 7369 states and 19496 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:25,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:25,943 INFO L93 Difference]: Finished difference Result 8509 states and 22471 transitions. [2022-03-15 13:54:25,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:54:25,944 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:25,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:25,955 INFO L225 Difference]: With dead ends: 8509 [2022-03-15 13:54:25,955 INFO L226 Difference]: Without dead ends: 8021 [2022-03-15 13:54:25,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=369, Invalid=1113, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:54:25,956 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 232 mSDsluCounter, 2817 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 3027 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:25,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 3027 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:25,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8021 states. [2022-03-15 13:54:26,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8021 to 7357. [2022-03-15 13:54:26,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7357 states, 7356 states have (on average 2.6469548667754212) internal successors, (19471), 7356 states have internal predecessors, (19471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:26,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7357 states to 7357 states and 19471 transitions. [2022-03-15 13:54:26,046 INFO L78 Accepts]: Start accepts. Automaton has 7357 states and 19471 transitions. Word has length 109 [2022-03-15 13:54:26,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:26,046 INFO L470 AbstractCegarLoop]: Abstraction has 7357 states and 19471 transitions. [2022-03-15 13:54:26,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:26,047 INFO L276 IsEmpty]: Start isEmpty. Operand 7357 states and 19471 transitions. [2022-03-15 13:54:26,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:26,054 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:26,054 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:26,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable439 [2022-03-15 13:54:26,054 INFO L402 AbstractCegarLoop]: === Iteration 441 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:26,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:26,054 INFO L85 PathProgramCache]: Analyzing trace with hash 527338778, now seen corresponding path program 139 times [2022-03-15 13:54:26,054 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:26,055 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505600362] [2022-03-15 13:54:26,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:26,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:26,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:26,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:26,158 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:26,158 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505600362] [2022-03-15 13:54:26,158 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505600362] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:26,158 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:26,158 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:26,159 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410359531] [2022-03-15 13:54:26,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:26,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:26,159 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:26,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:26,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:26,159 INFO L87 Difference]: Start difference. First operand 7357 states and 19471 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:26,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:26,789 INFO L93 Difference]: Finished difference Result 8872 states and 23425 transitions. [2022-03-15 13:54:26,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-15 13:54:26,789 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:26,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:26,798 INFO L225 Difference]: With dead ends: 8872 [2022-03-15 13:54:26,798 INFO L226 Difference]: Without dead ends: 8307 [2022-03-15 13:54:26,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 761 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=628, Invalid=2128, Unknown=0, NotChecked=0, Total=2756 [2022-03-15 13:54:26,799 INFO L933 BasicCegarLoop]: 294 mSDtfsCounter, 401 mSDsluCounter, 2632 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 2849 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:26,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [401 Valid, 2849 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:26,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8307 states. [2022-03-15 13:54:26,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8307 to 7361. [2022-03-15 13:54:26,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7361 states, 7360 states have (on average 2.646467391304348) internal successors, (19478), 7360 states have internal predecessors, (19478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:26,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7361 states to 7361 states and 19478 transitions. [2022-03-15 13:54:26,884 INFO L78 Accepts]: Start accepts. Automaton has 7361 states and 19478 transitions. Word has length 109 [2022-03-15 13:54:26,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:26,884 INFO L470 AbstractCegarLoop]: Abstraction has 7361 states and 19478 transitions. [2022-03-15 13:54:26,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:26,884 INFO L276 IsEmpty]: Start isEmpty. Operand 7361 states and 19478 transitions. [2022-03-15 13:54:26,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:26,892 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:26,892 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:26,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable440 [2022-03-15 13:54:26,892 INFO L402 AbstractCegarLoop]: === Iteration 442 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:26,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:26,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1391769840, now seen corresponding path program 140 times [2022-03-15 13:54:26,892 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:26,892 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247950148] [2022-03-15 13:54:26,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:26,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:26,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:26,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:26,994 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:26,994 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247950148] [2022-03-15 13:54:26,994 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247950148] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:26,994 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:26,994 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:26,995 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214298319] [2022-03-15 13:54:26,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:26,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:26,995 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:26,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:26,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:26,995 INFO L87 Difference]: Start difference. First operand 7361 states and 19478 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:27,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:27,510 INFO L93 Difference]: Finished difference Result 8747 states and 23096 transitions. [2022-03-15 13:54:27,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:54:27,510 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:27,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:27,519 INFO L225 Difference]: With dead ends: 8747 [2022-03-15 13:54:27,520 INFO L226 Difference]: Without dead ends: 8225 [2022-03-15 13:54:27,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=462, Invalid=1608, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:54:27,520 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 331 mSDsluCounter, 2318 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 2543 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:27,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [331 Valid, 2543 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:27,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8225 states. [2022-03-15 13:54:27,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8225 to 7365. [2022-03-15 13:54:27,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7365 states, 7364 states have (on average 2.6459804454101032) internal successors, (19485), 7364 states have internal predecessors, (19485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:27,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7365 states to 7365 states and 19485 transitions. [2022-03-15 13:54:27,606 INFO L78 Accepts]: Start accepts. Automaton has 7365 states and 19485 transitions. Word has length 109 [2022-03-15 13:54:27,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:27,606 INFO L470 AbstractCegarLoop]: Abstraction has 7365 states and 19485 transitions. [2022-03-15 13:54:27,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:27,606 INFO L276 IsEmpty]: Start isEmpty. Operand 7365 states and 19485 transitions. [2022-03-15 13:54:27,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:27,614 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:27,614 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:27,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable441 [2022-03-15 13:54:27,614 INFO L402 AbstractCegarLoop]: === Iteration 443 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:27,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:27,614 INFO L85 PathProgramCache]: Analyzing trace with hash -166145510, now seen corresponding path program 141 times [2022-03-15 13:54:27,614 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:27,614 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826053335] [2022-03-15 13:54:27,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:27,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:27,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:27,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:27,717 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:27,717 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826053335] [2022-03-15 13:54:27,717 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826053335] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:27,717 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:27,717 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:27,717 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445092747] [2022-03-15 13:54:27,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:27,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:27,717 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:27,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:27,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:27,718 INFO L87 Difference]: Start difference. First operand 7365 states and 19485 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:28,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:28,104 INFO L93 Difference]: Finished difference Result 8583 states and 22666 transitions. [2022-03-15 13:54:28,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:54:28,105 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:28,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:28,114 INFO L225 Difference]: With dead ends: 8583 [2022-03-15 13:54:28,114 INFO L226 Difference]: Without dead ends: 8104 [2022-03-15 13:54:28,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=324, Invalid=1082, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:54:28,114 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 255 mSDsluCounter, 1993 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 2221 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:28,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 2221 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:28,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8104 states. [2022-03-15 13:54:28,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8104 to 7369. [2022-03-15 13:54:28,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7369 states, 7368 states have (on average 2.6454940282301846) internal successors, (19492), 7368 states have internal predecessors, (19492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:28,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7369 states to 7369 states and 19492 transitions. [2022-03-15 13:54:28,198 INFO L78 Accepts]: Start accepts. Automaton has 7369 states and 19492 transitions. Word has length 109 [2022-03-15 13:54:28,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:28,198 INFO L470 AbstractCegarLoop]: Abstraction has 7369 states and 19492 transitions. [2022-03-15 13:54:28,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:28,199 INFO L276 IsEmpty]: Start isEmpty. Operand 7369 states and 19492 transitions. [2022-03-15 13:54:28,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:28,206 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:28,206 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:28,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable442 [2022-03-15 13:54:28,206 INFO L402 AbstractCegarLoop]: === Iteration 444 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:28,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:28,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1461377608, now seen corresponding path program 142 times [2022-03-15 13:54:28,206 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:28,206 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637561944] [2022-03-15 13:54:28,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:28,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:28,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:28,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:28,308 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:28,308 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637561944] [2022-03-15 13:54:28,308 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637561944] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:28,308 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:28,308 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:28,308 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109511643] [2022-03-15 13:54:28,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:28,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:28,308 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:28,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:28,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:28,308 INFO L87 Difference]: Start difference. First operand 7369 states and 19492 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:28,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:28,699 INFO L93 Difference]: Finished difference Result 8509 states and 22467 transitions. [2022-03-15 13:54:28,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:54:28,700 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:28,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:28,709 INFO L225 Difference]: With dead ends: 8509 [2022-03-15 13:54:28,709 INFO L226 Difference]: Without dead ends: 8017 [2022-03-15 13:54:28,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=351, Invalid=1055, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:54:28,709 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 233 mSDsluCounter, 2616 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 2826 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:28,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 2826 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:28,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8017 states. [2022-03-15 13:54:28,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8017 to 7353. [2022-03-15 13:54:28,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7353 states, 7352 states have (on average 2.64689880304679) internal successors, (19460), 7352 states have internal predecessors, (19460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:28,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7353 states to 7353 states and 19460 transitions. [2022-03-15 13:54:28,815 INFO L78 Accepts]: Start accepts. Automaton has 7353 states and 19460 transitions. Word has length 109 [2022-03-15 13:54:28,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:28,815 INFO L470 AbstractCegarLoop]: Abstraction has 7353 states and 19460 transitions. [2022-03-15 13:54:28,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:28,815 INFO L276 IsEmpty]: Start isEmpty. Operand 7353 states and 19460 transitions. [2022-03-15 13:54:28,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:28,822 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:28,822 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:28,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable443 [2022-03-15 13:54:28,822 INFO L402 AbstractCegarLoop]: === Iteration 445 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:28,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:28,823 INFO L85 PathProgramCache]: Analyzing trace with hash 879815300, now seen corresponding path program 143 times [2022-03-15 13:54:28,823 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:28,823 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467136817] [2022-03-15 13:54:28,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:28,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:28,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:28,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:28,922 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:28,922 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467136817] [2022-03-15 13:54:28,922 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467136817] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:28,922 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:28,922 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:28,922 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963306028] [2022-03-15 13:54:28,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:28,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:28,923 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:28,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:28,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:28,923 INFO L87 Difference]: Start difference. First operand 7353 states and 19460 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:29,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:29,602 INFO L93 Difference]: Finished difference Result 8861 states and 23376 transitions. [2022-03-15 13:54:29,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-15 13:54:29,603 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:29,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:29,612 INFO L225 Difference]: With dead ends: 8861 [2022-03-15 13:54:29,612 INFO L226 Difference]: Without dead ends: 8253 [2022-03-15 13:54:29,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1086 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=849, Invalid=2933, Unknown=0, NotChecked=0, Total=3782 [2022-03-15 13:54:29,613 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 476 mSDsluCounter, 3078 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 3286 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:29,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [476 Valid, 3286 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:29,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8253 states. [2022-03-15 13:54:29,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8253 to 7357. [2022-03-15 13:54:29,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7357 states, 7356 states have (on average 2.646411092985318) internal successors, (19467), 7356 states have internal predecessors, (19467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:29,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7357 states to 7357 states and 19467 transitions. [2022-03-15 13:54:29,699 INFO L78 Accepts]: Start accepts. Automaton has 7357 states and 19467 transitions. Word has length 109 [2022-03-15 13:54:29,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:29,699 INFO L470 AbstractCegarLoop]: Abstraction has 7357 states and 19467 transitions. [2022-03-15 13:54:29,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:29,700 INFO L276 IsEmpty]: Start isEmpty. Operand 7357 states and 19467 transitions. [2022-03-15 13:54:29,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:29,706 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:29,706 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:29,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable444 [2022-03-15 13:54:29,707 INFO L402 AbstractCegarLoop]: === Iteration 446 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:29,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:29,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1390656440, now seen corresponding path program 144 times [2022-03-15 13:54:29,707 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:29,707 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134821767] [2022-03-15 13:54:29,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:29,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:29,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:29,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:29,810 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:29,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134821767] [2022-03-15 13:54:29,810 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134821767] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:29,810 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:29,810 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:29,811 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233629130] [2022-03-15 13:54:29,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:29,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:29,811 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:29,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:29,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:29,811 INFO L87 Difference]: Start difference. First operand 7357 states and 19467 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:30,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:30,453 INFO L93 Difference]: Finished difference Result 8744 states and 23069 transitions. [2022-03-15 13:54:30,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-15 13:54:30,453 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:30,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:30,463 INFO L225 Difference]: With dead ends: 8744 [2022-03-15 13:54:30,463 INFO L226 Difference]: Without dead ends: 8179 [2022-03-15 13:54:30,464 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 775 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=634, Invalid=2228, Unknown=0, NotChecked=0, Total=2862 [2022-03-15 13:54:30,464 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 394 mSDsluCounter, 2566 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 2790 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:30,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [394 Valid, 2790 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:30,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8179 states. [2022-03-15 13:54:30,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8179 to 7361. [2022-03-15 13:54:30,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7361 states, 7360 states have (on average 2.6459239130434784) internal successors, (19474), 7360 states have internal predecessors, (19474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:30,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7361 states to 7361 states and 19474 transitions. [2022-03-15 13:54:30,568 INFO L78 Accepts]: Start accepts. Automaton has 7361 states and 19474 transitions. Word has length 109 [2022-03-15 13:54:30,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:30,568 INFO L470 AbstractCegarLoop]: Abstraction has 7361 states and 19474 transitions. [2022-03-15 13:54:30,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:30,568 INFO L276 IsEmpty]: Start isEmpty. Operand 7361 states and 19474 transitions. [2022-03-15 13:54:30,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:30,576 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:30,576 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:30,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable445 [2022-03-15 13:54:30,576 INFO L402 AbstractCegarLoop]: === Iteration 447 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:30,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:30,577 INFO L85 PathProgramCache]: Analyzing trace with hash -526225378, now seen corresponding path program 145 times [2022-03-15 13:54:30,577 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:30,577 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362916939] [2022-03-15 13:54:30,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:30,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:30,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:30,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:30,680 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:30,680 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362916939] [2022-03-15 13:54:30,680 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362916939] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:30,680 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:30,680 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:30,680 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633473204] [2022-03-15 13:54:30,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:30,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:30,680 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:30,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:30,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:30,681 INFO L87 Difference]: Start difference. First operand 7361 states and 19474 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:31,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:31,176 INFO L93 Difference]: Finished difference Result 8627 states and 22762 transitions. [2022-03-15 13:54:31,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:54:31,176 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:31,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:31,185 INFO L225 Difference]: With dead ends: 8627 [2022-03-15 13:54:31,185 INFO L226 Difference]: Without dead ends: 8105 [2022-03-15 13:54:31,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=451, Invalid=1619, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:54:31,186 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 322 mSDsluCounter, 2485 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 2705 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:31,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [322 Valid, 2705 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:31,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8105 states. [2022-03-15 13:54:31,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8105 to 7365. [2022-03-15 13:54:31,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7365 states, 7364 states have (on average 2.6454372623574143) internal successors, (19481), 7364 states have internal predecessors, (19481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:31,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7365 states to 7365 states and 19481 transitions. [2022-03-15 13:54:31,269 INFO L78 Accepts]: Start accepts. Automaton has 7365 states and 19481 transitions. Word has length 109 [2022-03-15 13:54:31,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:31,269 INFO L470 AbstractCegarLoop]: Abstraction has 7365 states and 19481 transitions. [2022-03-15 13:54:31,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:31,269 INFO L276 IsEmpty]: Start isEmpty. Operand 7365 states and 19481 transitions. [2022-03-15 13:54:31,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:31,276 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:31,276 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:31,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable446 [2022-03-15 13:54:31,277 INFO L402 AbstractCegarLoop]: === Iteration 448 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:31,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:31,277 INFO L85 PathProgramCache]: Analyzing trace with hash -2084140728, now seen corresponding path program 146 times [2022-03-15 13:54:31,277 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:31,277 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248940036] [2022-03-15 13:54:31,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:31,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:31,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:31,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:31,381 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:31,381 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248940036] [2022-03-15 13:54:31,381 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248940036] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:31,381 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:31,381 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:31,381 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237288390] [2022-03-15 13:54:31,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:31,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:31,381 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:31,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:31,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:31,381 INFO L87 Difference]: Start difference. First operand 7365 states and 19481 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:31,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:31,759 INFO L93 Difference]: Finished difference Result 8479 states and 22376 transitions. [2022-03-15 13:54:31,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:54:31,759 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:31,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:31,769 INFO L225 Difference]: With dead ends: 8479 [2022-03-15 13:54:31,769 INFO L226 Difference]: Without dead ends: 8000 [2022-03-15 13:54:31,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=318, Invalid=1088, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:54:31,769 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 251 mSDsluCounter, 2184 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 2405 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:31,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 2405 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:31,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8000 states. [2022-03-15 13:54:31,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8000 to 7369. [2022-03-15 13:54:31,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7369 states, 7368 states have (on average 2.6449511400651464) internal successors, (19488), 7368 states have internal predecessors, (19488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:31,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7369 states to 7369 states and 19488 transitions. [2022-03-15 13:54:31,854 INFO L78 Accepts]: Start accepts. Automaton has 7369 states and 19488 transitions. Word has length 109 [2022-03-15 13:54:31,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:31,854 INFO L470 AbstractCegarLoop]: Abstraction has 7369 states and 19488 transitions. [2022-03-15 13:54:31,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:31,854 INFO L276 IsEmpty]: Start isEmpty. Operand 7369 states and 19488 transitions. [2022-03-15 13:54:31,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:31,861 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:31,861 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:31,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable447 [2022-03-15 13:54:31,862 INFO L402 AbstractCegarLoop]: === Iteration 449 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:31,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:31,862 INFO L85 PathProgramCache]: Analyzing trace with hash -456617610, now seen corresponding path program 147 times [2022-03-15 13:54:31,862 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:31,862 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749086989] [2022-03-15 13:54:31,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:31,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:31,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:31,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:31,967 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:31,967 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749086989] [2022-03-15 13:54:31,967 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749086989] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:31,967 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:31,967 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:31,967 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591519903] [2022-03-15 13:54:31,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:31,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:31,967 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:31,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:31,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:31,967 INFO L87 Difference]: Start difference. First operand 7369 states and 19488 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:32,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:32,334 INFO L93 Difference]: Finished difference Result 8365 states and 22067 transitions. [2022-03-15 13:54:32,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-15 13:54:32,334 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:32,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:32,343 INFO L225 Difference]: With dead ends: 8365 [2022-03-15 13:54:32,343 INFO L226 Difference]: Without dead ends: 7843 [2022-03-15 13:54:32,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=332, Invalid=928, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:54:32,343 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 220 mSDsluCounter, 2127 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 2346 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:32,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 2346 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:32,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7843 states. [2022-03-15 13:54:32,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7843 to 7323. [2022-03-15 13:54:32,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7323 states, 7322 states have (on average 2.647637257579896) internal successors, (19386), 7322 states have internal predecessors, (19386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:32,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7323 states to 7323 states and 19386 transitions. [2022-03-15 13:54:32,426 INFO L78 Accepts]: Start accepts. Automaton has 7323 states and 19386 transitions. Word has length 109 [2022-03-15 13:54:32,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:32,426 INFO L470 AbstractCegarLoop]: Abstraction has 7323 states and 19386 transitions. [2022-03-15 13:54:32,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:32,426 INFO L276 IsEmpty]: Start isEmpty. Operand 7323 states and 19386 transitions. [2022-03-15 13:54:32,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:32,433 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:32,433 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:32,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable448 [2022-03-15 13:54:32,433 INFO L402 AbstractCegarLoop]: === Iteration 450 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:32,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:32,433 INFO L85 PathProgramCache]: Analyzing trace with hash -993153118, now seen corresponding path program 148 times [2022-03-15 13:54:32,434 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:32,434 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690030952] [2022-03-15 13:54:32,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:32,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:32,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:32,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:32,535 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:32,535 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690030952] [2022-03-15 13:54:32,535 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690030952] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:32,535 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:32,535 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:32,535 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314456316] [2022-03-15 13:54:32,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:32,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:32,535 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:32,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:32,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:32,536 INFO L87 Difference]: Start difference. First operand 7323 states and 19386 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:32,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:32,888 INFO L93 Difference]: Finished difference Result 8633 states and 22820 transitions. [2022-03-15 13:54:32,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:54:32,888 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:32,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:32,898 INFO L225 Difference]: With dead ends: 8633 [2022-03-15 13:54:32,898 INFO L226 Difference]: Without dead ends: 8154 [2022-03-15 13:54:32,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=310, Invalid=950, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:54:32,899 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 229 mSDsluCounter, 1733 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 1949 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:32,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 1949 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:32,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8154 states. [2022-03-15 13:54:32,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8154 to 7347. [2022-03-15 13:54:32,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6474271712496598) internal successors, (19448), 7346 states have internal predecessors, (19448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:32,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19448 transitions. [2022-03-15 13:54:32,986 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19448 transitions. Word has length 109 [2022-03-15 13:54:32,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:32,986 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19448 transitions. [2022-03-15 13:54:32,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:32,986 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19448 transitions. [2022-03-15 13:54:32,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:32,993 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:32,994 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:32,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable449 [2022-03-15 13:54:32,994 INFO L402 AbstractCegarLoop]: === Iteration 451 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:32,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:32,994 INFO L85 PathProgramCache]: Analyzing trace with hash 634370000, now seen corresponding path program 149 times [2022-03-15 13:54:32,994 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:32,994 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622437691] [2022-03-15 13:54:32,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:32,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:33,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:33,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:33,092 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:33,092 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622437691] [2022-03-15 13:54:33,092 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622437691] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:33,092 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:33,092 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:33,092 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693459598] [2022-03-15 13:54:33,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:33,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:33,092 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:33,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:33,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:33,093 INFO L87 Difference]: Start difference. First operand 7347 states and 19448 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:33,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:33,512 INFO L93 Difference]: Finished difference Result 8599 states and 22731 transitions. [2022-03-15 13:54:33,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:54:33,513 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:33,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:33,523 INFO L225 Difference]: With dead ends: 8599 [2022-03-15 13:54:33,523 INFO L226 Difference]: Without dead ends: 8119 [2022-03-15 13:54:33,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=369, Invalid=1191, Unknown=0, NotChecked=0, Total=1560 [2022-03-15 13:54:33,523 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 210 mSDsluCounter, 2521 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 2727 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:33,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 2727 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:33,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8119 states. [2022-03-15 13:54:33,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8119 to 7343. [2022-03-15 13:54:33,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.6473712884772542) internal successors, (19437), 7342 states have internal predecessors, (19437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:33,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19437 transitions. [2022-03-15 13:54:33,624 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19437 transitions. Word has length 109 [2022-03-15 13:54:33,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:33,624 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19437 transitions. [2022-03-15 13:54:33,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:33,624 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19437 transitions. [2022-03-15 13:54:33,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:33,632 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:33,632 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:33,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable450 [2022-03-15 13:54:33,632 INFO L402 AbstractCegarLoop]: === Iteration 452 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:33,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:33,633 INFO L85 PathProgramCache]: Analyzing trace with hash -486687340, now seen corresponding path program 150 times [2022-03-15 13:54:33,633 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:33,633 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896953941] [2022-03-15 13:54:33,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:33,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:33,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:33,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:33,736 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:33,736 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896953941] [2022-03-15 13:54:33,736 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896953941] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:33,736 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:33,736 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:33,736 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398980816] [2022-03-15 13:54:33,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:33,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:33,736 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:33,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:33,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:33,737 INFO L87 Difference]: Start difference. First operand 7343 states and 19437 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:34,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:34,256 INFO L93 Difference]: Finished difference Result 8635 states and 22826 transitions. [2022-03-15 13:54:34,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:54:34,257 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:34,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:34,267 INFO L225 Difference]: With dead ends: 8635 [2022-03-15 13:54:34,267 INFO L226 Difference]: Without dead ends: 8115 [2022-03-15 13:54:34,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=545, Invalid=1711, Unknown=0, NotChecked=0, Total=2256 [2022-03-15 13:54:34,267 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 284 mSDsluCounter, 2094 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 2315 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:34,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [284 Valid, 2315 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:34,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8115 states. [2022-03-15 13:54:34,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8115 to 7339. [2022-03-15 13:54:34,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7339 states, 7338 states have (on average 2.647315344780594) internal successors, (19426), 7338 states have internal predecessors, (19426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:34,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 19426 transitions. [2022-03-15 13:54:34,375 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 19426 transitions. Word has length 109 [2022-03-15 13:54:34,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:34,375 INFO L470 AbstractCegarLoop]: Abstraction has 7339 states and 19426 transitions. [2022-03-15 13:54:34,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:34,375 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 19426 transitions. [2022-03-15 13:54:34,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:34,383 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:34,383 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:34,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable451 [2022-03-15 13:54:34,383 INFO L402 AbstractCegarLoop]: === Iteration 453 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:34,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:34,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1011822876, now seen corresponding path program 151 times [2022-03-15 13:54:34,383 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:34,383 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450411631] [2022-03-15 13:54:34,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:34,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:34,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:34,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:34,479 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:34,479 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450411631] [2022-03-15 13:54:34,479 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450411631] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:34,479 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:34,479 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:34,480 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515327503] [2022-03-15 13:54:34,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:34,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:34,480 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:34,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:34,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:34,480 INFO L87 Difference]: Start difference. First operand 7339 states and 19426 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:35,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:35,037 INFO L93 Difference]: Finished difference Result 8751 states and 23117 transitions. [2022-03-15 13:54:35,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-15 13:54:35,037 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:35,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:35,047 INFO L225 Difference]: With dead ends: 8751 [2022-03-15 13:54:35,047 INFO L226 Difference]: Without dead ends: 8191 [2022-03-15 13:54:35,048 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=684, Invalid=1968, Unknown=0, NotChecked=0, Total=2652 [2022-03-15 13:54:35,048 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 336 mSDsluCounter, 2587 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 2796 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:35,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 2796 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:35,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8191 states. [2022-03-15 13:54:35,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8191 to 7335. [2022-03-15 13:54:35,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7335 states, 7334 states have (on average 2.6472593400599944) internal successors, (19415), 7334 states have internal predecessors, (19415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:35,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7335 states to 7335 states and 19415 transitions. [2022-03-15 13:54:35,136 INFO L78 Accepts]: Start accepts. Automaton has 7335 states and 19415 transitions. Word has length 109 [2022-03-15 13:54:35,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:35,137 INFO L470 AbstractCegarLoop]: Abstraction has 7335 states and 19415 transitions. [2022-03-15 13:54:35,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:35,137 INFO L276 IsEmpty]: Start isEmpty. Operand 7335 states and 19415 transitions. [2022-03-15 13:54:35,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:35,144 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:35,144 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:35,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable452 [2022-03-15 13:54:35,144 INFO L402 AbstractCegarLoop]: === Iteration 454 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:35,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:35,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1202136280, now seen corresponding path program 152 times [2022-03-15 13:54:35,144 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:35,144 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142799939] [2022-03-15 13:54:35,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:35,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:35,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:35,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:35,249 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:35,249 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142799939] [2022-03-15 13:54:35,249 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142799939] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:35,249 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:35,249 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:35,249 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463022380] [2022-03-15 13:54:35,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:35,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:35,249 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:35,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:35,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:35,250 INFO L87 Difference]: Start difference. First operand 7335 states and 19415 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:35,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:35,629 INFO L93 Difference]: Finished difference Result 8701 states and 23003 transitions. [2022-03-15 13:54:35,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:54:35,630 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:35,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:35,639 INFO L225 Difference]: With dead ends: 8701 [2022-03-15 13:54:35,640 INFO L226 Difference]: Without dead ends: 8222 [2022-03-15 13:54:35,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=1006, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:54:35,640 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 241 mSDsluCounter, 2108 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 2321 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:35,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 2321 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:35,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8222 states. [2022-03-15 13:54:35,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8222 to 7347. [2022-03-15 13:54:35,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6468826572284234) internal successors, (19444), 7346 states have internal predecessors, (19444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:35,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19444 transitions. [2022-03-15 13:54:35,731 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19444 transitions. Word has length 109 [2022-03-15 13:54:35,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:35,731 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19444 transitions. [2022-03-15 13:54:35,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:35,731 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19444 transitions. [2022-03-15 13:54:35,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:35,739 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:35,739 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:35,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable453 [2022-03-15 13:54:35,739 INFO L402 AbstractCegarLoop]: === Iteration 455 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:35,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:35,739 INFO L85 PathProgramCache]: Analyzing trace with hash 425386838, now seen corresponding path program 153 times [2022-03-15 13:54:35,739 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:35,739 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235633511] [2022-03-15 13:54:35,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:35,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:35,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:35,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:35,842 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:35,842 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235633511] [2022-03-15 13:54:35,842 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235633511] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:35,842 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:35,842 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:35,842 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794121986] [2022-03-15 13:54:35,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:35,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:35,843 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:35,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:35,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:35,843 INFO L87 Difference]: Start difference. First operand 7347 states and 19444 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:36,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:36,313 INFO L93 Difference]: Finished difference Result 8659 states and 22892 transitions. [2022-03-15 13:54:36,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:54:36,314 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:36,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:36,324 INFO L225 Difference]: With dead ends: 8659 [2022-03-15 13:54:36,324 INFO L226 Difference]: Without dead ends: 8179 [2022-03-15 13:54:36,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=370, Invalid=1112, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:54:36,324 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 227 mSDsluCounter, 2371 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 2584 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:36,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 2584 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:36,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8179 states. [2022-03-15 13:54:36,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8179 to 7343. [2022-03-15 13:54:36,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.6468264777989647) internal successors, (19433), 7342 states have internal predecessors, (19433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:36,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19433 transitions. [2022-03-15 13:54:36,413 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19433 transitions. Word has length 109 [2022-03-15 13:54:36,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:36,413 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19433 transitions. [2022-03-15 13:54:36,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:36,413 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19433 transitions. [2022-03-15 13:54:36,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:36,421 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:36,421 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:36,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable454 [2022-03-15 13:54:36,421 INFO L402 AbstractCegarLoop]: === Iteration 456 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:36,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:36,421 INFO L85 PathProgramCache]: Analyzing trace with hash -695670502, now seen corresponding path program 154 times [2022-03-15 13:54:36,421 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:36,421 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815568453] [2022-03-15 13:54:36,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:36,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:36,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:36,534 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:36,534 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815568453] [2022-03-15 13:54:36,535 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815568453] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:36,535 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:36,535 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:36,535 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018975128] [2022-03-15 13:54:36,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:36,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:36,535 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:36,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:36,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:36,535 INFO L87 Difference]: Start difference. First operand 7343 states and 19433 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:37,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:37,083 INFO L93 Difference]: Finished difference Result 8787 states and 23224 transitions. [2022-03-15 13:54:37,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:54:37,083 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:37,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:37,092 INFO L225 Difference]: With dead ends: 8787 [2022-03-15 13:54:37,093 INFO L226 Difference]: Without dead ends: 8267 [2022-03-15 13:54:37,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=531, Invalid=1631, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 13:54:37,093 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 298 mSDsluCounter, 2417 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 2631 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:37,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 2631 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:37,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8267 states. [2022-03-15 13:54:37,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8267 to 7339. [2022-03-15 13:54:37,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7339 states, 7338 states have (on average 2.6467702371218316) internal successors, (19422), 7338 states have internal predecessors, (19422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:37,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 19422 transitions. [2022-03-15 13:54:37,178 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 19422 transitions. Word has length 109 [2022-03-15 13:54:37,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:37,178 INFO L470 AbstractCegarLoop]: Abstraction has 7339 states and 19422 transitions. [2022-03-15 13:54:37,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:37,179 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 19422 transitions. [2022-03-15 13:54:37,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:37,186 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:37,186 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:37,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable455 [2022-03-15 13:54:37,186 INFO L402 AbstractCegarLoop]: === Iteration 457 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:37,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:37,186 INFO L85 PathProgramCache]: Analyzing trace with hash -623040778, now seen corresponding path program 155 times [2022-03-15 13:54:37,186 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:37,187 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492841782] [2022-03-15 13:54:37,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:37,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:37,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:37,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:37,292 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:37,292 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492841782] [2022-03-15 13:54:37,292 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492841782] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:37,292 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:37,292 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:37,292 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266293410] [2022-03-15 13:54:37,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:37,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:37,292 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:37,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:37,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:37,292 INFO L87 Difference]: Start difference. First operand 7339 states and 19422 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:37,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:37,781 INFO L93 Difference]: Finished difference Result 8789 states and 23216 transitions. [2022-03-15 13:54:37,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-15 13:54:37,782 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:37,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:37,791 INFO L225 Difference]: With dead ends: 8789 [2022-03-15 13:54:37,791 INFO L226 Difference]: Without dead ends: 8267 [2022-03-15 13:54:37,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=458, Invalid=1434, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 13:54:37,791 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 300 mSDsluCounter, 2181 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 2396 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:37,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 2396 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:37,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8267 states. [2022-03-15 13:54:37,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8267 to 7343. [2022-03-15 13:54:37,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.6462816671206757) internal successors, (19429), 7342 states have internal predecessors, (19429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:37,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19429 transitions. [2022-03-15 13:54:37,875 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19429 transitions. Word has length 109 [2022-03-15 13:54:37,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:37,875 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19429 transitions. [2022-03-15 13:54:37,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:37,875 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19429 transitions. [2022-03-15 13:54:37,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:37,882 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:37,883 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:37,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable456 [2022-03-15 13:54:37,883 INFO L402 AbstractCegarLoop]: === Iteration 458 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:37,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:37,883 INFO L85 PathProgramCache]: Analyzing trace with hash 2114011168, now seen corresponding path program 156 times [2022-03-15 13:54:37,883 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:37,883 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203211147] [2022-03-15 13:54:37,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:37,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:37,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:37,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:37,986 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:37,986 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203211147] [2022-03-15 13:54:37,987 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203211147] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:37,987 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:37,987 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:37,987 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959129312] [2022-03-15 13:54:37,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:37,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:37,987 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:37,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:37,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:37,987 INFO L87 Difference]: Start difference. First operand 7343 states and 19429 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:38,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:38,396 INFO L93 Difference]: Finished difference Result 8641 states and 22830 transitions. [2022-03-15 13:54:38,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:54:38,396 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:38,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:38,406 INFO L225 Difference]: With dead ends: 8641 [2022-03-15 13:54:38,406 INFO L226 Difference]: Without dead ends: 8162 [2022-03-15 13:54:38,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=345, Invalid=1061, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:54:38,406 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 233 mSDsluCounter, 2163 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 2377 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:38,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 2377 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:38,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8162 states. [2022-03-15 13:54:38,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8162 to 7347. [2022-03-15 13:54:38,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6457936291859516) internal successors, (19436), 7346 states have internal predecessors, (19436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:38,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19436 transitions. [2022-03-15 13:54:38,498 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19436 transitions. Word has length 109 [2022-03-15 13:54:38,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:38,498 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19436 transitions. [2022-03-15 13:54:38,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:38,499 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19436 transitions. [2022-03-15 13:54:38,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:38,506 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:38,506 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:38,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable457 [2022-03-15 13:54:38,506 INFO L402 AbstractCegarLoop]: === Iteration 459 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:38,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:38,507 INFO L85 PathProgramCache]: Analyzing trace with hash -553433010, now seen corresponding path program 157 times [2022-03-15 13:54:38,507 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:38,507 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759956237] [2022-03-15 13:54:38,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:38,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:38,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:38,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:38,616 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:38,616 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759956237] [2022-03-15 13:54:38,616 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759956237] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:38,616 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:38,616 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:38,616 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511275724] [2022-03-15 13:54:38,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:38,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:38,616 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:38,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:38,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:38,617 INFO L87 Difference]: Start difference. First operand 7347 states and 19436 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:39,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:39,016 INFO L93 Difference]: Finished difference Result 8559 states and 22609 transitions. [2022-03-15 13:54:39,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:54:39,017 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:39,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:39,026 INFO L225 Difference]: With dead ends: 8559 [2022-03-15 13:54:39,026 INFO L226 Difference]: Without dead ends: 8067 [2022-03-15 13:54:39,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=354, Invalid=1128, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:54:39,027 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 219 mSDsluCounter, 2182 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 2395 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:39,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 2395 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:39,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8067 states. [2022-03-15 13:54:39,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8067 to 7331. [2022-03-15 13:54:39,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7331 states, 7330 states have (on average 2.6472032742155527) internal successors, (19404), 7330 states have internal predecessors, (19404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:39,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7331 states to 7331 states and 19404 transitions. [2022-03-15 13:54:39,114 INFO L78 Accepts]: Start accepts. Automaton has 7331 states and 19404 transitions. Word has length 109 [2022-03-15 13:54:39,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:39,114 INFO L470 AbstractCegarLoop]: Abstraction has 7331 states and 19404 transitions. [2022-03-15 13:54:39,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:39,114 INFO L276 IsEmpty]: Start isEmpty. Operand 7331 states and 19404 transitions. [2022-03-15 13:54:39,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:39,121 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:39,121 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:39,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable458 [2022-03-15 13:54:39,122 INFO L402 AbstractCegarLoop]: === Iteration 460 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:39,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:39,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1250172384, now seen corresponding path program 158 times [2022-03-15 13:54:39,122 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:39,122 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692152399] [2022-03-15 13:54:39,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:39,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:39,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:39,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:39,229 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:39,229 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692152399] [2022-03-15 13:54:39,229 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692152399] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:39,229 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:39,229 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:39,229 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522908219] [2022-03-15 13:54:39,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:39,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:39,230 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:39,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:39,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:39,230 INFO L87 Difference]: Start difference. First operand 7331 states and 19404 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:39,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:39,631 INFO L93 Difference]: Finished difference Result 8737 states and 23102 transitions. [2022-03-15 13:54:39,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:54:39,631 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:39,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:39,641 INFO L225 Difference]: With dead ends: 8737 [2022-03-15 13:54:39,641 INFO L226 Difference]: Without dead ends: 8258 [2022-03-15 13:54:39,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=320, Invalid=1012, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:54:39,642 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 249 mSDsluCounter, 2373 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 2577 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:39,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 2577 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:39,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8258 states. [2022-03-15 13:54:39,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8258 to 7347. [2022-03-15 13:54:39,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6468826572284234) internal successors, (19444), 7346 states have internal predecessors, (19444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:39,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19444 transitions. [2022-03-15 13:54:39,750 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19444 transitions. Word has length 109 [2022-03-15 13:54:39,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:39,750 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19444 transitions. [2022-03-15 13:54:39,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:39,750 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19444 transitions. [2022-03-15 13:54:39,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:39,757 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:39,757 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:39,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable459 [2022-03-15 13:54:39,757 INFO L402 AbstractCegarLoop]: === Iteration 461 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:39,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:39,758 INFO L85 PathProgramCache]: Analyzing trace with hash 377350734, now seen corresponding path program 159 times [2022-03-15 13:54:39,758 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:39,758 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922552667] [2022-03-15 13:54:39,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:39,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:39,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:39,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:39,858 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:39,858 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922552667] [2022-03-15 13:54:39,858 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922552667] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:39,858 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:39,858 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:39,858 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050232400] [2022-03-15 13:54:39,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:39,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:39,859 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:39,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:39,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:39,859 INFO L87 Difference]: Start difference. First operand 7347 states and 19444 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:40,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:40,280 INFO L93 Difference]: Finished difference Result 8695 states and 22991 transitions. [2022-03-15 13:54:40,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:54:40,280 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:40,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:40,291 INFO L225 Difference]: With dead ends: 8695 [2022-03-15 13:54:40,291 INFO L226 Difference]: Without dead ends: 8215 [2022-03-15 13:54:40,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=377, Invalid=1183, Unknown=0, NotChecked=0, Total=1560 [2022-03-15 13:54:40,291 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 231 mSDsluCounter, 2360 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 2572 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:40,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 2572 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:40,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8215 states. [2022-03-15 13:54:40,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8215 to 7343. [2022-03-15 13:54:40,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.6468264777989647) internal successors, (19433), 7342 states have internal predecessors, (19433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:40,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19433 transitions. [2022-03-15 13:54:40,378 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19433 transitions. Word has length 109 [2022-03-15 13:54:40,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:40,378 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19433 transitions. [2022-03-15 13:54:40,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:40,378 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19433 transitions. [2022-03-15 13:54:40,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:40,385 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:40,385 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:40,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable460 [2022-03-15 13:54:40,386 INFO L402 AbstractCegarLoop]: === Iteration 462 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:40,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:40,386 INFO L85 PathProgramCache]: Analyzing trace with hash -743706606, now seen corresponding path program 160 times [2022-03-15 13:54:40,386 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:40,386 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500712805] [2022-03-15 13:54:40,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:40,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:40,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:40,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:40,489 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:40,489 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500712805] [2022-03-15 13:54:40,489 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500712805] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:40,489 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:40,489 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:40,489 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534037850] [2022-03-15 13:54:40,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:40,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:40,489 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:40,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:40,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:40,490 INFO L87 Difference]: Start difference. First operand 7343 states and 19433 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:41,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:41,031 INFO L93 Difference]: Finished difference Result 8803 states and 23268 transitions. [2022-03-15 13:54:41,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-15 13:54:41,032 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:41,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:41,042 INFO L225 Difference]: With dead ends: 8803 [2022-03-15 13:54:41,042 INFO L226 Difference]: Without dead ends: 8283 [2022-03-15 13:54:41,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 425 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=515, Invalid=1465, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 13:54:41,043 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 292 mSDsluCounter, 2577 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 2787 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:41,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [292 Valid, 2787 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:41,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8283 states. [2022-03-15 13:54:41,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8283 to 7339. [2022-03-15 13:54:41,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7339 states, 7338 states have (on average 2.6467702371218316) internal successors, (19422), 7338 states have internal predecessors, (19422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:41,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 19422 transitions. [2022-03-15 13:54:41,133 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 19422 transitions. Word has length 109 [2022-03-15 13:54:41,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:41,133 INFO L470 AbstractCegarLoop]: Abstraction has 7339 states and 19422 transitions. [2022-03-15 13:54:41,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:41,133 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 19422 transitions. [2022-03-15 13:54:41,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:41,140 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:41,140 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:41,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable461 [2022-03-15 13:54:41,140 INFO L402 AbstractCegarLoop]: === Iteration 463 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:41,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:41,140 INFO L85 PathProgramCache]: Analyzing trace with hash -671076882, now seen corresponding path program 161 times [2022-03-15 13:54:41,141 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:41,141 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261816456] [2022-03-15 13:54:41,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:41,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:41,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:41,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:41,243 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:41,243 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261816456] [2022-03-15 13:54:41,243 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261816456] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:41,243 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:41,243 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:41,243 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371344518] [2022-03-15 13:54:41,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:41,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:41,244 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:41,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:41,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:41,244 INFO L87 Difference]: Start difference. First operand 7339 states and 19422 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:41,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:41,777 INFO L93 Difference]: Finished difference Result 8901 states and 23524 transitions. [2022-03-15 13:54:41,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:54:41,778 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:41,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:41,788 INFO L225 Difference]: With dead ends: 8901 [2022-03-15 13:54:41,788 INFO L226 Difference]: Without dead ends: 8379 [2022-03-15 13:54:41,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=469, Invalid=1511, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 13:54:41,788 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 309 mSDsluCounter, 2665 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 2868 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:41,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [309 Valid, 2868 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:41,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8379 states. [2022-03-15 13:54:41,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8379 to 7343. [2022-03-15 13:54:41,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.6462816671206757) internal successors, (19429), 7342 states have internal predecessors, (19429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:41,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19429 transitions. [2022-03-15 13:54:41,888 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19429 transitions. Word has length 109 [2022-03-15 13:54:41,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:41,888 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19429 transitions. [2022-03-15 13:54:41,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:41,889 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19429 transitions. [2022-03-15 13:54:41,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:41,897 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:41,897 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:41,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable462 [2022-03-15 13:54:41,897 INFO L402 AbstractCegarLoop]: === Iteration 464 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:41,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:41,897 INFO L85 PathProgramCache]: Analyzing trace with hash 2065975064, now seen corresponding path program 162 times [2022-03-15 13:54:41,897 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:41,898 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829398995] [2022-03-15 13:54:41,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:41,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:41,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:42,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:42,003 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:42,003 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829398995] [2022-03-15 13:54:42,004 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829398995] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:42,004 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:42,004 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:42,004 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771878797] [2022-03-15 13:54:42,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:42,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:42,004 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:42,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:42,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:42,004 INFO L87 Difference]: Start difference. First operand 7343 states and 19429 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:42,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:42,415 INFO L93 Difference]: Finished difference Result 8737 states and 23094 transitions. [2022-03-15 13:54:42,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:54:42,416 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:42,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:42,425 INFO L225 Difference]: With dead ends: 8737 [2022-03-15 13:54:42,425 INFO L226 Difference]: Without dead ends: 8258 [2022-03-15 13:54:42,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=339, Invalid=1067, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:54:42,426 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 248 mSDsluCounter, 2393 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 2602 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:42,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [248 Valid, 2602 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:42,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8258 states. [2022-03-15 13:54:42,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8258 to 7347. [2022-03-15 13:54:42,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6457936291859516) internal successors, (19436), 7346 states have internal predecessors, (19436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:42,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19436 transitions. [2022-03-15 13:54:42,511 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19436 transitions. Word has length 109 [2022-03-15 13:54:42,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:42,511 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19436 transitions. [2022-03-15 13:54:42,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:42,511 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19436 transitions. [2022-03-15 13:54:42,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:42,518 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:42,518 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:42,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable463 [2022-03-15 13:54:42,518 INFO L402 AbstractCegarLoop]: === Iteration 465 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:42,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:42,519 INFO L85 PathProgramCache]: Analyzing trace with hash -601469114, now seen corresponding path program 163 times [2022-03-15 13:54:42,519 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:42,519 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856793142] [2022-03-15 13:54:42,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:42,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:42,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:42,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:42,621 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:42,621 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856793142] [2022-03-15 13:54:42,621 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856793142] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:42,621 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:42,621 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:42,621 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220015587] [2022-03-15 13:54:42,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:42,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:42,621 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:42,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:42,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:42,621 INFO L87 Difference]: Start difference. First operand 7347 states and 19436 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:43,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:43,029 INFO L93 Difference]: Finished difference Result 8671 states and 22917 transitions. [2022-03-15 13:54:43,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:54:43,029 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:43,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:43,040 INFO L225 Difference]: With dead ends: 8671 [2022-03-15 13:54:43,040 INFO L226 Difference]: Without dead ends: 8183 [2022-03-15 13:54:43,040 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=358, Invalid=1124, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:54:43,040 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 226 mSDsluCounter, 2518 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 2725 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:43,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 2725 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:43,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8183 states. [2022-03-15 13:54:43,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8183 to 7335. [2022-03-15 13:54:43,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7335 states, 7334 states have (on average 2.6467139350968094) internal successors, (19411), 7334 states have internal predecessors, (19411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:43,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7335 states to 7335 states and 19411 transitions. [2022-03-15 13:54:43,126 INFO L78 Accepts]: Start accepts. Automaton has 7335 states and 19411 transitions. Word has length 109 [2022-03-15 13:54:43,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:43,127 INFO L470 AbstractCegarLoop]: Abstraction has 7335 states and 19411 transitions. [2022-03-15 13:54:43,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:43,127 INFO L276 IsEmpty]: Start isEmpty. Operand 7335 states and 19411 transitions. [2022-03-15 13:54:43,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:43,134 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:43,134 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:43,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable464 [2022-03-15 13:54:43,134 INFO L402 AbstractCegarLoop]: === Iteration 466 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:43,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:43,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1883813214, now seen corresponding path program 164 times [2022-03-15 13:54:43,135 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:43,135 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724695649] [2022-03-15 13:54:43,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:43,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:43,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:43,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:43,239 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:43,239 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724695649] [2022-03-15 13:54:43,239 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724695649] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:43,239 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:43,239 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:43,239 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518394896] [2022-03-15 13:54:43,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:43,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:43,239 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:43,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:43,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:43,240 INFO L87 Difference]: Start difference. First operand 7335 states and 19411 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:43,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:43,892 INFO L93 Difference]: Finished difference Result 8922 states and 23563 transitions. [2022-03-15 13:54:43,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-15 13:54:43,892 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:43,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:43,903 INFO L225 Difference]: With dead ends: 8922 [2022-03-15 13:54:43,903 INFO L226 Difference]: Without dead ends: 8357 [2022-03-15 13:54:43,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 700 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=636, Invalid=2016, Unknown=0, NotChecked=0, Total=2652 [2022-03-15 13:54:43,903 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 373 mSDsluCounter, 2733 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 2934 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:43,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [373 Valid, 2934 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:43,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8357 states. [2022-03-15 13:54:43,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8357 to 7339. [2022-03-15 13:54:43,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7339 states, 7338 states have (on average 2.646225129463069) internal successors, (19418), 7338 states have internal predecessors, (19418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:43,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 19418 transitions. [2022-03-15 13:54:43,998 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 19418 transitions. Word has length 109 [2022-03-15 13:54:43,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:43,998 INFO L470 AbstractCegarLoop]: Abstraction has 7339 states and 19418 transitions. [2022-03-15 13:54:43,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:43,998 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 19418 transitions. [2022-03-15 13:54:44,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:44,006 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:44,006 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:44,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable465 [2022-03-15 13:54:44,006 INFO L402 AbstractCegarLoop]: === Iteration 467 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:44,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:44,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1019382152, now seen corresponding path program 165 times [2022-03-15 13:54:44,006 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:44,006 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442930827] [2022-03-15 13:54:44,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:44,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:44,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:44,114 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:44,114 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442930827] [2022-03-15 13:54:44,114 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442930827] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:44,114 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:44,114 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:44,114 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34047425] [2022-03-15 13:54:44,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:44,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:44,114 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:44,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:44,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:44,114 INFO L87 Difference]: Start difference. First operand 7339 states and 19418 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:44,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:44,649 INFO L93 Difference]: Finished difference Result 8805 states and 23256 transitions. [2022-03-15 13:54:44,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:54:44,650 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:44,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:44,660 INFO L225 Difference]: With dead ends: 8805 [2022-03-15 13:54:44,660 INFO L226 Difference]: Without dead ends: 8283 [2022-03-15 13:54:44,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=482, Invalid=1588, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:54:44,660 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 316 mSDsluCounter, 2227 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 2442 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:44,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [316 Valid, 2442 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:44,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8283 states. [2022-03-15 13:54:44,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8283 to 7343. [2022-03-15 13:54:44,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.645736856442386) internal successors, (19425), 7342 states have internal predecessors, (19425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:44,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19425 transitions. [2022-03-15 13:54:44,749 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19425 transitions. Word has length 109 [2022-03-15 13:54:44,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:44,750 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19425 transitions. [2022-03-15 13:54:44,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:44,750 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19425 transitions. [2022-03-15 13:54:44,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:44,757 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:44,757 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:44,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable466 [2022-03-15 13:54:44,757 INFO L402 AbstractCegarLoop]: === Iteration 468 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:44,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:44,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1717669794, now seen corresponding path program 166 times [2022-03-15 13:54:44,758 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:44,758 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973728800] [2022-03-15 13:54:44,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:44,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:44,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:44,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:44,859 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:44,859 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973728800] [2022-03-15 13:54:44,859 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973728800] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:44,859 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:44,859 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:44,859 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903692820] [2022-03-15 13:54:44,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:44,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:44,859 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:44,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:44,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:44,860 INFO L87 Difference]: Start difference. First operand 7343 states and 19425 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:45,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:45,262 INFO L93 Difference]: Finished difference Result 8657 states and 22870 transitions. [2022-03-15 13:54:45,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:54:45,262 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:45,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:45,272 INFO L225 Difference]: With dead ends: 8657 [2022-03-15 13:54:45,273 INFO L226 Difference]: Without dead ends: 8178 [2022-03-15 13:54:45,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=337, Invalid=1145, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:54:45,273 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 246 mSDsluCounter, 2374 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 2579 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:45,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 2579 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:45,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8178 states. [2022-03-15 13:54:45,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8178 to 7347. [2022-03-15 13:54:45,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6452491151647153) internal successors, (19432), 7346 states have internal predecessors, (19432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:45,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19432 transitions. [2022-03-15 13:54:45,380 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19432 transitions. Word has length 109 [2022-03-15 13:54:45,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:45,380 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19432 transitions. [2022-03-15 13:54:45,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:45,380 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19432 transitions. [2022-03-15 13:54:45,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:45,388 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:45,388 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:45,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable467 [2022-03-15 13:54:45,388 INFO L402 AbstractCegarLoop]: === Iteration 469 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:45,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:45,389 INFO L85 PathProgramCache]: Analyzing trace with hash -949774384, now seen corresponding path program 167 times [2022-03-15 13:54:45,389 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:45,389 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550114235] [2022-03-15 13:54:45,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:45,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:45,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:45,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:45,487 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:45,487 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550114235] [2022-03-15 13:54:45,487 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550114235] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:45,487 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:45,487 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:45,487 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404051240] [2022-03-15 13:54:45,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:45,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:45,488 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:45,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:45,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:45,488 INFO L87 Difference]: Start difference. First operand 7347 states and 19432 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:45,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:45,875 INFO L93 Difference]: Finished difference Result 8559 states and 22605 transitions. [2022-03-15 13:54:45,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:54:45,876 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:45,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:45,885 INFO L225 Difference]: With dead ends: 8559 [2022-03-15 13:54:45,885 INFO L226 Difference]: Without dead ends: 8063 [2022-03-15 13:54:45,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=341, Invalid=1065, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:54:45,886 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 209 mSDsluCounter, 2668 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2868 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:45,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 2868 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:45,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8063 states. [2022-03-15 13:54:45,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8063 to 7327. [2022-03-15 13:54:45,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7327 states, 7326 states have (on average 2.6471471471471473) internal successors, (19393), 7326 states have internal predecessors, (19393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:45,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7327 states to 7327 states and 19393 transitions. [2022-03-15 13:54:45,976 INFO L78 Accepts]: Start accepts. Automaton has 7327 states and 19393 transitions. Word has length 109 [2022-03-15 13:54:45,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:45,976 INFO L470 AbstractCegarLoop]: Abstraction has 7327 states and 19393 transitions. [2022-03-15 13:54:45,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:45,976 INFO L276 IsEmpty]: Start isEmpty. Operand 7327 states and 19393 transitions. [2022-03-15 13:54:45,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:45,983 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:45,983 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:45,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable468 [2022-03-15 13:54:45,983 INFO L402 AbstractCegarLoop]: === Iteration 470 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:45,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:45,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1941281456, now seen corresponding path program 168 times [2022-03-15 13:54:45,984 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:45,984 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132579503] [2022-03-15 13:54:45,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:45,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:45,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:46,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:46,091 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:46,091 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132579503] [2022-03-15 13:54:46,091 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132579503] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:46,091 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:46,091 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:46,091 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929033139] [2022-03-15 13:54:46,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:46,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:46,091 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:46,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:46,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:46,092 INFO L87 Difference]: Start difference. First operand 7327 states and 19393 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:46,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:46,482 INFO L93 Difference]: Finished difference Result 8593 states and 22706 transitions. [2022-03-15 13:54:46,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:54:46,483 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:46,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:46,493 INFO L225 Difference]: With dead ends: 8593 [2022-03-15 13:54:46,493 INFO L226 Difference]: Without dead ends: 8114 [2022-03-15 13:54:46,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=314, Invalid=1018, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:54:46,493 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 241 mSDsluCounter, 2319 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 2524 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:46,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 2524 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:46,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8114 states. [2022-03-15 13:54:46,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8114 to 7347. [2022-03-15 13:54:46,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6468826572284234) internal successors, (19444), 7346 states have internal predecessors, (19444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:46,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19444 transitions. [2022-03-15 13:54:46,580 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19444 transitions. Word has length 109 [2022-03-15 13:54:46,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:46,580 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19444 transitions. [2022-03-15 13:54:46,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:46,580 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19444 transitions. [2022-03-15 13:54:46,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:46,587 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:46,587 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:46,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable469 [2022-03-15 13:54:46,587 INFO L402 AbstractCegarLoop]: === Iteration 471 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:46,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:46,588 INFO L85 PathProgramCache]: Analyzing trace with hash -726162722, now seen corresponding path program 169 times [2022-03-15 13:54:46,588 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:46,588 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695732964] [2022-03-15 13:54:46,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:46,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:46,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:46,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:46,696 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:46,696 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695732964] [2022-03-15 13:54:46,696 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695732964] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:46,696 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:46,696 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:46,696 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724572276] [2022-03-15 13:54:46,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:46,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:46,696 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:46,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:46,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:46,696 INFO L87 Difference]: Start difference. First operand 7347 states and 19444 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:47,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:47,134 INFO L93 Difference]: Finished difference Result 8551 states and 22595 transitions. [2022-03-15 13:54:47,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:54:47,134 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:47,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:47,145 INFO L225 Difference]: With dead ends: 8551 [2022-03-15 13:54:47,145 INFO L226 Difference]: Without dead ends: 8071 [2022-03-15 13:54:47,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=378, Invalid=1104, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:54:47,145 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 214 mSDsluCounter, 2469 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 2679 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:47,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 2679 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:47,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8071 states. [2022-03-15 13:54:47,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8071 to 7343. [2022-03-15 13:54:47,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.6468264777989647) internal successors, (19433), 7342 states have internal predecessors, (19433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:47,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19433 transitions. [2022-03-15 13:54:47,247 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19433 transitions. Word has length 109 [2022-03-15 13:54:47,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:47,247 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19433 transitions. [2022-03-15 13:54:47,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:47,247 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19433 transitions. [2022-03-15 13:54:47,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:47,255 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:47,255 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:47,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable470 [2022-03-15 13:54:47,256 INFO L402 AbstractCegarLoop]: === Iteration 472 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:47,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:47,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1847220062, now seen corresponding path program 170 times [2022-03-15 13:54:47,256 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:47,256 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064806669] [2022-03-15 13:54:47,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:47,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:47,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:47,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:47,358 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:47,358 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064806669] [2022-03-15 13:54:47,358 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064806669] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:47,358 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:47,358 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:47,359 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811635268] [2022-03-15 13:54:47,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:47,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:47,359 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:47,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:47,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:47,359 INFO L87 Difference]: Start difference. First operand 7343 states and 19433 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:47,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:47,843 INFO L93 Difference]: Finished difference Result 8639 states and 22817 transitions. [2022-03-15 13:54:47,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-15 13:54:47,843 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:47,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:47,854 INFO L225 Difference]: With dead ends: 8639 [2022-03-15 13:54:47,854 INFO L226 Difference]: Without dead ends: 8119 [2022-03-15 13:54:47,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=506, Invalid=1474, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 13:54:47,855 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 290 mSDsluCounter, 2559 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 2768 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:47,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 2768 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:47,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8119 states. [2022-03-15 13:54:47,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8119 to 7339. [2022-03-15 13:54:47,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7339 states, 7338 states have (on average 2.6467702371218316) internal successors, (19422), 7338 states have internal predecessors, (19422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:47,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 19422 transitions. [2022-03-15 13:54:47,954 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 19422 transitions. Word has length 109 [2022-03-15 13:54:47,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:47,954 INFO L470 AbstractCegarLoop]: Abstraction has 7339 states and 19422 transitions. [2022-03-15 13:54:47,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:47,954 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 19422 transitions. [2022-03-15 13:54:47,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:47,962 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:47,962 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:47,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable471 [2022-03-15 13:54:47,962 INFO L402 AbstractCegarLoop]: === Iteration 473 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:47,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:47,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1774590338, now seen corresponding path program 171 times [2022-03-15 13:54:47,962 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:47,962 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187519941] [2022-03-15 13:54:47,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:47,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:47,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:48,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:48,069 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:48,069 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187519941] [2022-03-15 13:54:48,069 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187519941] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:48,069 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:48,069 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:48,069 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324043838] [2022-03-15 13:54:48,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:48,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:48,070 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:48,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:48,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:48,070 INFO L87 Difference]: Start difference. First operand 7339 states and 19422 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:48,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:48,586 INFO L93 Difference]: Finished difference Result 8753 states and 23117 transitions. [2022-03-15 13:54:48,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:54:48,587 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:48,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:48,596 INFO L225 Difference]: With dead ends: 8753 [2022-03-15 13:54:48,596 INFO L226 Difference]: Without dead ends: 8231 [2022-03-15 13:54:48,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=458, Invalid=1522, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 13:54:48,597 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 331 mSDsluCounter, 2579 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 2777 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:48,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [331 Valid, 2777 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:48,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8231 states. [2022-03-15 13:54:48,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8231 to 7343. [2022-03-15 13:54:48,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.6462816671206757) internal successors, (19429), 7342 states have internal predecessors, (19429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:48,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19429 transitions. [2022-03-15 13:54:48,686 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19429 transitions. Word has length 109 [2022-03-15 13:54:48,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:48,686 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19429 transitions. [2022-03-15 13:54:48,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:48,686 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19429 transitions. [2022-03-15 13:54:48,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:48,693 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:48,693 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:48,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable472 [2022-03-15 13:54:48,694 INFO L402 AbstractCegarLoop]: === Iteration 474 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:48,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:48,694 INFO L85 PathProgramCache]: Analyzing trace with hash 962461608, now seen corresponding path program 172 times [2022-03-15 13:54:48,694 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:48,694 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816174468] [2022-03-15 13:54:48,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:48,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:48,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:48,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:48,804 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:48,804 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816174468] [2022-03-15 13:54:48,804 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816174468] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:48,804 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:48,804 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:48,804 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993125141] [2022-03-15 13:54:48,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:48,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:48,805 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:48,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:48,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:48,805 INFO L87 Difference]: Start difference. First operand 7343 states and 19429 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:49,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:49,221 INFO L93 Difference]: Finished difference Result 8589 states and 22687 transitions. [2022-03-15 13:54:49,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:54:49,221 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:49,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:49,230 INFO L225 Difference]: With dead ends: 8589 [2022-03-15 13:54:49,230 INFO L226 Difference]: Without dead ends: 8110 [2022-03-15 13:54:49,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=1073, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:54:49,231 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 255 mSDsluCounter, 2716 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 2910 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:49,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 2910 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:49,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8110 states. [2022-03-15 13:54:49,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8110 to 7347. [2022-03-15 13:54:49,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6457936291859516) internal successors, (19436), 7346 states have internal predecessors, (19436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:49,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19436 transitions. [2022-03-15 13:54:49,315 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19436 transitions. Word has length 109 [2022-03-15 13:54:49,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:49,315 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19436 transitions. [2022-03-15 13:54:49,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:49,315 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19436 transitions. [2022-03-15 13:54:49,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:49,322 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:49,322 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:49,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable473 [2022-03-15 13:54:49,322 INFO L402 AbstractCegarLoop]: === Iteration 475 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:49,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:49,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1704982570, now seen corresponding path program 173 times [2022-03-15 13:54:49,323 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:49,323 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164302423] [2022-03-15 13:54:49,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:49,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:49,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:49,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:49,425 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:49,425 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164302423] [2022-03-15 13:54:49,425 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164302423] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:49,425 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:49,425 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:49,425 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344310700] [2022-03-15 13:54:49,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:49,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:49,425 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:49,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:49,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:49,426 INFO L87 Difference]: Start difference. First operand 7347 states and 19436 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:49,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:49,829 INFO L93 Difference]: Finished difference Result 8523 states and 22510 transitions. [2022-03-15 13:54:49,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:54:49,829 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:49,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:49,838 INFO L225 Difference]: With dead ends: 8523 [2022-03-15 13:54:49,839 INFO L226 Difference]: Without dead ends: 8035 [2022-03-15 13:54:49,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=362, Invalid=1120, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:54:49,839 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 233 mSDsluCounter, 2646 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 2842 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:49,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 2842 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:49,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8035 states. [2022-03-15 13:54:49,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8035 to 7335. [2022-03-15 13:54:49,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7335 states, 7334 states have (on average 2.6467139350968094) internal successors, (19411), 7334 states have internal predecessors, (19411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:49,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7335 states to 7335 states and 19411 transitions. [2022-03-15 13:54:49,922 INFO L78 Accepts]: Start accepts. Automaton has 7335 states and 19411 transitions. Word has length 109 [2022-03-15 13:54:49,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:49,922 INFO L470 AbstractCegarLoop]: Abstraction has 7335 states and 19411 transitions. [2022-03-15 13:54:49,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:49,922 INFO L276 IsEmpty]: Start isEmpty. Operand 7335 states and 19411 transitions. [2022-03-15 13:54:49,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:49,929 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:49,929 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:49,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable474 [2022-03-15 13:54:49,929 INFO L402 AbstractCegarLoop]: === Iteration 476 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:49,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:49,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1307640626, now seen corresponding path program 174 times [2022-03-15 13:54:49,930 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:49,930 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882808247] [2022-03-15 13:54:49,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:49,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:49,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:50,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:50,038 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:50,038 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882808247] [2022-03-15 13:54:50,038 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882808247] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:50,038 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:50,038 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:50,038 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327597655] [2022-03-15 13:54:50,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:50,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:50,038 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:50,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:50,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:50,039 INFO L87 Difference]: Start difference. First operand 7335 states and 19411 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:50,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:50,682 INFO L93 Difference]: Finished difference Result 8886 states and 23464 transitions. [2022-03-15 13:54:50,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-15 13:54:50,683 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:50,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:50,692 INFO L225 Difference]: With dead ends: 8886 [2022-03-15 13:54:50,692 INFO L226 Difference]: Without dead ends: 8321 [2022-03-15 13:54:50,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 721 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=642, Invalid=2114, Unknown=0, NotChecked=0, Total=2756 [2022-03-15 13:54:50,693 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 407 mSDsluCounter, 2696 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 2891 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:50,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 2891 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:50,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8321 states. [2022-03-15 13:54:50,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8321 to 7339. [2022-03-15 13:54:50,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7339 states, 7338 states have (on average 2.646225129463069) internal successors, (19418), 7338 states have internal predecessors, (19418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:50,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 19418 transitions. [2022-03-15 13:54:50,803 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 19418 transitions. Word has length 109 [2022-03-15 13:54:50,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:50,803 INFO L470 AbstractCegarLoop]: Abstraction has 7339 states and 19418 transitions. [2022-03-15 13:54:50,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:50,803 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 19418 transitions. [2022-03-15 13:54:50,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:50,811 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:50,811 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:50,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable475 [2022-03-15 13:54:50,811 INFO L402 AbstractCegarLoop]: === Iteration 477 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:50,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:50,811 INFO L85 PathProgramCache]: Analyzing trace with hash -2122895608, now seen corresponding path program 175 times [2022-03-15 13:54:50,811 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:50,811 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607144721] [2022-03-15 13:54:50,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:50,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:50,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:50,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:50,917 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:50,917 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607144721] [2022-03-15 13:54:50,917 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607144721] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:50,917 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:50,917 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:50,917 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213934329] [2022-03-15 13:54:50,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:50,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:50,918 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:50,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:50,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:50,918 INFO L87 Difference]: Start difference. First operand 7339 states and 19418 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:51,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:51,459 INFO L93 Difference]: Finished difference Result 8761 states and 23135 transitions. [2022-03-15 13:54:51,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:54:51,459 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:51,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:51,469 INFO L225 Difference]: With dead ends: 8761 [2022-03-15 13:54:51,469 INFO L226 Difference]: Without dead ends: 8239 [2022-03-15 13:54:51,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=471, Invalid=1599, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:54:51,470 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 331 mSDsluCounter, 2587 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 2785 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:51,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [331 Valid, 2785 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:51,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8239 states. [2022-03-15 13:54:51,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8239 to 7343. [2022-03-15 13:54:51,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.645736856442386) internal successors, (19425), 7342 states have internal predecessors, (19425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:51,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19425 transitions. [2022-03-15 13:54:51,566 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19425 transitions. Word has length 109 [2022-03-15 13:54:51,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:51,566 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19425 transitions. [2022-03-15 13:54:51,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:51,567 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19425 transitions. [2022-03-15 13:54:51,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:51,574 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:51,574 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:51,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable476 [2022-03-15 13:54:51,574 INFO L402 AbstractCegarLoop]: === Iteration 478 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:51,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:51,574 INFO L85 PathProgramCache]: Analyzing trace with hash 614156338, now seen corresponding path program 176 times [2022-03-15 13:54:51,574 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:51,575 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456168639] [2022-03-15 13:54:51,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:51,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:51,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:51,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:51,688 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:51,688 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456168639] [2022-03-15 13:54:51,688 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456168639] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:51,688 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:51,689 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:51,689 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36389732] [2022-03-15 13:54:51,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:51,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:51,689 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:51,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:51,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:51,689 INFO L87 Difference]: Start difference. First operand 7343 states and 19425 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:52,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:52,079 INFO L93 Difference]: Finished difference Result 8597 states and 22705 transitions. [2022-03-15 13:54:52,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:54:52,079 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:52,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:52,090 INFO L225 Difference]: With dead ends: 8597 [2022-03-15 13:54:52,090 INFO L226 Difference]: Without dead ends: 8118 [2022-03-15 13:54:52,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=328, Invalid=1078, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:54:52,090 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 260 mSDsluCounter, 2081 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 2287 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:52,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 2287 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:52,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8118 states. [2022-03-15 13:54:52,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8118 to 7347. [2022-03-15 13:54:52,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6452491151647153) internal successors, (19432), 7346 states have internal predecessors, (19432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:52,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19432 transitions. [2022-03-15 13:54:52,191 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19432 transitions. Word has length 109 [2022-03-15 13:54:52,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:52,191 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19432 transitions. [2022-03-15 13:54:52,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:52,191 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19432 transitions. [2022-03-15 13:54:52,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:52,200 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:52,200 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:52,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable477 [2022-03-15 13:54:52,200 INFO L402 AbstractCegarLoop]: === Iteration 479 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:52,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:52,200 INFO L85 PathProgramCache]: Analyzing trace with hash -2053287840, now seen corresponding path program 177 times [2022-03-15 13:54:52,200 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:52,200 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757596386] [2022-03-15 13:54:52,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:52,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:52,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:52,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:52,307 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:52,307 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757596386] [2022-03-15 13:54:52,307 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757596386] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:52,307 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:52,307 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:52,307 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284914161] [2022-03-15 13:54:52,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:52,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:52,307 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:52,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:52,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:52,308 INFO L87 Difference]: Start difference. First operand 7347 states and 19432 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:52,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:52,711 INFO L93 Difference]: Finished difference Result 8523 states and 22506 transitions. [2022-03-15 13:54:52,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:54:52,712 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:52,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:52,723 INFO L225 Difference]: With dead ends: 8523 [2022-03-15 13:54:52,723 INFO L226 Difference]: Without dead ends: 8031 [2022-03-15 13:54:52,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=345, Invalid=1061, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:54:52,724 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 236 mSDsluCounter, 2463 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 2658 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:52,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 2658 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:52,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8031 states. [2022-03-15 13:54:52,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8031 to 7331. [2022-03-15 13:54:52,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7331 states, 7330 states have (on average 2.6466575716234653) internal successors, (19400), 7330 states have internal predecessors, (19400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:52,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7331 states to 7331 states and 19400 transitions. [2022-03-15 13:54:52,822 INFO L78 Accepts]: Start accepts. Automaton has 7331 states and 19400 transitions. Word has length 109 [2022-03-15 13:54:52,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:52,822 INFO L470 AbstractCegarLoop]: Abstraction has 7331 states and 19400 transitions. [2022-03-15 13:54:52,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:52,823 INFO L276 IsEmpty]: Start isEmpty. Operand 7331 states and 19400 transitions. [2022-03-15 13:54:52,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:52,830 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:52,830 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:52,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable478 [2022-03-15 13:54:52,831 INFO L402 AbstractCegarLoop]: === Iteration 480 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:52,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:52,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1660117148, now seen corresponding path program 178 times [2022-03-15 13:54:52,831 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:52,831 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500544315] [2022-03-15 13:54:52,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:52,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:52,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:52,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:52,932 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:52,932 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500544315] [2022-03-15 13:54:52,932 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500544315] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:52,933 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:52,933 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:52,933 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879320079] [2022-03-15 13:54:52,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:52,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:52,933 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:52,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:52,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:52,933 INFO L87 Difference]: Start difference. First operand 7331 states and 19400 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:53,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:53,592 INFO L93 Difference]: Finished difference Result 8839 states and 23316 transitions. [2022-03-15 13:54:53,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-15 13:54:53,592 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:53,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:53,602 INFO L225 Difference]: With dead ends: 8839 [2022-03-15 13:54:53,602 INFO L226 Difference]: Without dead ends: 8231 [2022-03-15 13:54:53,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1024 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=847, Invalid=2813, Unknown=0, NotChecked=0, Total=3660 [2022-03-15 13:54:53,602 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 485 mSDsluCounter, 2672 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 2869 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:53,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [485 Valid, 2869 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:53,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8231 states. [2022-03-15 13:54:53,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8231 to 7335. [2022-03-15 13:54:53,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7335 states, 7334 states have (on average 2.6461685301336244) internal successors, (19407), 7334 states have internal predecessors, (19407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:53,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7335 states to 7335 states and 19407 transitions. [2022-03-15 13:54:53,695 INFO L78 Accepts]: Start accepts. Automaton has 7335 states and 19407 transitions. Word has length 109 [2022-03-15 13:54:53,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:53,695 INFO L470 AbstractCegarLoop]: Abstraction has 7335 states and 19407 transitions. [2022-03-15 13:54:53,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:53,695 INFO L276 IsEmpty]: Start isEmpty. Operand 7335 states and 19407 transitions. [2022-03-15 13:54:53,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:53,702 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:53,702 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:53,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable479 [2022-03-15 13:54:53,703 INFO L402 AbstractCegarLoop]: === Iteration 481 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:53,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:53,703 INFO L85 PathProgramCache]: Analyzing trace with hash -610354592, now seen corresponding path program 179 times [2022-03-15 13:54:53,703 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:53,703 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694606428] [2022-03-15 13:54:53,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:53,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:53,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:53,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:53,830 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:53,830 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694606428] [2022-03-15 13:54:53,830 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694606428] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:53,830 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:53,830 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:53,830 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962132644] [2022-03-15 13:54:53,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:53,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:53,830 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:53,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:53,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:53,831 INFO L87 Difference]: Start difference. First operand 7335 states and 19407 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:54,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:54,467 INFO L93 Difference]: Finished difference Result 8726 states and 23020 transitions. [2022-03-15 13:54:54,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-15 13:54:54,468 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:54,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:54,477 INFO L225 Difference]: With dead ends: 8726 [2022-03-15 13:54:54,477 INFO L226 Difference]: Without dead ends: 8161 [2022-03-15 13:54:54,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 762 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=649, Invalid=2213, Unknown=0, NotChecked=0, Total=2862 [2022-03-15 13:54:54,478 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 409 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 2420 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:54,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [409 Valid, 2420 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:54,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8161 states. [2022-03-15 13:54:54,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8161 to 7339. [2022-03-15 13:54:54,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7339 states, 7338 states have (on average 2.6456800218043064) internal successors, (19414), 7338 states have internal predecessors, (19414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:54,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 19414 transitions. [2022-03-15 13:54:54,569 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 19414 transitions. Word has length 109 [2022-03-15 13:54:54,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:54,569 INFO L470 AbstractCegarLoop]: Abstraction has 7339 states and 19414 transitions. [2022-03-15 13:54:54,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:54,569 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 19414 transitions. [2022-03-15 13:54:54,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:54,576 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:54,576 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:54,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable480 [2022-03-15 13:54:54,577 INFO L402 AbstractCegarLoop]: === Iteration 482 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:54,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:54,577 INFO L85 PathProgramCache]: Analyzing trace with hash 254076470, now seen corresponding path program 180 times [2022-03-15 13:54:54,577 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:54,577 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369951097] [2022-03-15 13:54:54,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:54,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:54,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:54,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:54,684 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:54,684 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369951097] [2022-03-15 13:54:54,684 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369951097] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:54,684 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:54,684 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:54,684 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727931428] [2022-03-15 13:54:54,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:54,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:54,684 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:54,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:54,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:54,685 INFO L87 Difference]: Start difference. First operand 7339 states and 19414 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:55,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:55,195 INFO L93 Difference]: Finished difference Result 8613 states and 22724 transitions. [2022-03-15 13:54:55,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:54:55,196 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:55,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:55,205 INFO L225 Difference]: With dead ends: 8613 [2022-03-15 13:54:55,206 INFO L226 Difference]: Without dead ends: 8091 [2022-03-15 13:54:55,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=461, Invalid=1609, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:54:55,206 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 338 mSDsluCounter, 2372 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 2571 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:55,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [338 Valid, 2571 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:55,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8091 states. [2022-03-15 13:54:55,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8091 to 7343. [2022-03-15 13:54:55,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.645192045764097) internal successors, (19421), 7342 states have internal predecessors, (19421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:55,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19421 transitions. [2022-03-15 13:54:55,301 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19421 transitions. Word has length 109 [2022-03-15 13:54:55,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:55,301 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19421 transitions. [2022-03-15 13:54:55,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:55,302 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19421 transitions. [2022-03-15 13:54:55,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:55,309 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:55,309 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:55,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable481 [2022-03-15 13:54:55,310 INFO L402 AbstractCegarLoop]: === Iteration 483 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:55,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:55,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1303838880, now seen corresponding path program 181 times [2022-03-15 13:54:55,310 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:55,310 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781310821] [2022-03-15 13:54:55,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:55,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:55,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:55,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:55,425 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:55,425 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781310821] [2022-03-15 13:54:55,425 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781310821] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:55,425 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:55,425 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:55,425 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972420221] [2022-03-15 13:54:55,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:55,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:55,425 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:55,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:55,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:55,426 INFO L87 Difference]: Start difference. First operand 7343 states and 19421 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:55,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:55,821 INFO L93 Difference]: Finished difference Result 8473 states and 22360 transitions. [2022-03-15 13:54:55,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:54:55,822 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:55,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:55,831 INFO L225 Difference]: With dead ends: 8473 [2022-03-15 13:54:55,832 INFO L226 Difference]: Without dead ends: 7994 [2022-03-15 13:54:55,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=323, Invalid=1083, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:54:55,832 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 266 mSDsluCounter, 2461 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 2653 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:55,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [266 Valid, 2653 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:55,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7994 states. [2022-03-15 13:54:55,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7994 to 7347. [2022-03-15 13:54:55,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6447046011434794) internal successors, (19428), 7346 states have internal predecessors, (19428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:55,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19428 transitions. [2022-03-15 13:54:55,926 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19428 transitions. Word has length 109 [2022-03-15 13:54:55,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:55,927 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19428 transitions. [2022-03-15 13:54:55,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:55,927 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19428 transitions. [2022-03-15 13:54:55,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:55,938 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:55,939 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:55,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable482 [2022-03-15 13:54:55,939 INFO L402 AbstractCegarLoop]: === Iteration 484 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:55,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:55,939 INFO L85 PathProgramCache]: Analyzing trace with hash 323684238, now seen corresponding path program 182 times [2022-03-15 13:54:55,939 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:55,939 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976954117] [2022-03-15 13:54:55,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:55,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:55,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:56,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:56,051 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:56,052 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976954117] [2022-03-15 13:54:56,052 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976954117] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:56,052 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:56,052 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:56,052 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422569304] [2022-03-15 13:54:56,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:56,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:56,052 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:56,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:56,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:56,052 INFO L87 Difference]: Start difference. First operand 7347 states and 19428 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:56,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:56,449 INFO L93 Difference]: Finished difference Result 8343 states and 22007 transitions. [2022-03-15 13:54:56,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-15 13:54:56,449 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:56,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:56,458 INFO L225 Difference]: With dead ends: 8343 [2022-03-15 13:54:56,458 INFO L226 Difference]: Without dead ends: 7817 [2022-03-15 13:54:56,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=330, Invalid=1002, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:54:56,458 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 221 mSDsluCounter, 2427 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 2618 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:56,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 2618 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:56,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7817 states. [2022-03-15 13:54:56,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7817 to 7297. [2022-03-15 13:54:56,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7297 states, 7296 states have (on average 2.647889254385965) internal successors, (19319), 7296 states have internal predecessors, (19319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:56,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7297 states to 7297 states and 19319 transitions. [2022-03-15 13:54:56,539 INFO L78 Accepts]: Start accepts. Automaton has 7297 states and 19319 transitions. Word has length 109 [2022-03-15 13:54:56,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:56,539 INFO L470 AbstractCegarLoop]: Abstraction has 7297 states and 19319 transitions. [2022-03-15 13:54:56,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:56,539 INFO L276 IsEmpty]: Start isEmpty. Operand 7297 states and 19319 transitions. [2022-03-15 13:54:56,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:56,547 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:56,547 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:56,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable483 [2022-03-15 13:54:56,547 INFO L402 AbstractCegarLoop]: === Iteration 485 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:56,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:56,547 INFO L85 PathProgramCache]: Analyzing trace with hash -744472904, now seen corresponding path program 183 times [2022-03-15 13:54:56,547 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:56,547 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029503687] [2022-03-15 13:54:56,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:56,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:56,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:56,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:56,650 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:56,650 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029503687] [2022-03-15 13:54:56,650 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029503687] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:56,650 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:56,650 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:56,650 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883787780] [2022-03-15 13:54:56,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:56,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:56,650 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:56,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:56,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:56,651 INFO L87 Difference]: Start difference. First operand 7297 states and 19319 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:57,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:57,038 INFO L93 Difference]: Finished difference Result 8551 states and 22599 transitions. [2022-03-15 13:54:57,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:54:57,038 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:57,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:57,049 INFO L225 Difference]: With dead ends: 8551 [2022-03-15 13:54:57,049 INFO L226 Difference]: Without dead ends: 8072 [2022-03-15 13:54:57,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=302, Invalid=888, Unknown=0, NotChecked=0, Total=1190 [2022-03-15 13:54:57,050 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 204 mSDsluCounter, 2198 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 2391 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:57,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [204 Valid, 2391 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:57,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8072 states. [2022-03-15 13:54:57,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8072 to 7321. [2022-03-15 13:54:57,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.6476775956284153) internal successors, (19381), 7320 states have internal predecessors, (19381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:57,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19381 transitions. [2022-03-15 13:54:57,137 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19381 transitions. Word has length 109 [2022-03-15 13:54:57,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:57,137 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19381 transitions. [2022-03-15 13:54:57,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:57,137 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19381 transitions. [2022-03-15 13:54:57,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:57,144 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:57,144 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:57,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable484 [2022-03-15 13:54:57,144 INFO L402 AbstractCegarLoop]: === Iteration 486 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:57,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:57,144 INFO L85 PathProgramCache]: Analyzing trace with hash 883050214, now seen corresponding path program 184 times [2022-03-15 13:54:57,145 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:57,145 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488554482] [2022-03-15 13:54:57,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:57,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:57,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:57,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:57,245 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:57,245 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488554482] [2022-03-15 13:54:57,245 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488554482] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:57,245 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:57,246 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:57,246 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243005653] [2022-03-15 13:54:57,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:57,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:57,246 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:57,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:57,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:57,246 INFO L87 Difference]: Start difference. First operand 7321 states and 19381 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:57,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:57,654 INFO L93 Difference]: Finished difference Result 8517 states and 22510 transitions. [2022-03-15 13:54:57,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:54:57,654 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:57,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:57,666 INFO L225 Difference]: With dead ends: 8517 [2022-03-15 13:54:57,666 INFO L226 Difference]: Without dead ends: 8037 [2022-03-15 13:54:57,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=329, Invalid=1153, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:54:57,666 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 204 mSDsluCounter, 2533 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 2729 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:57,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [204 Valid, 2729 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:57,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8037 states. [2022-03-15 13:54:57,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8037 to 7317. [2022-03-15 13:54:57,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6476216511755055) internal successors, (19370), 7316 states have internal predecessors, (19370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:57,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19370 transitions. [2022-03-15 13:54:57,752 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19370 transitions. Word has length 109 [2022-03-15 13:54:57,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:57,752 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19370 transitions. [2022-03-15 13:54:57,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:57,753 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19370 transitions. [2022-03-15 13:54:57,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:57,759 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:57,760 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:57,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable485 [2022-03-15 13:54:57,760 INFO L402 AbstractCegarLoop]: === Iteration 487 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:57,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:57,760 INFO L85 PathProgramCache]: Analyzing trace with hash -238007126, now seen corresponding path program 185 times [2022-03-15 13:54:57,760 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:57,760 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011315862] [2022-03-15 13:54:57,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:57,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:57,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:57,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:57,860 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:57,860 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011315862] [2022-03-15 13:54:57,860 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011315862] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:57,860 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:57,860 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:57,860 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940133955] [2022-03-15 13:54:57,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:57,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:57,860 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:57,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:57,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:57,861 INFO L87 Difference]: Start difference. First operand 7317 states and 19370 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:58,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:58,357 INFO L93 Difference]: Finished difference Result 8553 states and 22605 transitions. [2022-03-15 13:54:58,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:54:58,357 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:58,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:58,367 INFO L225 Difference]: With dead ends: 8553 [2022-03-15 13:54:58,367 INFO L226 Difference]: Without dead ends: 8033 [2022-03-15 13:54:58,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=484, Invalid=1678, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 13:54:58,367 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 270 mSDsluCounter, 2336 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 2545 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:58,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 2545 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:58,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8033 states. [2022-03-15 13:54:58,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8033 to 7313. [2022-03-15 13:54:58,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.647565645514223) internal successors, (19359), 7312 states have internal predecessors, (19359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:58,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19359 transitions. [2022-03-15 13:54:58,453 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19359 transitions. Word has length 109 [2022-03-15 13:54:58,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:58,453 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19359 transitions. [2022-03-15 13:54:58,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:58,454 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19359 transitions. [2022-03-15 13:54:58,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:58,461 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:58,461 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:58,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable486 [2022-03-15 13:54:58,461 INFO L402 AbstractCegarLoop]: === Iteration 488 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:58,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:58,461 INFO L85 PathProgramCache]: Analyzing trace with hash -763142662, now seen corresponding path program 186 times [2022-03-15 13:54:58,461 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:58,461 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660747478] [2022-03-15 13:54:58,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:58,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:58,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:58,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:58,563 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:58,563 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660747478] [2022-03-15 13:54:58,563 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660747478] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:58,564 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:58,564 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:58,564 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15886230] [2022-03-15 13:54:58,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:58,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:58,564 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:58,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:58,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:58,564 INFO L87 Difference]: Start difference. First operand 7313 states and 19359 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:59,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:59,149 INFO L93 Difference]: Finished difference Result 8781 states and 23204 transitions. [2022-03-15 13:54:59,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-15 13:54:59,149 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:59,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:59,159 INFO L225 Difference]: With dead ends: 8781 [2022-03-15 13:54:59,159 INFO L226 Difference]: Without dead ends: 8221 [2022-03-15 13:54:59,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 748 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=668, Invalid=2194, Unknown=0, NotChecked=0, Total=2862 [2022-03-15 13:54:59,160 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 363 mSDsluCounter, 2243 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 2459 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:59,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [363 Valid, 2459 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:59,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8221 states. [2022-03-15 13:54:59,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8221 to 7309. [2022-03-15 13:54:59,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.6475095785440614) internal successors, (19348), 7308 states have internal predecessors, (19348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:59,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19348 transitions. [2022-03-15 13:54:59,247 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19348 transitions. Word has length 109 [2022-03-15 13:54:59,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:59,247 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19348 transitions. [2022-03-15 13:54:59,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:59,247 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19348 transitions. [2022-03-15 13:54:59,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:59,254 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:59,254 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:59,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable487 [2022-03-15 13:54:59,254 INFO L402 AbstractCegarLoop]: === Iteration 489 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:59,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:59,255 INFO L85 PathProgramCache]: Analyzing trace with hash -953456066, now seen corresponding path program 187 times [2022-03-15 13:54:59,255 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:59,255 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67486887] [2022-03-15 13:54:59,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:59,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:59,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:59,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:59,355 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:59,355 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67486887] [2022-03-15 13:54:59,355 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67486887] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:59,355 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:59,356 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:59,356 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680761694] [2022-03-15 13:54:59,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:59,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:59,356 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:59,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:59,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:59,356 INFO L87 Difference]: Start difference. First operand 7309 states and 19348 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:59,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:54:59,753 INFO L93 Difference]: Finished difference Result 8527 states and 22529 transitions. [2022-03-15 13:54:59,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:54:59,753 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:54:59,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:54:59,763 INFO L225 Difference]: With dead ends: 8527 [2022-03-15 13:54:59,764 INFO L226 Difference]: Without dead ends: 8048 [2022-03-15 13:54:59,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=321, Invalid=1011, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:54:59,764 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 221 mSDsluCounter, 2251 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 2445 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:54:59,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 2445 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:54:59,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8048 states. [2022-03-15 13:54:59,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8048 to 7321. [2022-03-15 13:54:59,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.6471311475409838) internal successors, (19377), 7320 states have internal predecessors, (19377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:59,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19377 transitions. [2022-03-15 13:54:59,857 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19377 transitions. Word has length 109 [2022-03-15 13:54:59,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:54:59,857 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19377 transitions. [2022-03-15 13:54:59,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:54:59,857 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19377 transitions. [2022-03-15 13:54:59,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:54:59,865 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:54:59,865 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:54:59,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable488 [2022-03-15 13:54:59,865 INFO L402 AbstractCegarLoop]: === Iteration 490 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:54:59,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:54:59,865 INFO L85 PathProgramCache]: Analyzing trace with hash 674067052, now seen corresponding path program 188 times [2022-03-15 13:54:59,865 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:54:59,865 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214183335] [2022-03-15 13:54:59,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:54:59,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:54:59,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:54:59,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:54:59,966 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:54:59,966 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214183335] [2022-03-15 13:54:59,966 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214183335] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:54:59,966 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:54:59,966 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:54:59,966 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503244144] [2022-03-15 13:54:59,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:54:59,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:54:59,966 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:54:59,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:54:59,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:54:59,967 INFO L87 Difference]: Start difference. First operand 7321 states and 19377 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:00,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:00,381 INFO L93 Difference]: Finished difference Result 8485 states and 22418 transitions. [2022-03-15 13:55:00,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:55:00,381 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:00,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:00,391 INFO L225 Difference]: With dead ends: 8485 [2022-03-15 13:55:00,391 INFO L226 Difference]: Without dead ends: 8005 [2022-03-15 13:55:00,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=334, Invalid=1148, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:55:00,392 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 218 mSDsluCounter, 2247 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 2450 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:00,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 2450 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:00,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8005 states. [2022-03-15 13:55:00,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8005 to 7317. [2022-03-15 13:55:00,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6470749043193003) internal successors, (19366), 7316 states have internal predecessors, (19366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:00,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19366 transitions. [2022-03-15 13:55:00,484 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19366 transitions. Word has length 109 [2022-03-15 13:55:00,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:00,484 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19366 transitions. [2022-03-15 13:55:00,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:00,484 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19366 transitions. [2022-03-15 13:55:00,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:00,492 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:00,492 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:00,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable489 [2022-03-15 13:55:00,492 INFO L402 AbstractCegarLoop]: === Iteration 491 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:00,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:00,492 INFO L85 PathProgramCache]: Analyzing trace with hash -446990288, now seen corresponding path program 189 times [2022-03-15 13:55:00,492 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:00,492 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507223346] [2022-03-15 13:55:00,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:00,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:00,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:00,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:00,595 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:00,595 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507223346] [2022-03-15 13:55:00,595 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507223346] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:00,595 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:00,595 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:00,596 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229235059] [2022-03-15 13:55:00,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:00,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:00,596 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:00,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:00,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:00,596 INFO L87 Difference]: Start difference. First operand 7317 states and 19366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:01,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:01,093 INFO L93 Difference]: Finished difference Result 8653 states and 22860 transitions. [2022-03-15 13:55:01,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:55:01,093 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:01,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:01,105 INFO L225 Difference]: With dead ends: 8653 [2022-03-15 13:55:01,105 INFO L226 Difference]: Without dead ends: 8133 [2022-03-15 13:55:01,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:55:01,105 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 285 mSDsluCounter, 2453 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 2657 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:01,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 2657 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:01,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8133 states. [2022-03-15 13:55:01,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8133 to 7313. [2022-03-15 13:55:01,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6470185995623634) internal successors, (19355), 7312 states have internal predecessors, (19355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:01,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19355 transitions. [2022-03-15 13:55:01,208 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19355 transitions. Word has length 109 [2022-03-15 13:55:01,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:01,208 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19355 transitions. [2022-03-15 13:55:01,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:01,208 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19355 transitions. [2022-03-15 13:55:01,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:01,216 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:01,216 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:01,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable490 [2022-03-15 13:55:01,216 INFO L402 AbstractCegarLoop]: === Iteration 492 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:01,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:01,216 INFO L85 PathProgramCache]: Analyzing trace with hash -374360564, now seen corresponding path program 190 times [2022-03-15 13:55:01,216 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:01,216 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393728653] [2022-03-15 13:55:01,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:01,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:01,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:01,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:01,322 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:01,322 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393728653] [2022-03-15 13:55:01,322 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393728653] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:01,322 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:01,322 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:01,322 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885654841] [2022-03-15 13:55:01,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:01,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:01,323 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:01,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:01,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:01,323 INFO L87 Difference]: Start difference. First operand 7313 states and 19355 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:01,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:01,814 INFO L93 Difference]: Finished difference Result 8571 states and 22621 transitions. [2022-03-15 13:55:01,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-15 13:55:01,815 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:01,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:01,826 INFO L225 Difference]: With dead ends: 8571 [2022-03-15 13:55:01,826 INFO L226 Difference]: Without dead ends: 8049 [2022-03-15 13:55:01,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=440, Invalid=1282, Unknown=0, NotChecked=0, Total=1722 [2022-03-15 13:55:01,826 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 286 mSDsluCounter, 1729 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 1939 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:01,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [286 Valid, 1939 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:01,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8049 states. [2022-03-15 13:55:01,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8049 to 7317. [2022-03-15 13:55:01,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6465281574630946) internal successors, (19362), 7316 states have internal predecessors, (19362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:01,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19362 transitions. [2022-03-15 13:55:01,945 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19362 transitions. Word has length 109 [2022-03-15 13:55:01,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:01,945 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19362 transitions. [2022-03-15 13:55:01,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:01,945 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19362 transitions. [2022-03-15 13:55:01,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:01,953 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:01,953 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:01,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable491 [2022-03-15 13:55:01,953 INFO L402 AbstractCegarLoop]: === Iteration 493 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:01,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:01,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1932275914, now seen corresponding path program 191 times [2022-03-15 13:55:01,953 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:01,954 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500122627] [2022-03-15 13:55:01,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:01,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:01,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:02,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:02,056 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:02,056 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500122627] [2022-03-15 13:55:02,056 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500122627] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:02,056 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:02,056 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:02,056 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814413793] [2022-03-15 13:55:02,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:02,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:02,056 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:02,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:02,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:02,056 INFO L87 Difference]: Start difference. First operand 7317 states and 19362 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:02,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:02,437 INFO L93 Difference]: Finished difference Result 8471 states and 22367 transitions. [2022-03-15 13:55:02,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:55:02,437 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:02,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:02,447 INFO L225 Difference]: With dead ends: 8471 [2022-03-15 13:55:02,447 INFO L226 Difference]: Without dead ends: 7992 [2022-03-15 13:55:02,447 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=336, Invalid=996, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:55:02,448 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 227 mSDsluCounter, 1695 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 1906 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:02,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 1906 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:02,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7992 states. [2022-03-15 13:55:02,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7992 to 7321. [2022-03-15 13:55:02,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.6460382513661203) internal successors, (19369), 7320 states have internal predecessors, (19369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:02,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19369 transitions. [2022-03-15 13:55:02,536 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19369 transitions. Word has length 109 [2022-03-15 13:55:02,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:02,536 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19369 transitions. [2022-03-15 13:55:02,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:02,537 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19369 transitions. [2022-03-15 13:55:02,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:02,544 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:02,544 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:02,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable492 [2022-03-15 13:55:02,544 INFO L402 AbstractCegarLoop]: === Iteration 494 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:02,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:02,544 INFO L85 PathProgramCache]: Analyzing trace with hash -304752796, now seen corresponding path program 192 times [2022-03-15 13:55:02,544 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:02,544 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154468948] [2022-03-15 13:55:02,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:02,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:02,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:02,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:02,643 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:02,644 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154468948] [2022-03-15 13:55:02,644 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154468948] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:02,644 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:02,644 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:02,644 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890672910] [2022-03-15 13:55:02,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:02,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:02,644 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:02,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:02,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:02,644 INFO L87 Difference]: Start difference. First operand 7321 states and 19369 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:03,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:03,025 INFO L93 Difference]: Finished difference Result 8421 states and 22234 transitions. [2022-03-15 13:55:03,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:55:03,025 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:03,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:03,034 INFO L225 Difference]: With dead ends: 8421 [2022-03-15 13:55:03,034 INFO L226 Difference]: Without dead ends: 7929 [2022-03-15 13:55:03,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=316, Invalid=1090, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:55:03,035 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 196 mSDsluCounter, 2400 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 2601 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:03,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 2601 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:03,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7929 states. [2022-03-15 13:55:03,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7929 to 7305. [2022-03-15 13:55:03,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7305 states, 7304 states have (on average 2.6474534501642935) internal successors, (19337), 7304 states have internal predecessors, (19337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:03,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7305 states to 7305 states and 19337 transitions. [2022-03-15 13:55:03,122 INFO L78 Accepts]: Start accepts. Automaton has 7305 states and 19337 transitions. Word has length 109 [2022-03-15 13:55:03,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:03,122 INFO L470 AbstractCegarLoop]: Abstraction has 7305 states and 19337 transitions. [2022-03-15 13:55:03,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:03,122 INFO L276 IsEmpty]: Start isEmpty. Operand 7305 states and 19337 transitions. [2022-03-15 13:55:03,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:03,129 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:03,130 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:03,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable493 [2022-03-15 13:55:03,130 INFO L402 AbstractCegarLoop]: === Iteration 495 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:03,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:03,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1565037480, now seen corresponding path program 193 times [2022-03-15 13:55:03,130 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:03,130 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116077365] [2022-03-15 13:55:03,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:03,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:03,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:03,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:03,232 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:03,232 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116077365] [2022-03-15 13:55:03,232 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116077365] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:03,232 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:03,232 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:03,232 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941901822] [2022-03-15 13:55:03,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:03,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:03,232 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:03,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:03,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:03,233 INFO L87 Difference]: Start difference. First operand 7305 states and 19337 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:03,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:03,578 INFO L93 Difference]: Finished difference Result 8363 states and 22078 transitions. [2022-03-15 13:55:03,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-15 13:55:03,578 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:03,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:03,588 INFO L225 Difference]: With dead ends: 8363 [2022-03-15 13:55:03,588 INFO L226 Difference]: Without dead ends: 7884 [2022-03-15 13:55:03,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=289, Invalid=833, Unknown=0, NotChecked=0, Total=1122 [2022-03-15 13:55:03,588 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 213 mSDsluCounter, 1832 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2032 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:03,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 2032 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:03,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7884 states. [2022-03-15 13:55:03,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7884 to 7321. [2022-03-15 13:55:03,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.6471311475409838) internal successors, (19377), 7320 states have internal predecessors, (19377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:03,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19377 transitions. [2022-03-15 13:55:03,681 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19377 transitions. Word has length 109 [2022-03-15 13:55:03,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:03,681 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19377 transitions. [2022-03-15 13:55:03,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:03,681 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19377 transitions. [2022-03-15 13:55:03,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:03,689 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:03,689 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:03,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable494 [2022-03-15 13:55:03,689 INFO L402 AbstractCegarLoop]: === Iteration 496 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:03,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:03,689 INFO L85 PathProgramCache]: Analyzing trace with hash 62485638, now seen corresponding path program 194 times [2022-03-15 13:55:03,690 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:03,690 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997850174] [2022-03-15 13:55:03,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:03,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:03,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:03,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:03,790 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:03,790 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997850174] [2022-03-15 13:55:03,790 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997850174] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:03,790 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:03,790 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:03,790 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048975480] [2022-03-15 13:55:03,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:03,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:03,791 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:03,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:03,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:03,791 INFO L87 Difference]: Start difference. First operand 7321 states and 19377 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:04,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:04,175 INFO L93 Difference]: Finished difference Result 8333 states and 22000 transitions. [2022-03-15 13:55:04,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:55:04,176 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:04,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:04,185 INFO L225 Difference]: With dead ends: 8333 [2022-03-15 13:55:04,185 INFO L226 Difference]: Without dead ends: 7853 [2022-03-15 13:55:04,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=325, Invalid=1157, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:55:04,185 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 214 mSDsluCounter, 2130 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 2335 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:04,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 2335 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:04,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7853 states. [2022-03-15 13:55:04,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7853 to 7317. [2022-03-15 13:55:04,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6470749043193003) internal successors, (19366), 7316 states have internal predecessors, (19366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:04,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19366 transitions. [2022-03-15 13:55:04,275 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19366 transitions. Word has length 109 [2022-03-15 13:55:04,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:04,275 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19366 transitions. [2022-03-15 13:55:04,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:04,276 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19366 transitions. [2022-03-15 13:55:04,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:04,283 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:04,283 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:04,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable495 [2022-03-15 13:55:04,283 INFO L402 AbstractCegarLoop]: === Iteration 497 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:04,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:04,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1058571702, now seen corresponding path program 195 times [2022-03-15 13:55:04,284 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:04,284 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726380165] [2022-03-15 13:55:04,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:04,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:04,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:04,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:04,386 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:04,386 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726380165] [2022-03-15 13:55:04,386 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726380165] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:04,386 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:04,386 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:04,386 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496822569] [2022-03-15 13:55:04,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:04,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:04,386 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:04,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:04,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:04,387 INFO L87 Difference]: Start difference. First operand 7317 states and 19366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:04,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:04,912 INFO L93 Difference]: Finished difference Result 8369 states and 22095 transitions. [2022-03-15 13:55:04,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:55:04,912 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:04,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:04,921 INFO L225 Difference]: With dead ends: 8369 [2022-03-15 13:55:04,921 INFO L226 Difference]: Without dead ends: 7849 [2022-03-15 13:55:04,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:55:04,922 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 262 mSDsluCounter, 2488 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 2694 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:04,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 2694 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:04,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7849 states. [2022-03-15 13:55:04,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7849 to 7313. [2022-03-15 13:55:04,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6470185995623634) internal successors, (19355), 7312 states have internal predecessors, (19355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:05,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19355 transitions. [2022-03-15 13:55:05,009 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19355 transitions. Word has length 109 [2022-03-15 13:55:05,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:05,009 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19355 transitions. [2022-03-15 13:55:05,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:05,009 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19355 transitions. [2022-03-15 13:55:05,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:05,017 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:05,017 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:05,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable496 [2022-03-15 13:55:05,017 INFO L402 AbstractCegarLoop]: === Iteration 498 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:05,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:05,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1583707238, now seen corresponding path program 196 times [2022-03-15 13:55:05,018 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:05,018 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397370139] [2022-03-15 13:55:05,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:05,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:05,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:05,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:05,117 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:05,117 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397370139] [2022-03-15 13:55:05,117 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397370139] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:05,118 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:05,118 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:05,118 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908550690] [2022-03-15 13:55:05,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:05,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:05,118 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:05,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:05,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:05,118 INFO L87 Difference]: Start difference. First operand 7313 states and 19355 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:05,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:05,708 INFO L93 Difference]: Finished difference Result 8405 states and 22190 transitions. [2022-03-15 13:55:05,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-15 13:55:05,708 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:05,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:05,717 INFO L225 Difference]: With dead ends: 8405 [2022-03-15 13:55:05,717 INFO L226 Difference]: Without dead ends: 7845 [2022-03-15 13:55:05,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 797 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=675, Invalid=2295, Unknown=0, NotChecked=0, Total=2970 [2022-03-15 13:55:05,718 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 326 mSDsluCounter, 2418 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 2634 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:05,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [326 Valid, 2634 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:05,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7845 states. [2022-03-15 13:55:05,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7845 to 7309. [2022-03-15 13:55:05,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.6469622331691296) internal successors, (19344), 7308 states have internal predecessors, (19344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:05,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19344 transitions. [2022-03-15 13:55:05,802 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19344 transitions. Word has length 109 [2022-03-15 13:55:05,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:05,802 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19344 transitions. [2022-03-15 13:55:05,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:05,802 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19344 transitions. [2022-03-15 13:55:05,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:05,809 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:05,809 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:05,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable497 [2022-03-15 13:55:05,809 INFO L402 AbstractCegarLoop]: === Iteration 499 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:05,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:05,809 INFO L85 PathProgramCache]: Analyzing trace with hash -931413972, now seen corresponding path program 197 times [2022-03-15 13:55:05,809 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:05,810 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575958465] [2022-03-15 13:55:05,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:05,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:05,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:05,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:05,909 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:05,909 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575958465] [2022-03-15 13:55:05,909 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575958465] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:05,909 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:05,909 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:05,909 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036559127] [2022-03-15 13:55:05,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:05,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:05,910 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:05,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:05,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:05,910 INFO L87 Difference]: Start difference. First operand 7309 states and 19344 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:06,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:06,543 INFO L93 Difference]: Finished difference Result 8373 states and 22102 transitions. [2022-03-15 13:55:06,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-15 13:55:06,543 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:06,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:06,554 INFO L225 Difference]: With dead ends: 8373 [2022-03-15 13:55:06,554 INFO L226 Difference]: Without dead ends: 7769 [2022-03-15 13:55:06,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 911 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=796, Invalid=2510, Unknown=0, NotChecked=0, Total=3306 [2022-03-15 13:55:06,554 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 386 mSDsluCounter, 2252 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 2469 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:06,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 2469 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:06,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7769 states. [2022-03-15 13:55:06,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7769 to 7301. [2022-03-15 13:55:06,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7301 states, 7300 states have (on average 2.647397260273973) internal successors, (19326), 7300 states have internal predecessors, (19326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:06,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7301 states to 7301 states and 19326 transitions. [2022-03-15 13:55:06,651 INFO L78 Accepts]: Start accepts. Automaton has 7301 states and 19326 transitions. Word has length 109 [2022-03-15 13:55:06,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:06,651 INFO L470 AbstractCegarLoop]: Abstraction has 7301 states and 19326 transitions. [2022-03-15 13:55:06,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:06,651 INFO L276 IsEmpty]: Start isEmpty. Operand 7301 states and 19326 transitions. [2022-03-15 13:55:06,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:06,660 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:06,660 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:06,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable498 [2022-03-15 13:55:06,660 INFO L402 AbstractCegarLoop]: === Iteration 500 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:06,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:06,660 INFO L85 PathProgramCache]: Analyzing trace with hash 698429018, now seen corresponding path program 198 times [2022-03-15 13:55:06,660 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:06,660 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103733403] [2022-03-15 13:55:06,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:06,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:06,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:06,769 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:06,769 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103733403] [2022-03-15 13:55:06,769 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103733403] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:06,769 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:06,769 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:06,769 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012143434] [2022-03-15 13:55:06,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:06,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:06,769 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:06,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:06,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:06,770 INFO L87 Difference]: Start difference. First operand 7301 states and 19326 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:07,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:07,154 INFO L93 Difference]: Finished difference Result 8503 states and 22467 transitions. [2022-03-15 13:55:07,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:55:07,154 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:07,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:07,164 INFO L225 Difference]: With dead ends: 8503 [2022-03-15 13:55:07,164 INFO L226 Difference]: Without dead ends: 8024 [2022-03-15 13:55:07,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=296, Invalid=894, Unknown=0, NotChecked=0, Total=1190 [2022-03-15 13:55:07,165 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 241 mSDsluCounter, 2004 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 2194 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:07,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 2194 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:07,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8024 states. [2022-03-15 13:55:07,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8024 to 7321. [2022-03-15 13:55:07,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.6471311475409838) internal successors, (19377), 7320 states have internal predecessors, (19377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:07,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19377 transitions. [2022-03-15 13:55:07,276 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19377 transitions. Word has length 109 [2022-03-15 13:55:07,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:07,276 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19377 transitions. [2022-03-15 13:55:07,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:07,276 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19377 transitions. [2022-03-15 13:55:07,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:07,283 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:07,283 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:07,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable499 [2022-03-15 13:55:07,283 INFO L402 AbstractCegarLoop]: === Iteration 501 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:07,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:07,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1969015160, now seen corresponding path program 199 times [2022-03-15 13:55:07,283 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:07,283 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956497212] [2022-03-15 13:55:07,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:07,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:07,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:07,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:07,385 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:07,385 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956497212] [2022-03-15 13:55:07,385 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956497212] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:07,385 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:07,385 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:07,385 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395629434] [2022-03-15 13:55:07,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:07,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:07,385 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:07,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:07,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:07,386 INFO L87 Difference]: Start difference. First operand 7321 states and 19377 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:07,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:07,778 INFO L93 Difference]: Finished difference Result 8469 states and 22378 transitions. [2022-03-15 13:55:07,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:55:07,778 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:07,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:07,787 INFO L225 Difference]: With dead ends: 8469 [2022-03-15 13:55:07,787 INFO L226 Difference]: Without dead ends: 7989 [2022-03-15 13:55:07,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=1149, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:55:07,788 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 216 mSDsluCounter, 2490 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 2679 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:07,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 2679 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:07,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7989 states. [2022-03-15 13:55:07,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7989 to 7317. [2022-03-15 13:55:07,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6470749043193003) internal successors, (19366), 7316 states have internal predecessors, (19366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:07,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19366 transitions. [2022-03-15 13:55:07,873 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19366 transitions. Word has length 109 [2022-03-15 13:55:07,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:07,873 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19366 transitions. [2022-03-15 13:55:07,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:07,873 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19366 transitions. [2022-03-15 13:55:07,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:07,880 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:07,880 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:07,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable500 [2022-03-15 13:55:07,880 INFO L402 AbstractCegarLoop]: === Iteration 502 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:07,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:07,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1204894796, now seen corresponding path program 200 times [2022-03-15 13:55:07,880 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:07,880 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661784760] [2022-03-15 13:55:07,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:07,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:07,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:07,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:07,982 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:07,982 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661784760] [2022-03-15 13:55:07,982 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661784760] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:07,982 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:07,982 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:07,982 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149049108] [2022-03-15 13:55:07,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:07,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:07,983 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:07,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:07,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:07,983 INFO L87 Difference]: Start difference. First operand 7317 states and 19366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:08,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:08,468 INFO L93 Difference]: Finished difference Result 8505 states and 22473 transitions. [2022-03-15 13:55:08,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:55:08,468 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:08,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:08,477 INFO L225 Difference]: With dead ends: 8505 [2022-03-15 13:55:08,477 INFO L226 Difference]: Without dead ends: 7985 [2022-03-15 13:55:08,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=493, Invalid=1669, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 13:55:08,478 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 289 mSDsluCounter, 2427 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 2626 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:08,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 2626 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:08,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7985 states. [2022-03-15 13:55:08,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7985 to 7313. [2022-03-15 13:55:08,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6470185995623634) internal successors, (19355), 7312 states have internal predecessors, (19355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:08,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19355 transitions. [2022-03-15 13:55:08,562 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19355 transitions. Word has length 109 [2022-03-15 13:55:08,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:08,563 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19355 transitions. [2022-03-15 13:55:08,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:08,563 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19355 transitions. [2022-03-15 13:55:08,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:08,570 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:08,570 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:08,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable501 [2022-03-15 13:55:08,570 INFO L402 AbstractCegarLoop]: === Iteration 503 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:08,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:08,570 INFO L85 PathProgramCache]: Analyzing trace with hash 679759260, now seen corresponding path program 201 times [2022-03-15 13:55:08,570 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:08,570 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930023692] [2022-03-15 13:55:08,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:08,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:08,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:08,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:08,671 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:08,671 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930023692] [2022-03-15 13:55:08,671 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930023692] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:08,671 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:08,672 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:08,672 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424392951] [2022-03-15 13:55:08,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:08,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:08,672 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:08,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:08,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:08,672 INFO L87 Difference]: Start difference. First operand 7313 states and 19355 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:09,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:09,233 INFO L93 Difference]: Finished difference Result 8649 states and 22841 transitions. [2022-03-15 13:55:09,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-15 13:55:09,234 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:09,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:09,243 INFO L225 Difference]: With dead ends: 8649 [2022-03-15 13:55:09,244 INFO L226 Difference]: Without dead ends: 8089 [2022-03-15 13:55:09,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 698 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=661, Invalid=2095, Unknown=0, NotChecked=0, Total=2756 [2022-03-15 13:55:09,244 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 380 mSDsluCounter, 2279 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 2479 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:09,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [380 Valid, 2479 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:09,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8089 states. [2022-03-15 13:55:09,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8089 to 7309. [2022-03-15 13:55:09,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.6469622331691296) internal successors, (19344), 7308 states have internal predecessors, (19344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:09,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19344 transitions. [2022-03-15 13:55:09,330 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19344 transitions. Word has length 109 [2022-03-15 13:55:09,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:09,330 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19344 transitions. [2022-03-15 13:55:09,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:09,330 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19344 transitions. [2022-03-15 13:55:09,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:09,337 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:09,337 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:09,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable502 [2022-03-15 13:55:09,338 INFO L402 AbstractCegarLoop]: === Iteration 504 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:09,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:09,338 INFO L85 PathProgramCache]: Analyzing trace with hash 489445856, now seen corresponding path program 202 times [2022-03-15 13:55:09,338 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:09,338 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115954323] [2022-03-15 13:55:09,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:09,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:09,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:09,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:09,460 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:09,461 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115954323] [2022-03-15 13:55:09,461 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115954323] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:09,461 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:09,461 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:09,461 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443840942] [2022-03-15 13:55:09,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:09,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:09,461 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:09,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:09,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:09,461 INFO L87 Difference]: Start difference. First operand 7309 states and 19344 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:09,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:09,851 INFO L93 Difference]: Finished difference Result 8575 states and 22661 transitions. [2022-03-15 13:55:09,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:55:09,851 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:09,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:09,860 INFO L225 Difference]: With dead ends: 8575 [2022-03-15 13:55:09,860 INFO L226 Difference]: Without dead ends: 8096 [2022-03-15 13:55:09,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=312, Invalid=948, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:55:09,861 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 232 mSDsluCounter, 2373 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 2558 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:09,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 2558 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:09,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8096 states. [2022-03-15 13:55:09,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8096 to 7321. [2022-03-15 13:55:09,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.646584699453552) internal successors, (19373), 7320 states have internal predecessors, (19373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:09,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19373 transitions. [2022-03-15 13:55:09,947 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19373 transitions. Word has length 109 [2022-03-15 13:55:09,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:09,947 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19373 transitions. [2022-03-15 13:55:09,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:09,947 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19373 transitions. [2022-03-15 13:55:09,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:09,954 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:09,954 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:09,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable503 [2022-03-15 13:55:09,954 INFO L402 AbstractCegarLoop]: === Iteration 505 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:09,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:09,955 INFO L85 PathProgramCache]: Analyzing trace with hash 2116968974, now seen corresponding path program 203 times [2022-03-15 13:55:09,955 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:09,955 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630718545] [2022-03-15 13:55:09,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:09,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:09,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:10,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:10,059 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:10,059 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630718545] [2022-03-15 13:55:10,060 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630718545] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:10,060 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:10,060 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:10,060 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253109426] [2022-03-15 13:55:10,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:10,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:10,060 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:10,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:10,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:10,060 INFO L87 Difference]: Start difference. First operand 7321 states and 19373 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:10,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:10,462 INFO L93 Difference]: Finished difference Result 8533 states and 22550 transitions. [2022-03-15 13:55:10,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:55:10,462 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:10,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:10,471 INFO L225 Difference]: With dead ends: 8533 [2022-03-15 13:55:10,471 INFO L226 Difference]: Without dead ends: 8053 [2022-03-15 13:55:10,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=338, Invalid=1144, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:55:10,472 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 237 mSDsluCounter, 2218 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 2416 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:10,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 2416 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:10,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8053 states. [2022-03-15 13:55:10,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8053 to 7317. [2022-03-15 13:55:10,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6465281574630946) internal successors, (19362), 7316 states have internal predecessors, (19362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:10,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19362 transitions. [2022-03-15 13:55:10,557 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19362 transitions. Word has length 109 [2022-03-15 13:55:10,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:10,557 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19362 transitions. [2022-03-15 13:55:10,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:10,558 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19362 transitions. [2022-03-15 13:55:10,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:10,565 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:10,565 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:10,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable504 [2022-03-15 13:55:10,565 INFO L402 AbstractCegarLoop]: === Iteration 506 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:10,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:10,565 INFO L85 PathProgramCache]: Analyzing trace with hash 995911634, now seen corresponding path program 204 times [2022-03-15 13:55:10,565 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:10,565 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597574318] [2022-03-15 13:55:10,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:10,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:10,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:10,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:10,670 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:10,671 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597574318] [2022-03-15 13:55:10,671 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597574318] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:10,671 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:10,671 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:10,671 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886708475] [2022-03-15 13:55:10,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:10,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:10,671 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:10,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:10,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:10,671 INFO L87 Difference]: Start difference. First operand 7317 states and 19362 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:11,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:11,156 INFO L93 Difference]: Finished difference Result 8661 states and 22882 transitions. [2022-03-15 13:55:11,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:55:11,156 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:11,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:11,166 INFO L225 Difference]: With dead ends: 8661 [2022-03-15 13:55:11,166 INFO L226 Difference]: Without dead ends: 8141 [2022-03-15 13:55:11,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=481, Invalid=1589, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:55:11,166 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 311 mSDsluCounter, 2275 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 2476 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:11,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [311 Valid, 2476 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:11,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8141 states. [2022-03-15 13:55:11,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8141 to 7313. [2022-03-15 13:55:11,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6464715536105032) internal successors, (19351), 7312 states have internal predecessors, (19351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:11,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19351 transitions. [2022-03-15 13:55:11,256 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19351 transitions. Word has length 109 [2022-03-15 13:55:11,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:11,256 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19351 transitions. [2022-03-15 13:55:11,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:11,257 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19351 transitions. [2022-03-15 13:55:11,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:11,264 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:11,264 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:11,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable505 [2022-03-15 13:55:11,264 INFO L402 AbstractCegarLoop]: === Iteration 507 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:11,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:11,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1068541358, now seen corresponding path program 205 times [2022-03-15 13:55:11,264 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:11,264 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649250198] [2022-03-15 13:55:11,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:11,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:11,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:11,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:11,389 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:11,390 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649250198] [2022-03-15 13:55:11,390 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649250198] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:11,390 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:11,390 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:11,390 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268104143] [2022-03-15 13:55:11,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:11,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:11,390 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:11,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:11,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:11,390 INFO L87 Difference]: Start difference. First operand 7313 states and 19351 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:11,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:11,895 INFO L93 Difference]: Finished difference Result 8663 states and 22874 transitions. [2022-03-15 13:55:11,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-15 13:55:11,895 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:11,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:11,905 INFO L225 Difference]: With dead ends: 8663 [2022-03-15 13:55:11,906 INFO L226 Difference]: Without dead ends: 8141 [2022-03-15 13:55:11,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 399 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=449, Invalid=1357, Unknown=0, NotChecked=0, Total=1806 [2022-03-15 13:55:11,906 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 290 mSDsluCounter, 2252 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 2443 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:11,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 2443 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:11,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8141 states. [2022-03-15 13:55:11,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8141 to 7317. [2022-03-15 13:55:11,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.645981410606889) internal successors, (19358), 7316 states have internal predecessors, (19358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:12,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19358 transitions. [2022-03-15 13:55:12,006 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19358 transitions. Word has length 109 [2022-03-15 13:55:12,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:12,006 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19358 transitions. [2022-03-15 13:55:12,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:12,006 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19358 transitions. [2022-03-15 13:55:12,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:12,014 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:12,014 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:12,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable506 [2022-03-15 13:55:12,014 INFO L402 AbstractCegarLoop]: === Iteration 508 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:12,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:12,015 INFO L85 PathProgramCache]: Analyzing trace with hash -489373992, now seen corresponding path program 206 times [2022-03-15 13:55:12,015 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:12,015 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555872681] [2022-03-15 13:55:12,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:12,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:12,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:12,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:12,128 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:12,128 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555872681] [2022-03-15 13:55:12,128 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555872681] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:12,128 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:12,128 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:12,128 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757375863] [2022-03-15 13:55:12,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:12,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:12,128 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:12,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:12,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:12,129 INFO L87 Difference]: Start difference. First operand 7317 states and 19358 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:12,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:12,546 INFO L93 Difference]: Finished difference Result 8515 states and 22488 transitions. [2022-03-15 13:55:12,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:55:12,546 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:12,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:12,556 INFO L225 Difference]: With dead ends: 8515 [2022-03-15 13:55:12,556 INFO L226 Difference]: Without dead ends: 8036 [2022-03-15 13:55:12,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=330, Invalid=1002, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:55:12,557 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 219 mSDsluCounter, 2181 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 2374 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:12,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 2374 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:12,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8036 states. [2022-03-15 13:55:12,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8036 to 7321. [2022-03-15 13:55:12,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.6454918032786887) internal successors, (19365), 7320 states have internal predecessors, (19365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:12,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19365 transitions. [2022-03-15 13:55:12,686 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19365 transitions. Word has length 109 [2022-03-15 13:55:12,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:12,686 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19365 transitions. [2022-03-15 13:55:12,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:12,686 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19365 transitions. [2022-03-15 13:55:12,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:12,694 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:12,694 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:12,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable507 [2022-03-15 13:55:12,694 INFO L402 AbstractCegarLoop]: === Iteration 509 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:12,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:12,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1138149126, now seen corresponding path program 207 times [2022-03-15 13:55:12,695 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:12,695 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203273984] [2022-03-15 13:55:12,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:12,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:12,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:12,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:12,802 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:12,802 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203273984] [2022-03-15 13:55:12,802 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203273984] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:12,802 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:12,802 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:12,802 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393153184] [2022-03-15 13:55:12,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:12,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:12,802 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:12,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:12,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:12,803 INFO L87 Difference]: Start difference. First operand 7321 states and 19365 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:13,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:13,187 INFO L93 Difference]: Finished difference Result 8433 states and 22267 transitions. [2022-03-15 13:55:13,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:55:13,187 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:13,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:13,197 INFO L225 Difference]: With dead ends: 8433 [2022-03-15 13:55:13,198 INFO L226 Difference]: Without dead ends: 7941 [2022-03-15 13:55:13,198 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=320, Invalid=1086, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:55:13,198 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 225 mSDsluCounter, 2201 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 2396 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:13,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 2396 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:13,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7941 states. [2022-03-15 13:55:13,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7941 to 7305. [2022-03-15 13:55:13,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7305 states, 7304 states have (on average 2.646905805038335) internal successors, (19333), 7304 states have internal predecessors, (19333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:13,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7305 states to 7305 states and 19333 transitions. [2022-03-15 13:55:13,281 INFO L78 Accepts]: Start accepts. Automaton has 7305 states and 19333 transitions. Word has length 109 [2022-03-15 13:55:13,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:13,282 INFO L470 AbstractCegarLoop]: Abstraction has 7305 states and 19333 transitions. [2022-03-15 13:55:13,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:13,282 INFO L276 IsEmpty]: Start isEmpty. Operand 7305 states and 19333 transitions. [2022-03-15 13:55:13,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:13,288 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:13,289 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:13,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable508 [2022-03-15 13:55:13,289 INFO L402 AbstractCegarLoop]: === Iteration 510 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:13,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:13,289 INFO L85 PathProgramCache]: Analyzing trace with hash 441409752, now seen corresponding path program 208 times [2022-03-15 13:55:13,289 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:13,289 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884862099] [2022-03-15 13:55:13,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:13,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:13,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:13,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:13,395 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:13,395 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884862099] [2022-03-15 13:55:13,395 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884862099] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:13,395 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:13,395 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:13,395 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834956986] [2022-03-15 13:55:13,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:13,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:13,395 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:13,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:13,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:13,396 INFO L87 Difference]: Start difference. First operand 7305 states and 19333 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:13,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:13,806 INFO L93 Difference]: Finished difference Result 8471 states and 22375 transitions. [2022-03-15 13:55:13,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:55:13,807 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:13,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:13,817 INFO L225 Difference]: With dead ends: 8471 [2022-03-15 13:55:13,817 INFO L226 Difference]: Without dead ends: 7992 [2022-03-15 13:55:13,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=307, Invalid=953, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:55:13,817 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 219 mSDsluCounter, 2508 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 2687 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:13,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 2687 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:13,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7992 states. [2022-03-15 13:55:13,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7992 to 7321. [2022-03-15 13:55:13,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.646584699453552) internal successors, (19373), 7320 states have internal predecessors, (19373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:13,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19373 transitions. [2022-03-15 13:55:13,905 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19373 transitions. Word has length 109 [2022-03-15 13:55:13,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:13,905 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19373 transitions. [2022-03-15 13:55:13,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:13,905 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19373 transitions. [2022-03-15 13:55:13,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:13,913 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:13,913 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:13,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable509 [2022-03-15 13:55:13,913 INFO L402 AbstractCegarLoop]: === Iteration 511 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:13,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:13,914 INFO L85 PathProgramCache]: Analyzing trace with hash 2068932870, now seen corresponding path program 209 times [2022-03-15 13:55:13,914 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:13,914 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883154591] [2022-03-15 13:55:13,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:13,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:13,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:14,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:14,041 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:14,041 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883154591] [2022-03-15 13:55:14,041 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883154591] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:14,042 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:14,042 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:14,042 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257697999] [2022-03-15 13:55:14,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:14,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:14,042 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:14,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:14,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:14,042 INFO L87 Difference]: Start difference. First operand 7321 states and 19373 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:14,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:14,462 INFO L93 Difference]: Finished difference Result 8429 states and 22264 transitions. [2022-03-15 13:55:14,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:55:14,462 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:14,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:14,471 INFO L225 Difference]: With dead ends: 8429 [2022-03-15 13:55:14,471 INFO L226 Difference]: Without dead ends: 7949 [2022-03-15 13:55:14,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=340, Invalid=1066, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:55:14,472 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 208 mSDsluCounter, 2482 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 2672 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:14,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 2672 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:14,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7949 states. [2022-03-15 13:55:14,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7949 to 7317. [2022-03-15 13:55:14,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6465281574630946) internal successors, (19362), 7316 states have internal predecessors, (19362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:14,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19362 transitions. [2022-03-15 13:55:14,555 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19362 transitions. Word has length 109 [2022-03-15 13:55:14,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:14,556 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19362 transitions. [2022-03-15 13:55:14,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:14,556 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19362 transitions. [2022-03-15 13:55:14,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:14,563 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:14,564 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:14,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable510 [2022-03-15 13:55:14,564 INFO L402 AbstractCegarLoop]: === Iteration 512 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:14,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:14,568 INFO L85 PathProgramCache]: Analyzing trace with hash 947875530, now seen corresponding path program 210 times [2022-03-15 13:55:14,568 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:14,568 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398612292] [2022-03-15 13:55:14,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:14,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:14,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:14,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:14,672 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:14,672 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398612292] [2022-03-15 13:55:14,672 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398612292] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:14,672 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:14,672 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:14,672 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088049057] [2022-03-15 13:55:14,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:14,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:14,672 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:14,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:14,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:14,673 INFO L87 Difference]: Start difference. First operand 7317 states and 19362 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:15,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:15,153 INFO L93 Difference]: Finished difference Result 8537 states and 22541 transitions. [2022-03-15 13:55:15,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-15 13:55:15,153 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:15,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:15,162 INFO L225 Difference]: With dead ends: 8537 [2022-03-15 13:55:15,162 INFO L226 Difference]: Without dead ends: 8017 [2022-03-15 13:55:15,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=470, Invalid=1510, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 13:55:15,164 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 283 mSDsluCounter, 2535 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 2728 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:15,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [283 Valid, 2728 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:15,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8017 states. [2022-03-15 13:55:15,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8017 to 7313. [2022-03-15 13:55:15,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6464715536105032) internal successors, (19351), 7312 states have internal predecessors, (19351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:15,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19351 transitions. [2022-03-15 13:55:15,250 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19351 transitions. Word has length 109 [2022-03-15 13:55:15,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:15,250 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19351 transitions. [2022-03-15 13:55:15,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:15,250 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19351 transitions. [2022-03-15 13:55:15,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:15,257 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:15,257 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:15,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable511 [2022-03-15 13:55:15,257 INFO L402 AbstractCegarLoop]: === Iteration 513 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:15,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:15,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1020505254, now seen corresponding path program 211 times [2022-03-15 13:55:15,258 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:15,258 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472561611] [2022-03-15 13:55:15,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:15,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:15,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:15,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:15,363 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:15,363 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472561611] [2022-03-15 13:55:15,363 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472561611] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:15,363 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:15,364 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:15,364 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224768159] [2022-03-15 13:55:15,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:15,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:15,364 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:15,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:15,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:15,364 INFO L87 Difference]: Start difference. First operand 7313 states and 19351 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:15,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:15,867 INFO L93 Difference]: Finished difference Result 8635 states and 22797 transitions. [2022-03-15 13:55:15,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:55:15,867 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:15,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:15,876 INFO L225 Difference]: With dead ends: 8635 [2022-03-15 13:55:15,877 INFO L226 Difference]: Without dead ends: 8113 [2022-03-15 13:55:15,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=460, Invalid=1432, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 13:55:15,877 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 312 mSDsluCounter, 2223 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 2409 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:15,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 2409 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:15,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8113 states. [2022-03-15 13:55:15,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8113 to 7317. [2022-03-15 13:55:15,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.645981410606889) internal successors, (19358), 7316 states have internal predecessors, (19358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:15,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19358 transitions. [2022-03-15 13:55:15,965 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19358 transitions. Word has length 109 [2022-03-15 13:55:15,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:15,965 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19358 transitions. [2022-03-15 13:55:15,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:15,966 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19358 transitions. [2022-03-15 13:55:15,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:15,973 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:15,973 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:15,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable512 [2022-03-15 13:55:15,973 INFO L402 AbstractCegarLoop]: === Iteration 514 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:15,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:15,973 INFO L85 PathProgramCache]: Analyzing trace with hash -537410096, now seen corresponding path program 212 times [2022-03-15 13:55:15,973 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:15,973 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109207075] [2022-03-15 13:55:15,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:15,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:15,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:16,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:16,080 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:16,080 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109207075] [2022-03-15 13:55:16,080 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109207075] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:16,080 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:16,080 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:16,081 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987438945] [2022-03-15 13:55:16,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:16,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:16,081 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:16,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:16,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:16,081 INFO L87 Difference]: Start difference. First operand 7317 states and 19358 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:16,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:16,478 INFO L93 Difference]: Finished difference Result 8471 states and 22367 transitions. [2022-03-15 13:55:16,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:55:16,479 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:16,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:16,490 INFO L225 Difference]: With dead ends: 8471 [2022-03-15 13:55:16,490 INFO L226 Difference]: Without dead ends: 7992 [2022-03-15 13:55:16,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=325, Invalid=1007, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:55:16,490 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 251 mSDsluCounter, 2201 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 2387 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:16,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 2387 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:16,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7992 states. [2022-03-15 13:55:16,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7992 to 7321. [2022-03-15 13:55:16,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.6454918032786887) internal successors, (19365), 7320 states have internal predecessors, (19365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:16,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19365 transitions. [2022-03-15 13:55:16,582 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19365 transitions. Word has length 109 [2022-03-15 13:55:16,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:16,582 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19365 transitions. [2022-03-15 13:55:16,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:16,582 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19365 transitions. [2022-03-15 13:55:16,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:16,589 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:16,589 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:16,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable513 [2022-03-15 13:55:16,589 INFO L402 AbstractCegarLoop]: === Iteration 515 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:16,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:16,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1090113022, now seen corresponding path program 213 times [2022-03-15 13:55:16,590 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:16,590 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297861877] [2022-03-15 13:55:16,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:16,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:16,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:16,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:16,693 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:16,693 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297861877] [2022-03-15 13:55:16,693 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297861877] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:16,693 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:16,693 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:16,693 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603942449] [2022-03-15 13:55:16,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:16,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:16,694 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:16,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:16,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:16,694 INFO L87 Difference]: Start difference. First operand 7321 states and 19365 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:17,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:17,078 INFO L93 Difference]: Finished difference Result 8405 states and 22190 transitions. [2022-03-15 13:55:17,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:55:17,078 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:17,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:17,087 INFO L225 Difference]: With dead ends: 8405 [2022-03-15 13:55:17,087 INFO L226 Difference]: Without dead ends: 7917 [2022-03-15 13:55:17,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=325, Invalid=1081, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:55:17,088 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 220 mSDsluCounter, 2448 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 2630 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:17,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 2630 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:17,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7917 states. [2022-03-15 13:55:17,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7917 to 7309. [2022-03-15 13:55:17,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.646414887794198) internal successors, (19340), 7308 states have internal predecessors, (19340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:17,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19340 transitions. [2022-03-15 13:55:17,175 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19340 transitions. Word has length 109 [2022-03-15 13:55:17,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:17,175 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19340 transitions. [2022-03-15 13:55:17,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:17,176 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19340 transitions. [2022-03-15 13:55:17,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:17,183 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:17,183 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:17,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable514 [2022-03-15 13:55:17,183 INFO L402 AbstractCegarLoop]: === Iteration 516 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:17,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:17,183 INFO L85 PathProgramCache]: Analyzing trace with hash -192231078, now seen corresponding path program 214 times [2022-03-15 13:55:17,183 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:17,183 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950590578] [2022-03-15 13:55:17,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:17,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:17,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:17,291 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:17,291 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950590578] [2022-03-15 13:55:17,291 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950590578] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:17,291 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:17,291 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:17,291 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310433001] [2022-03-15 13:55:17,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:17,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:17,292 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:17,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:17,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:17,292 INFO L87 Difference]: Start difference. First operand 7309 states and 19340 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:17,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:17,899 INFO L93 Difference]: Finished difference Result 8628 states and 22759 transitions. [2022-03-15 13:55:17,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-15 13:55:17,900 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:17,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:17,911 INFO L225 Difference]: With dead ends: 8628 [2022-03-15 13:55:17,911 INFO L226 Difference]: Without dead ends: 8063 [2022-03-15 13:55:17,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 630 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=611, Invalid=1839, Unknown=0, NotChecked=0, Total=2450 [2022-03-15 13:55:17,912 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 366 mSDsluCounter, 2655 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 2825 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:17,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [366 Valid, 2825 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:17,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8063 states. [2022-03-15 13:55:17,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8063 to 7313. [2022-03-15 13:55:17,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6459245076586435) internal successors, (19347), 7312 states have internal predecessors, (19347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:18,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19347 transitions. [2022-03-15 13:55:18,007 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19347 transitions. Word has length 109 [2022-03-15 13:55:18,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:18,007 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19347 transitions. [2022-03-15 13:55:18,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:18,007 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19347 transitions. [2022-03-15 13:55:18,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:18,035 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:18,035 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:18,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable515 [2022-03-15 13:55:18,035 INFO L402 AbstractCegarLoop]: === Iteration 517 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:18,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:18,035 INFO L85 PathProgramCache]: Analyzing trace with hash 672199984, now seen corresponding path program 215 times [2022-03-15 13:55:18,035 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:18,035 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915099770] [2022-03-15 13:55:18,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:18,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:18,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:18,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:18,141 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:18,141 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915099770] [2022-03-15 13:55:18,141 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915099770] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:18,141 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:18,141 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:18,141 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599462475] [2022-03-15 13:55:18,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:18,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:18,141 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:18,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:18,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:18,141 INFO L87 Difference]: Start difference. First operand 7313 states and 19347 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:18,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:18,667 INFO L93 Difference]: Finished difference Result 8515 states and 22463 transitions. [2022-03-15 13:55:18,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:55:18,668 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:18,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:18,678 INFO L225 Difference]: With dead ends: 8515 [2022-03-15 13:55:18,679 INFO L226 Difference]: Without dead ends: 7993 [2022-03-15 13:55:18,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=472, Invalid=1508, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 13:55:18,679 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 305 mSDsluCounter, 2594 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 2769 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:18,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 2769 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:18,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7993 states. [2022-03-15 13:55:18,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7993 to 7317. [2022-03-15 13:55:18,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6454346637506836) internal successors, (19354), 7316 states have internal predecessors, (19354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:18,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19354 transitions. [2022-03-15 13:55:18,776 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19354 transitions. Word has length 109 [2022-03-15 13:55:18,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:18,776 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19354 transitions. [2022-03-15 13:55:18,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:18,776 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19354 transitions. [2022-03-15 13:55:18,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:18,784 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:18,784 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:18,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable516 [2022-03-15 13:55:18,784 INFO L402 AbstractCegarLoop]: === Iteration 518 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:18,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:18,784 INFO L85 PathProgramCache]: Analyzing trace with hash -885715366, now seen corresponding path program 216 times [2022-03-15 13:55:18,785 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:18,785 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153783221] [2022-03-15 13:55:18,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:18,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:18,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:18,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:18,891 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:18,891 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153783221] [2022-03-15 13:55:18,891 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153783221] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:18,891 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:18,891 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:18,891 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832203489] [2022-03-15 13:55:18,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:18,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:18,891 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:18,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:18,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:18,891 INFO L87 Difference]: Start difference. First operand 7317 states and 19354 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:19,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:19,296 INFO L93 Difference]: Finished difference Result 8375 states and 22099 transitions. [2022-03-15 13:55:19,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:55:19,296 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:19,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:19,306 INFO L225 Difference]: With dead ends: 8375 [2022-03-15 13:55:19,306 INFO L226 Difference]: Without dead ends: 7896 [2022-03-15 13:55:19,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=320, Invalid=1012, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:55:19,307 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 240 mSDsluCounter, 2484 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 2658 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:19,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 2658 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:19,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7896 states. [2022-03-15 13:55:19,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7896 to 7321. [2022-03-15 13:55:19,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.6449453551912567) internal successors, (19361), 7320 states have internal predecessors, (19361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:19,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19361 transitions. [2022-03-15 13:55:19,400 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19361 transitions. Word has length 109 [2022-03-15 13:55:19,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:19,400 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19361 transitions. [2022-03-15 13:55:19,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:19,400 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19361 transitions. [2022-03-15 13:55:19,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:19,408 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:19,408 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:19,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable517 [2022-03-15 13:55:19,409 INFO L402 AbstractCegarLoop]: === Iteration 519 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:19,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:19,409 INFO L85 PathProgramCache]: Analyzing trace with hash 741807752, now seen corresponding path program 217 times [2022-03-15 13:55:19,409 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:19,409 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561749512] [2022-03-15 13:55:19,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:19,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:19,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:19,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:19,518 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:19,518 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561749512] [2022-03-15 13:55:19,518 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561749512] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:19,518 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:19,518 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:19,518 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115366255] [2022-03-15 13:55:19,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:19,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:19,518 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:19,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:19,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:19,519 INFO L87 Difference]: Start difference. First operand 7321 states and 19361 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:19,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:19,890 INFO L93 Difference]: Finished difference Result 8265 states and 21801 transitions. [2022-03-15 13:55:19,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:55:19,890 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:19,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:19,901 INFO L225 Difference]: With dead ends: 8265 [2022-03-15 13:55:19,901 INFO L226 Difference]: Without dead ends: 7765 [2022-03-15 13:55:19,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=306, Invalid=954, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:55:19,902 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 223 mSDsluCounter, 2143 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 2327 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:19,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 2327 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:19,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7765 states. [2022-03-15 13:55:19,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7765 to 7297. [2022-03-15 13:55:19,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7297 states, 7296 states have (on average 2.64734100877193) internal successors, (19315), 7296 states have internal predecessors, (19315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:20,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7297 states to 7297 states and 19315 transitions. [2022-03-15 13:55:20,004 INFO L78 Accepts]: Start accepts. Automaton has 7297 states and 19315 transitions. Word has length 109 [2022-03-15 13:55:20,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:20,004 INFO L470 AbstractCegarLoop]: Abstraction has 7297 states and 19315 transitions. [2022-03-15 13:55:20,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:20,005 INFO L276 IsEmpty]: Start isEmpty. Operand 7297 states and 19315 transitions. [2022-03-15 13:55:20,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:20,016 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:20,016 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:20,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable518 [2022-03-15 13:55:20,016 INFO L402 AbstractCegarLoop]: === Iteration 520 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:20,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:20,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1547592560, now seen corresponding path program 218 times [2022-03-15 13:55:20,017 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:20,017 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794326184] [2022-03-15 13:55:20,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:20,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:20,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:20,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:20,127 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:20,127 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794326184] [2022-03-15 13:55:20,127 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794326184] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:20,127 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:20,127 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:20,127 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502151913] [2022-03-15 13:55:20,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:20,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:20,127 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:20,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:20,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:20,128 INFO L87 Difference]: Start difference. First operand 7297 states and 19315 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:20,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:20,481 INFO L93 Difference]: Finished difference Result 8303 states and 21917 transitions. [2022-03-15 13:55:20,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:55:20,481 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:20,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:20,490 INFO L225 Difference]: With dead ends: 8303 [2022-03-15 13:55:20,490 INFO L226 Difference]: Without dead ends: 7824 [2022-03-15 13:55:20,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=290, Invalid=900, Unknown=0, NotChecked=0, Total=1190 [2022-03-15 13:55:20,491 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 246 mSDsluCounter, 1926 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 2114 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:20,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 2114 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:20,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7824 states. [2022-03-15 13:55:20,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7824 to 7317. [2022-03-15 13:55:20,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6470749043193003) internal successors, (19366), 7316 states have internal predecessors, (19366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:20,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19366 transitions. [2022-03-15 13:55:20,578 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19366 transitions. Word has length 109 [2022-03-15 13:55:20,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:20,578 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19366 transitions. [2022-03-15 13:55:20,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:20,578 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19366 transitions. [2022-03-15 13:55:20,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:20,585 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:20,585 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:20,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable519 [2022-03-15 13:55:20,585 INFO L402 AbstractCegarLoop]: === Iteration 521 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:20,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:20,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1119851618, now seen corresponding path program 219 times [2022-03-15 13:55:20,586 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:20,586 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735836000] [2022-03-15 13:55:20,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:20,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:20,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:20,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:20,695 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:20,695 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735836000] [2022-03-15 13:55:20,695 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735836000] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:20,695 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:20,695 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:20,695 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203910981] [2022-03-15 13:55:20,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:20,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:20,695 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:20,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:20,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:20,695 INFO L87 Difference]: Start difference. First operand 7317 states and 19366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:21,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:21,123 INFO L93 Difference]: Finished difference Result 8269 states and 21828 transitions. [2022-03-15 13:55:21,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:55:21,123 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:21,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:21,132 INFO L225 Difference]: With dead ends: 8269 [2022-03-15 13:55:21,132 INFO L226 Difference]: Without dead ends: 7789 [2022-03-15 13:55:21,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=334, Invalid=1072, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:55:21,133 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 205 mSDsluCounter, 2453 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 2639 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:21,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 2639 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:21,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7789 states. [2022-03-15 13:55:21,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7789 to 7313. [2022-03-15 13:55:21,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6470185995623634) internal successors, (19355), 7312 states have internal predecessors, (19355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:21,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19355 transitions. [2022-03-15 13:55:21,229 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19355 transitions. Word has length 109 [2022-03-15 13:55:21,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:21,229 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19355 transitions. [2022-03-15 13:55:21,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:21,230 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19355 transitions. [2022-03-15 13:55:21,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:21,237 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:21,237 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:21,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable520 [2022-03-15 13:55:21,238 INFO L402 AbstractCegarLoop]: === Iteration 522 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:21,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:21,238 INFO L85 PathProgramCache]: Analyzing trace with hash 2054058338, now seen corresponding path program 220 times [2022-03-15 13:55:21,238 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:21,238 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826332591] [2022-03-15 13:55:21,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:21,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:21,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:21,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:21,344 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:21,344 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826332591] [2022-03-15 13:55:21,344 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826332591] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:21,344 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:21,344 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:21,344 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923144395] [2022-03-15 13:55:21,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:21,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:21,345 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:21,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:21,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:21,345 INFO L87 Difference]: Start difference. First operand 7313 states and 19355 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:21,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:21,843 INFO L93 Difference]: Finished difference Result 8305 states and 21923 transitions. [2022-03-15 13:55:21,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:55:21,843 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:21,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:21,852 INFO L225 Difference]: With dead ends: 8305 [2022-03-15 13:55:21,852 INFO L226 Difference]: Without dead ends: 7785 [2022-03-15 13:55:21,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=502, Invalid=1660, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 13:55:21,853 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 296 mSDsluCounter, 2389 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 2585 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:21,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [296 Valid, 2585 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:21,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7785 states. [2022-03-15 13:55:21,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7785 to 7309. [2022-03-15 13:55:21,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.6469622331691296) internal successors, (19344), 7308 states have internal predecessors, (19344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:21,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19344 transitions. [2022-03-15 13:55:21,940 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19344 transitions. Word has length 109 [2022-03-15 13:55:21,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:21,940 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19344 transitions. [2022-03-15 13:55:21,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:21,941 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19344 transitions. [2022-03-15 13:55:21,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:21,948 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:21,948 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:21,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable521 [2022-03-15 13:55:21,948 INFO L402 AbstractCegarLoop]: === Iteration 523 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:21,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:21,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1528922802, now seen corresponding path program 221 times [2022-03-15 13:55:21,948 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:21,948 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97781985] [2022-03-15 13:55:21,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:21,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:21,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:22,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:22,056 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:22,057 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97781985] [2022-03-15 13:55:22,057 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97781985] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:22,057 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:22,057 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:22,057 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788802270] [2022-03-15 13:55:22,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:22,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:22,057 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:22,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:22,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:22,057 INFO L87 Difference]: Start difference. First operand 7309 states and 19344 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:22,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:22,620 INFO L93 Difference]: Finished difference Result 8281 states and 21857 transitions. [2022-03-15 13:55:22,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-15 13:55:22,620 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:22,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:22,629 INFO L225 Difference]: With dead ends: 8281 [2022-03-15 13:55:22,629 INFO L226 Difference]: Without dead ends: 7721 [2022-03-15 13:55:22,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 644 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=654, Invalid=1998, Unknown=0, NotChecked=0, Total=2652 [2022-03-15 13:55:22,630 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 342 mSDsluCounter, 2513 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 2704 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:22,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [342 Valid, 2704 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:22,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7721 states. [2022-03-15 13:55:22,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7721 to 7305. [2022-03-15 13:55:22,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7305 states, 7304 states have (on average 2.646905805038335) internal successors, (19333), 7304 states have internal predecessors, (19333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:22,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7305 states to 7305 states and 19333 transitions. [2022-03-15 13:55:22,717 INFO L78 Accepts]: Start accepts. Automaton has 7305 states and 19333 transitions. Word has length 109 [2022-03-15 13:55:22,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:22,717 INFO L470 AbstractCegarLoop]: Abstraction has 7305 states and 19333 transitions. [2022-03-15 13:55:22,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:22,717 INFO L276 IsEmpty]: Start isEmpty. Operand 7305 states and 19333 transitions. [2022-03-15 13:55:22,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:22,725 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:22,725 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:22,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable522 [2022-03-15 13:55:22,725 INFO L402 AbstractCegarLoop]: === Iteration 524 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:22,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:22,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1338609398, now seen corresponding path program 222 times [2022-03-15 13:55:22,725 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:22,725 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244504193] [2022-03-15 13:55:22,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:22,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:22,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:22,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:22,837 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:22,837 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244504193] [2022-03-15 13:55:22,837 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244504193] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:22,837 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:22,837 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:22,837 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169695821] [2022-03-15 13:55:22,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:22,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:22,837 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:22,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:22,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:22,838 INFO L87 Difference]: Start difference. First operand 7305 states and 19333 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:23,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:23,220 INFO L93 Difference]: Finished difference Result 8351 states and 22049 transitions. [2022-03-15 13:55:23,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:55:23,221 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:23,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:23,231 INFO L225 Difference]: With dead ends: 8351 [2022-03-15 13:55:23,231 INFO L226 Difference]: Without dead ends: 7872 [2022-03-15 13:55:23,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=306, Invalid=954, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:55:23,232 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 276 mSDsluCounter, 1914 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 2100 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:23,232 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [276 Valid, 2100 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:23,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7872 states. [2022-03-15 13:55:23,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7872 to 7317. [2022-03-15 13:55:23,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6465281574630946) internal successors, (19362), 7316 states have internal predecessors, (19362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:23,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19362 transitions. [2022-03-15 13:55:23,331 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19362 transitions. Word has length 109 [2022-03-15 13:55:23,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:23,332 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19362 transitions. [2022-03-15 13:55:23,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:23,332 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19362 transitions. [2022-03-15 13:55:23,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:23,339 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:23,339 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:23,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable523 [2022-03-15 13:55:23,340 INFO L402 AbstractCegarLoop]: === Iteration 525 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:23,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:23,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1328834780, now seen corresponding path program 223 times [2022-03-15 13:55:23,340 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:23,340 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887626067] [2022-03-15 13:55:23,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:23,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:23,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:23,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:23,451 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:23,451 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887626067] [2022-03-15 13:55:23,451 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887626067] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:23,451 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:23,451 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:23,451 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052600567] [2022-03-15 13:55:23,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:23,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:23,452 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:23,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:23,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:23,452 INFO L87 Difference]: Start difference. First operand 7317 states and 19362 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:23,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:23,872 INFO L93 Difference]: Finished difference Result 8309 states and 21938 transitions. [2022-03-15 13:55:23,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:55:23,872 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:23,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:23,882 INFO L225 Difference]: With dead ends: 8309 [2022-03-15 13:55:23,882 INFO L226 Difference]: Without dead ends: 7829 [2022-03-15 13:55:23,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:55:23,882 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 263 mSDsluCounter, 2288 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 2474 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:23,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 2474 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:23,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7829 states. [2022-03-15 13:55:23,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7829 to 7313. [2022-03-15 13:55:23,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6464715536105032) internal successors, (19351), 7312 states have internal predecessors, (19351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:23,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19351 transitions. [2022-03-15 13:55:23,968 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19351 transitions. Word has length 109 [2022-03-15 13:55:23,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:23,969 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19351 transitions. [2022-03-15 13:55:23,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:23,969 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19351 transitions. [2022-03-15 13:55:23,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:23,977 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:23,977 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:23,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable524 [2022-03-15 13:55:23,977 INFO L402 AbstractCegarLoop]: === Iteration 526 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:23,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:23,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1845075176, now seen corresponding path program 224 times [2022-03-15 13:55:23,978 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:23,978 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370058385] [2022-03-15 13:55:23,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:23,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:23,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:24,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:24,083 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:24,083 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370058385] [2022-03-15 13:55:24,083 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370058385] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:24,083 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:24,083 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:24,083 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232012123] [2022-03-15 13:55:24,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:24,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:24,084 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:24,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:24,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:24,084 INFO L87 Difference]: Start difference. First operand 7313 states and 19351 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:24,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:24,558 INFO L93 Difference]: Finished difference Result 8437 states and 22270 transitions. [2022-03-15 13:55:24,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:55:24,558 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:24,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:24,568 INFO L225 Difference]: With dead ends: 8437 [2022-03-15 13:55:24,568 INFO L226 Difference]: Without dead ends: 7917 [2022-03-15 13:55:24,568 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=490, Invalid=1580, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:55:24,569 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 310 mSDsluCounter, 2437 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 2618 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:24,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [310 Valid, 2618 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:24,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7917 states. [2022-03-15 13:55:24,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7917 to 7309. [2022-03-15 13:55:24,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.646414887794198) internal successors, (19340), 7308 states have internal predecessors, (19340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:24,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19340 transitions. [2022-03-15 13:55:24,663 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19340 transitions. Word has length 109 [2022-03-15 13:55:24,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:24,664 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19340 transitions. [2022-03-15 13:55:24,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:24,664 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19340 transitions. [2022-03-15 13:55:24,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:24,672 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:24,672 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:24,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable525 [2022-03-15 13:55:24,672 INFO L402 AbstractCegarLoop]: === Iteration 527 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:24,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:24,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1917704900, now seen corresponding path program 225 times [2022-03-15 13:55:24,672 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:24,672 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987919386] [2022-03-15 13:55:24,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:24,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:24,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:24,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:24,782 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:24,782 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987919386] [2022-03-15 13:55:24,782 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987919386] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:24,782 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:24,782 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:24,782 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438029222] [2022-03-15 13:55:24,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:24,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:24,783 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:24,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:24,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:24,783 INFO L87 Difference]: Start difference. First operand 7309 states and 19340 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:25,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:25,274 INFO L93 Difference]: Finished difference Result 8439 states and 22262 transitions. [2022-03-15 13:55:25,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-15 13:55:25,274 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:25,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:25,285 INFO L225 Difference]: With dead ends: 8439 [2022-03-15 13:55:25,285 INFO L226 Difference]: Without dead ends: 7917 [2022-03-15 13:55:25,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=438, Invalid=1368, Unknown=0, NotChecked=0, Total=1806 [2022-03-15 13:55:25,285 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 292 mSDsluCounter, 2145 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 2328 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:25,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [292 Valid, 2328 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:25,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7917 states. [2022-03-15 13:55:25,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7917 to 7313. [2022-03-15 13:55:25,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6459245076586435) internal successors, (19347), 7312 states have internal predecessors, (19347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:25,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19347 transitions. [2022-03-15 13:55:25,378 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19347 transitions. Word has length 109 [2022-03-15 13:55:25,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:25,378 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19347 transitions. [2022-03-15 13:55:25,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:25,378 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19347 transitions. [2022-03-15 13:55:25,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:25,386 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:25,386 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:25,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable526 [2022-03-15 13:55:25,386 INFO L402 AbstractCegarLoop]: === Iteration 528 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:25,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:25,387 INFO L85 PathProgramCache]: Analyzing trace with hash 359789550, now seen corresponding path program 226 times [2022-03-15 13:55:25,387 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:25,387 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210591283] [2022-03-15 13:55:25,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:25,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:25,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:25,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:25,496 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:25,496 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210591283] [2022-03-15 13:55:25,496 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210591283] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:25,496 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:25,496 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:25,496 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811690544] [2022-03-15 13:55:25,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:25,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:25,496 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:25,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:25,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:25,497 INFO L87 Difference]: Start difference. First operand 7313 states and 19347 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:25,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:25,894 INFO L93 Difference]: Finished difference Result 8291 states and 21876 transitions. [2022-03-15 13:55:25,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:55:25,894 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:25,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:25,906 INFO L225 Difference]: With dead ends: 8291 [2022-03-15 13:55:25,906 INFO L226 Difference]: Without dead ends: 7812 [2022-03-15 13:55:25,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=324, Invalid=1008, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:55:25,906 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 228 mSDsluCounter, 2071 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 2256 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:25,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 2256 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:25,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7812 states. [2022-03-15 13:55:25,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7812 to 7317. [2022-03-15 13:55:25,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6454346637506836) internal successors, (19354), 7316 states have internal predecessors, (19354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:26,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19354 transitions. [2022-03-15 13:55:26,007 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19354 transitions. Word has length 109 [2022-03-15 13:55:26,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:26,007 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19354 transitions. [2022-03-15 13:55:26,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:26,008 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19354 transitions. [2022-03-15 13:55:26,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:26,015 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:26,015 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:26,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable527 [2022-03-15 13:55:26,015 INFO L402 AbstractCegarLoop]: === Iteration 529 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:26,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:26,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1987312668, now seen corresponding path program 227 times [2022-03-15 13:55:26,016 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:26,016 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83239548] [2022-03-15 13:55:26,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:26,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:26,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:26,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:26,127 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:26,127 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83239548] [2022-03-15 13:55:26,127 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83239548] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:26,127 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:26,127 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:26,127 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319757247] [2022-03-15 13:55:26,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:26,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:26,127 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:26,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:26,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:26,128 INFO L87 Difference]: Start difference. First operand 7317 states and 19354 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:26,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:26,530 INFO L93 Difference]: Finished difference Result 8209 states and 21655 transitions. [2022-03-15 13:55:26,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:55:26,531 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:26,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:26,540 INFO L225 Difference]: With dead ends: 8209 [2022-03-15 13:55:26,540 INFO L226 Difference]: Without dead ends: 7717 [2022-03-15 13:55:26,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=321, Invalid=1011, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:55:26,541 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 235 mSDsluCounter, 2269 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 2452 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:26,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 2452 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:26,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7717 states. [2022-03-15 13:55:26,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7717 to 7301. [2022-03-15 13:55:26,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7301 states, 7300 states have (on average 2.646849315068493) internal successors, (19322), 7300 states have internal predecessors, (19322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:26,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7301 states to 7301 states and 19322 transitions. [2022-03-15 13:55:26,631 INFO L78 Accepts]: Start accepts. Automaton has 7301 states and 19322 transitions. Word has length 109 [2022-03-15 13:55:26,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:26,631 INFO L470 AbstractCegarLoop]: Abstraction has 7301 states and 19322 transitions. [2022-03-15 13:55:26,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:26,631 INFO L276 IsEmpty]: Start isEmpty. Operand 7301 states and 19322 transitions. [2022-03-15 13:55:26,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:26,639 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:26,639 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:26,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable528 [2022-03-15 13:55:26,639 INFO L402 AbstractCegarLoop]: === Iteration 530 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:26,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:26,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1290573294, now seen corresponding path program 228 times [2022-03-15 13:55:26,639 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:26,639 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989314352] [2022-03-15 13:55:26,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:26,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:26,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:26,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:26,752 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:26,752 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989314352] [2022-03-15 13:55:26,752 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989314352] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:26,752 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:26,752 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:26,752 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051464393] [2022-03-15 13:55:26,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:26,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:26,752 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:26,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:26,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:26,753 INFO L87 Difference]: Start difference. First operand 7301 states and 19322 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:27,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:27,127 INFO L93 Difference]: Finished difference Result 8387 states and 22148 transitions. [2022-03-15 13:55:27,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:55:27,127 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:27,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:27,137 INFO L225 Difference]: With dead ends: 8387 [2022-03-15 13:55:27,137 INFO L226 Difference]: Without dead ends: 7908 [2022-03-15 13:55:27,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=301, Invalid=959, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:55:27,137 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 282 mSDsluCounter, 1906 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 2090 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:27,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 2090 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:27,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7908 states. [2022-03-15 13:55:27,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7908 to 7317. [2022-03-15 13:55:27,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6465281574630946) internal successors, (19362), 7316 states have internal predecessors, (19362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:27,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19362 transitions. [2022-03-15 13:55:27,230 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19362 transitions. Word has length 109 [2022-03-15 13:55:27,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:27,231 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19362 transitions. [2022-03-15 13:55:27,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:27,231 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19362 transitions. [2022-03-15 13:55:27,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:27,238 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:27,238 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:27,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable529 [2022-03-15 13:55:27,238 INFO L402 AbstractCegarLoop]: === Iteration 531 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:27,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:27,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1376870884, now seen corresponding path program 229 times [2022-03-15 13:55:27,239 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:27,239 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308583479] [2022-03-15 13:55:27,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:27,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:27,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:27,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:27,345 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:27,345 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308583479] [2022-03-15 13:55:27,345 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308583479] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:27,345 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:27,345 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:27,345 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243067957] [2022-03-15 13:55:27,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:27,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:27,346 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:27,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:27,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:27,346 INFO L87 Difference]: Start difference. First operand 7317 states and 19362 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:27,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:27,756 INFO L93 Difference]: Finished difference Result 8345 states and 22037 transitions. [2022-03-15 13:55:27,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:55:27,756 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:27,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:27,766 INFO L225 Difference]: With dead ends: 8345 [2022-03-15 13:55:27,766 INFO L226 Difference]: Without dead ends: 7865 [2022-03-15 13:55:27,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=347, Invalid=1135, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:55:27,767 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 263 mSDsluCounter, 2274 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 2458 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:27,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 2458 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:27,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7865 states. [2022-03-15 13:55:27,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7865 to 7313. [2022-03-15 13:55:27,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6464715536105032) internal successors, (19351), 7312 states have internal predecessors, (19351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:27,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19351 transitions. [2022-03-15 13:55:27,858 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19351 transitions. Word has length 109 [2022-03-15 13:55:27,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:27,858 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19351 transitions. [2022-03-15 13:55:27,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:27,859 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19351 transitions. [2022-03-15 13:55:27,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:27,866 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:27,866 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:27,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable530 [2022-03-15 13:55:27,866 INFO L402 AbstractCegarLoop]: === Iteration 532 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:27,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:27,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1797039072, now seen corresponding path program 230 times [2022-03-15 13:55:27,867 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:27,867 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35910010] [2022-03-15 13:55:27,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:27,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:27,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:27,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:27,975 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:27,975 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35910010] [2022-03-15 13:55:27,975 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35910010] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:27,975 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:27,975 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:27,975 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217063872] [2022-03-15 13:55:27,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:27,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:27,976 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:27,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:27,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:27,976 INFO L87 Difference]: Start difference. First operand 7313 states and 19351 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:28,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:28,460 INFO L93 Difference]: Finished difference Result 8453 states and 22314 transitions. [2022-03-15 13:55:28,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-15 13:55:28,460 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:28,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:28,470 INFO L225 Difference]: With dead ends: 8453 [2022-03-15 13:55:28,470 INFO L226 Difference]: Without dead ends: 7933 [2022-03-15 13:55:28,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=479, Invalid=1501, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 13:55:28,471 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 306 mSDsluCounter, 2423 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 2602 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:28,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [306 Valid, 2602 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:28,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7933 states. [2022-03-15 13:55:28,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7933 to 7309. [2022-03-15 13:55:28,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.646414887794198) internal successors, (19340), 7308 states have internal predecessors, (19340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:28,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19340 transitions. [2022-03-15 13:55:28,568 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19340 transitions. Word has length 109 [2022-03-15 13:55:28,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:28,568 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19340 transitions. [2022-03-15 13:55:28,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:28,568 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19340 transitions. [2022-03-15 13:55:28,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:28,578 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:28,578 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:28,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable531 [2022-03-15 13:55:28,578 INFO L402 AbstractCegarLoop]: === Iteration 533 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:28,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:28,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1869668796, now seen corresponding path program 231 times [2022-03-15 13:55:28,578 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:28,578 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34877096] [2022-03-15 13:55:28,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:28,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:28,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:28,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:28,710 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:28,710 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34877096] [2022-03-15 13:55:28,710 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34877096] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:28,710 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:28,710 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:28,711 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191668184] [2022-03-15 13:55:28,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:28,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:28,711 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:28,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:28,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:28,711 INFO L87 Difference]: Start difference. First operand 7309 states and 19340 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:29,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:29,237 INFO L93 Difference]: Finished difference Result 8551 states and 22570 transitions. [2022-03-15 13:55:29,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:55:29,237 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:29,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:29,272 INFO L225 Difference]: With dead ends: 8551 [2022-03-15 13:55:29,272 INFO L226 Difference]: Without dead ends: 8029 [2022-03-15 13:55:29,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=449, Invalid=1443, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 13:55:29,272 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 302 mSDsluCounter, 2566 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 2738 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:29,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 2738 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:29,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8029 states. [2022-03-15 13:55:29,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8029 to 7313. [2022-03-15 13:55:29,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6459245076586435) internal successors, (19347), 7312 states have internal predecessors, (19347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:29,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19347 transitions. [2022-03-15 13:55:29,352 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19347 transitions. Word has length 109 [2022-03-15 13:55:29,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:29,352 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19347 transitions. [2022-03-15 13:55:29,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:29,352 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19347 transitions. [2022-03-15 13:55:29,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:29,359 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:29,359 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:29,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable532 [2022-03-15 13:55:29,359 INFO L402 AbstractCegarLoop]: === Iteration 534 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:29,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:29,360 INFO L85 PathProgramCache]: Analyzing trace with hash 311753446, now seen corresponding path program 232 times [2022-03-15 13:55:29,360 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:29,360 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644208953] [2022-03-15 13:55:29,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:29,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:29,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:29,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:29,475 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:29,475 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644208953] [2022-03-15 13:55:29,475 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644208953] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:29,475 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:29,475 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:29,475 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783422080] [2022-03-15 13:55:29,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:29,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:29,475 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:29,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:29,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:29,476 INFO L87 Difference]: Start difference. First operand 7313 states and 19347 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:29,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:29,871 INFO L93 Difference]: Finished difference Result 8387 states and 22140 transitions. [2022-03-15 13:55:29,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:55:29,872 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:29,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:29,880 INFO L225 Difference]: With dead ends: 8387 [2022-03-15 13:55:29,880 INFO L226 Difference]: Without dead ends: 7908 [2022-03-15 13:55:29,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=319, Invalid=1013, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:55:29,881 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 237 mSDsluCounter, 2268 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 2448 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:29,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 2448 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:29,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7908 states. [2022-03-15 13:55:29,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7908 to 7317. [2022-03-15 13:55:29,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6454346637506836) internal successors, (19354), 7316 states have internal predecessors, (19354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:29,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19354 transitions. [2022-03-15 13:55:29,964 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19354 transitions. Word has length 109 [2022-03-15 13:55:29,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:29,964 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19354 transitions. [2022-03-15 13:55:29,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:29,965 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19354 transitions. [2022-03-15 13:55:29,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:29,972 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:29,972 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:29,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable533 [2022-03-15 13:55:29,972 INFO L402 AbstractCegarLoop]: === Iteration 535 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:29,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:29,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1939276564, now seen corresponding path program 233 times [2022-03-15 13:55:29,973 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:29,973 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83054766] [2022-03-15 13:55:29,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:29,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:29,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:30,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:30,082 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:30,082 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83054766] [2022-03-15 13:55:30,082 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83054766] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:30,082 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:30,082 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:30,082 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940334492] [2022-03-15 13:55:30,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:30,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:30,083 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:30,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:30,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:30,083 INFO L87 Difference]: Start difference. First operand 7317 states and 19354 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:30,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:30,472 INFO L93 Difference]: Finished difference Result 8321 states and 21963 transitions. [2022-03-15 13:55:30,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:55:30,472 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:30,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:30,480 INFO L225 Difference]: With dead ends: 8321 [2022-03-15 13:55:30,481 INFO L226 Difference]: Without dead ends: 7833 [2022-03-15 13:55:30,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=1006, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:55:30,481 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 215 mSDsluCounter, 2409 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 2588 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:30,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 2588 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:30,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7833 states. [2022-03-15 13:55:30,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7833 to 7305. [2022-03-15 13:55:30,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7305 states, 7304 states have (on average 2.646358159912377) internal successors, (19329), 7304 states have internal predecessors, (19329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:30,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7305 states to 7305 states and 19329 transitions. [2022-03-15 13:55:30,566 INFO L78 Accepts]: Start accepts. Automaton has 7305 states and 19329 transitions. Word has length 109 [2022-03-15 13:55:30,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:30,566 INFO L470 AbstractCegarLoop]: Abstraction has 7305 states and 19329 transitions. [2022-03-15 13:55:30,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:30,566 INFO L276 IsEmpty]: Start isEmpty. Operand 7305 states and 19329 transitions. [2022-03-15 13:55:30,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:30,573 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:30,573 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:30,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable534 [2022-03-15 13:55:30,574 INFO L402 AbstractCegarLoop]: === Iteration 536 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:30,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:30,574 INFO L85 PathProgramCache]: Analyzing trace with hash 656932464, now seen corresponding path program 234 times [2022-03-15 13:55:30,574 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:30,574 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431739067] [2022-03-15 13:55:30,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:30,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:30,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:30,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:30,683 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:30,683 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431739067] [2022-03-15 13:55:30,683 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431739067] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:30,683 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:30,683 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:30,683 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724031295] [2022-03-15 13:55:30,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:30,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:30,683 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:30,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:30,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:30,683 INFO L87 Difference]: Start difference. First operand 7305 states and 19329 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:31,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:31,286 INFO L93 Difference]: Finished difference Result 8572 states and 22609 transitions. [2022-03-15 13:55:31,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-15 13:55:31,286 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:31,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:31,295 INFO L225 Difference]: With dead ends: 8572 [2022-03-15 13:55:31,295 INFO L226 Difference]: Without dead ends: 8007 [2022-03-15 13:55:31,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 657 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=616, Invalid=1934, Unknown=0, NotChecked=0, Total=2550 [2022-03-15 13:55:31,296 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 404 mSDsluCounter, 2035 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 2224 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:31,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [404 Valid, 2224 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:31,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8007 states. [2022-03-15 13:55:31,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8007 to 7309. [2022-03-15 13:55:31,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.6458675424192664) internal successors, (19336), 7308 states have internal predecessors, (19336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:31,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19336 transitions. [2022-03-15 13:55:31,385 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19336 transitions. Word has length 109 [2022-03-15 13:55:31,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:31,385 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19336 transitions. [2022-03-15 13:55:31,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:31,385 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19336 transitions. [2022-03-15 13:55:31,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:31,392 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:31,392 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:31,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable535 [2022-03-15 13:55:31,392 INFO L402 AbstractCegarLoop]: === Iteration 537 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:31,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:31,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1521363526, now seen corresponding path program 235 times [2022-03-15 13:55:31,392 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:31,392 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188209377] [2022-03-15 13:55:31,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:31,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:31,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:31,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:31,505 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:31,505 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188209377] [2022-03-15 13:55:31,505 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188209377] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:31,505 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:31,505 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:31,505 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789893082] [2022-03-15 13:55:31,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:31,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:31,506 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:31,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:31,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:31,506 INFO L87 Difference]: Start difference. First operand 7309 states and 19336 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:32,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:32,035 INFO L93 Difference]: Finished difference Result 8455 states and 22302 transitions. [2022-03-15 13:55:32,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:55:32,035 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:32,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:32,044 INFO L225 Difference]: With dead ends: 8455 [2022-03-15 13:55:32,044 INFO L226 Difference]: Without dead ends: 7933 [2022-03-15 13:55:32,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=461, Invalid=1519, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 13:55:32,045 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 301 mSDsluCounter, 2350 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 2528 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:32,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 2528 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:32,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7933 states. [2022-03-15 13:55:32,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7933 to 7313. [2022-03-15 13:55:32,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6453774617067833) internal successors, (19343), 7312 states have internal predecessors, (19343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:32,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19343 transitions. [2022-03-15 13:55:32,128 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19343 transitions. Word has length 109 [2022-03-15 13:55:32,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:32,128 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19343 transitions. [2022-03-15 13:55:32,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:32,128 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19343 transitions. [2022-03-15 13:55:32,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:32,135 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:32,135 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:32,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable536 [2022-03-15 13:55:32,135 INFO L402 AbstractCegarLoop]: === Iteration 538 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:32,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:32,135 INFO L85 PathProgramCache]: Analyzing trace with hash -36551824, now seen corresponding path program 236 times [2022-03-15 13:55:32,135 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:32,135 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053044561] [2022-03-15 13:55:32,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:32,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:32,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:32,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:32,246 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:32,246 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053044561] [2022-03-15 13:55:32,247 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053044561] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:32,247 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:32,247 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:32,247 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940301744] [2022-03-15 13:55:32,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:32,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:32,247 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:32,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:32,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:32,247 INFO L87 Difference]: Start difference. First operand 7313 states and 19343 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:32,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:32,696 INFO L93 Difference]: Finished difference Result 8307 states and 21916 transitions. [2022-03-15 13:55:32,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:55:32,696 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:32,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:32,705 INFO L225 Difference]: With dead ends: 8307 [2022-03-15 13:55:32,705 INFO L226 Difference]: Without dead ends: 7828 [2022-03-15 13:55:32,705 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=314, Invalid=1018, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:55:32,705 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 263 mSDsluCounter, 2296 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 2471 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:32,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 2471 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:32,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7828 states. [2022-03-15 13:55:32,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7828 to 7317. [2022-03-15 13:55:32,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.644887916894478) internal successors, (19350), 7316 states have internal predecessors, (19350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:32,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19350 transitions. [2022-03-15 13:55:32,787 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19350 transitions. Word has length 109 [2022-03-15 13:55:32,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:32,787 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19350 transitions. [2022-03-15 13:55:32,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:32,787 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19350 transitions. [2022-03-15 13:55:32,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:32,794 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:32,794 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:32,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable537 [2022-03-15 13:55:32,794 INFO L402 AbstractCegarLoop]: === Iteration 539 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:32,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:32,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1590971294, now seen corresponding path program 237 times [2022-03-15 13:55:32,794 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:32,794 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897322430] [2022-03-15 13:55:32,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:32,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:32,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:32,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:32,911 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:32,911 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897322430] [2022-03-15 13:55:32,911 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897322430] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:32,912 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:32,912 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:32,912 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653451022] [2022-03-15 13:55:32,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:32,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:32,912 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:32,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:32,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:32,912 INFO L87 Difference]: Start difference. First operand 7317 states and 19350 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:33,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:33,287 INFO L93 Difference]: Finished difference Result 8209 states and 21651 transitions. [2022-03-15 13:55:33,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:55:33,287 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:33,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:33,298 INFO L225 Difference]: With dead ends: 8209 [2022-03-15 13:55:33,298 INFO L226 Difference]: Without dead ends: 7713 [2022-03-15 13:55:33,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=313, Invalid=1019, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:55:33,299 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 234 mSDsluCounter, 2244 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 2422 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:33,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 2422 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:33,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7713 states. [2022-03-15 13:55:33,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7713 to 7297. [2022-03-15 13:55:33,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7297 states, 7296 states have (on average 2.6467927631578947) internal successors, (19311), 7296 states have internal predecessors, (19311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:33,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7297 states to 7297 states and 19311 transitions. [2022-03-15 13:55:33,400 INFO L78 Accepts]: Start accepts. Automaton has 7297 states and 19311 transitions. Word has length 109 [2022-03-15 13:55:33,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:33,400 INFO L470 AbstractCegarLoop]: Abstraction has 7297 states and 19311 transitions. [2022-03-15 13:55:33,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:33,400 INFO L276 IsEmpty]: Start isEmpty. Operand 7297 states and 19311 transitions. [2022-03-15 13:55:33,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:33,407 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:33,407 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:33,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable538 [2022-03-15 13:55:33,407 INFO L402 AbstractCegarLoop]: === Iteration 540 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:33,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:33,407 INFO L85 PathProgramCache]: Analyzing trace with hash 187059838, now seen corresponding path program 238 times [2022-03-15 13:55:33,407 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:33,407 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777513739] [2022-03-15 13:55:33,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:33,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:33,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:33,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:33,530 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:33,530 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777513739] [2022-03-15 13:55:33,530 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777513739] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:33,530 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:33,530 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:33,530 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153424070] [2022-03-15 13:55:33,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:33,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:33,530 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:33,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:33,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:33,531 INFO L87 Difference]: Start difference. First operand 7297 states and 19311 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:33,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:33,911 INFO L93 Difference]: Finished difference Result 8243 states and 21752 transitions. [2022-03-15 13:55:33,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:55:33,912 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:33,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:33,921 INFO L225 Difference]: With dead ends: 8243 [2022-03-15 13:55:33,921 INFO L226 Difference]: Without dead ends: 7764 [2022-03-15 13:55:33,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=299, Invalid=1033, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:55:33,921 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 291 mSDsluCounter, 2272 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 2444 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:33,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 2444 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:33,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7764 states. [2022-03-15 13:55:33,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7764 to 7313. [2022-03-15 13:55:34,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6464715536105032) internal successors, (19351), 7312 states have internal predecessors, (19351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:34,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19351 transitions. [2022-03-15 13:55:34,013 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19351 transitions. Word has length 109 [2022-03-15 13:55:34,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:34,013 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19351 transitions. [2022-03-15 13:55:34,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:34,013 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19351 transitions. [2022-03-15 13:55:34,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:34,021 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:34,021 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:34,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable539 [2022-03-15 13:55:34,021 INFO L402 AbstractCegarLoop]: === Iteration 541 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:34,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:34,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1814582956, now seen corresponding path program 239 times [2022-03-15 13:55:34,022 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:34,022 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266348458] [2022-03-15 13:55:34,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:34,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:34,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:34,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:34,130 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:34,130 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266348458] [2022-03-15 13:55:34,130 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266348458] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:34,130 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:34,130 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:34,130 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818591690] [2022-03-15 13:55:34,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:34,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:34,130 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:34,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:34,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:34,130 INFO L87 Difference]: Start difference. First operand 7313 states and 19351 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:34,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:34,531 INFO L93 Difference]: Finished difference Result 8201 states and 21641 transitions. [2022-03-15 13:55:34,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:55:34,532 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:34,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:34,541 INFO L225 Difference]: With dead ends: 8201 [2022-03-15 13:55:34,541 INFO L226 Difference]: Without dead ends: 7721 [2022-03-15 13:55:34,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=352, Invalid=1130, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 13:55:34,542 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 225 mSDsluCounter, 2396 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 2575 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:34,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 2575 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:34,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7721 states. [2022-03-15 13:55:34,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7721 to 7309. [2022-03-15 13:55:34,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.646414887794198) internal successors, (19340), 7308 states have internal predecessors, (19340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:34,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19340 transitions. [2022-03-15 13:55:34,649 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19340 transitions. Word has length 109 [2022-03-15 13:55:34,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:34,649 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19340 transitions. [2022-03-15 13:55:34,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:34,649 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19340 transitions. [2022-03-15 13:55:34,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:34,656 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:34,656 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:34,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable540 [2022-03-15 13:55:34,657 INFO L402 AbstractCegarLoop]: === Iteration 542 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:34,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:34,657 INFO L85 PathProgramCache]: Analyzing trace with hash 693525616, now seen corresponding path program 240 times [2022-03-15 13:55:34,657 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:34,657 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372059763] [2022-03-15 13:55:34,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:34,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:34,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:34,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:34,761 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:34,761 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372059763] [2022-03-15 13:55:34,761 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372059763] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:34,761 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:34,761 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:34,761 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217920176] [2022-03-15 13:55:34,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:34,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:34,761 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:34,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:34,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:34,762 INFO L87 Difference]: Start difference. First operand 7309 states and 19340 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:35,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:35,205 INFO L93 Difference]: Finished difference Result 8189 states and 21608 transitions. [2022-03-15 13:55:35,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-15 13:55:35,205 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:35,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:35,214 INFO L225 Difference]: With dead ends: 8189 [2022-03-15 13:55:35,214 INFO L226 Difference]: Without dead ends: 7669 [2022-03-15 13:55:35,215 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=469, Invalid=1423, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 13:55:35,215 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 302 mSDsluCounter, 2393 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 2570 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:35,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 2570 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:35,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7669 states. [2022-03-15 13:55:35,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7669 to 7305. [2022-03-15 13:55:35,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7305 states, 7304 states have (on average 2.646358159912377) internal successors, (19329), 7304 states have internal predecessors, (19329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:35,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7305 states to 7305 states and 19329 transitions. [2022-03-15 13:55:35,299 INFO L78 Accepts]: Start accepts. Automaton has 7305 states and 19329 transitions. Word has length 109 [2022-03-15 13:55:35,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:35,300 INFO L470 AbstractCegarLoop]: Abstraction has 7305 states and 19329 transitions. [2022-03-15 13:55:35,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:35,300 INFO L276 IsEmpty]: Start isEmpty. Operand 7305 states and 19329 transitions. [2022-03-15 13:55:35,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:35,307 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:35,307 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:35,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable541 [2022-03-15 13:55:35,307 INFO L402 AbstractCegarLoop]: === Iteration 543 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:35,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:35,307 INFO L85 PathProgramCache]: Analyzing trace with hash 766155340, now seen corresponding path program 241 times [2022-03-15 13:55:35,307 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:35,307 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119226373] [2022-03-15 13:55:35,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:35,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:35,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:35,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:35,416 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:35,416 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119226373] [2022-03-15 13:55:35,416 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119226373] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:35,416 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:35,416 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:35,416 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304878367] [2022-03-15 13:55:35,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:35,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:35,416 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:35,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:35,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:35,416 INFO L87 Difference]: Start difference. First operand 7305 states and 19329 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:35,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:35,923 INFO L93 Difference]: Finished difference Result 8383 states and 22112 transitions. [2022-03-15 13:55:35,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:55:35,923 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:35,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:35,933 INFO L225 Difference]: With dead ends: 8383 [2022-03-15 13:55:35,933 INFO L226 Difference]: Without dead ends: 7861 [2022-03-15 13:55:35,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=439, Invalid=1453, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 13:55:35,934 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 346 mSDsluCounter, 2514 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 2678 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:35,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [346 Valid, 2678 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:35,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7861 states. [2022-03-15 13:55:36,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7861 to 7309. [2022-03-15 13:55:36,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.6458675424192664) internal successors, (19336), 7308 states have internal predecessors, (19336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:36,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19336 transitions. [2022-03-15 13:55:36,024 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19336 transitions. Word has length 109 [2022-03-15 13:55:36,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:36,024 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19336 transitions. [2022-03-15 13:55:36,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:36,024 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19336 transitions. [2022-03-15 13:55:36,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:36,032 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:36,032 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:36,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable542 [2022-03-15 13:55:36,032 INFO L402 AbstractCegarLoop]: === Iteration 544 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:36,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:36,032 INFO L85 PathProgramCache]: Analyzing trace with hash -791760010, now seen corresponding path program 242 times [2022-03-15 13:55:36,032 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:36,032 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457401053] [2022-03-15 13:55:36,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:36,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:36,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:36,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:36,147 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:36,147 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457401053] [2022-03-15 13:55:36,147 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457401053] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:36,147 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:36,147 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:36,147 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371931297] [2022-03-15 13:55:36,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:36,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:36,148 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:36,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:36,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:36,148 INFO L87 Difference]: Start difference. First operand 7309 states and 19336 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:36,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:36,528 INFO L93 Difference]: Finished difference Result 8219 states and 21682 transitions. [2022-03-15 13:55:36,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:55:36,529 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:36,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:36,537 INFO L225 Difference]: With dead ends: 8219 [2022-03-15 13:55:36,538 INFO L226 Difference]: Without dead ends: 7740 [2022-03-15 13:55:36,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=314, Invalid=1018, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:55:36,538 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 270 mSDsluCounter, 2225 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 2397 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:36,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 2397 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:36,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7740 states. [2022-03-15 13:55:36,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7740 to 7313. [2022-03-15 13:55:36,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6453774617067833) internal successors, (19343), 7312 states have internal predecessors, (19343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:36,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19343 transitions. [2022-03-15 13:55:36,627 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19343 transitions. Word has length 109 [2022-03-15 13:55:36,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:36,627 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19343 transitions. [2022-03-15 13:55:36,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:36,627 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19343 transitions. [2022-03-15 13:55:36,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:36,634 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:36,634 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:36,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable543 [2022-03-15 13:55:36,635 INFO L402 AbstractCegarLoop]: === Iteration 545 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:36,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:36,635 INFO L85 PathProgramCache]: Analyzing trace with hash 835763108, now seen corresponding path program 243 times [2022-03-15 13:55:36,635 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:36,635 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976217188] [2022-03-15 13:55:36,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:36,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:36,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:36,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:36,743 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:36,743 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976217188] [2022-03-15 13:55:36,744 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976217188] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:36,744 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:36,744 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:36,744 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376615548] [2022-03-15 13:55:36,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:36,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:36,744 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:36,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:36,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:36,744 INFO L87 Difference]: Start difference. First operand 7313 states and 19343 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:37,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:37,131 INFO L93 Difference]: Finished difference Result 8153 states and 21505 transitions. [2022-03-15 13:55:37,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 13:55:37,131 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:37,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:37,141 INFO L225 Difference]: With dead ends: 8153 [2022-03-15 13:55:37,141 INFO L226 Difference]: Without dead ends: 7665 [2022-03-15 13:55:37,141 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=331, Invalid=1001, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:55:37,141 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 253 mSDsluCounter, 2130 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 2300 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:37,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 2300 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:37,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7665 states. [2022-03-15 13:55:37,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7665 to 7301. [2022-03-15 13:55:37,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7301 states, 7300 states have (on average 2.646301369863014) internal successors, (19318), 7300 states have internal predecessors, (19318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:37,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7301 states to 7301 states and 19318 transitions. [2022-03-15 13:55:37,231 INFO L78 Accepts]: Start accepts. Automaton has 7301 states and 19318 transitions. Word has length 109 [2022-03-15 13:55:37,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:37,231 INFO L470 AbstractCegarLoop]: Abstraction has 7301 states and 19318 transitions. [2022-03-15 13:55:37,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:37,231 INFO L276 IsEmpty]: Start isEmpty. Operand 7301 states and 19318 transitions. [2022-03-15 13:55:37,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:37,238 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:37,238 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:37,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable544 [2022-03-15 13:55:37,238 INFO L402 AbstractCegarLoop]: === Iteration 546 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:37,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:37,239 INFO L85 PathProgramCache]: Analyzing trace with hash -446580992, now seen corresponding path program 244 times [2022-03-15 13:55:37,239 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:37,239 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321778498] [2022-03-15 13:55:37,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:37,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:37,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:37,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:37,347 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:37,347 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321778498] [2022-03-15 13:55:37,347 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321778498] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:37,347 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:37,347 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:37,347 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497443966] [2022-03-15 13:55:37,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:37,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:37,347 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:37,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:37,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:37,348 INFO L87 Difference]: Start difference. First operand 7301 states and 19318 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:37,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:37,988 INFO L93 Difference]: Finished difference Result 8516 states and 22459 transitions. [2022-03-15 13:55:37,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-15 13:55:37,988 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:37,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:37,999 INFO L225 Difference]: With dead ends: 8516 [2022-03-15 13:55:38,000 INFO L226 Difference]: Without dead ends: 7951 [2022-03-15 13:55:38,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 696 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=622, Invalid=2030, Unknown=0, NotChecked=0, Total=2652 [2022-03-15 13:55:38,000 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 422 mSDsluCounter, 2596 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 2758 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:38,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [422 Valid, 2758 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:38,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7951 states. [2022-03-15 13:55:38,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7951 to 7305. [2022-03-15 13:55:38,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7305 states, 7304 states have (on average 2.6458105147864184) internal successors, (19325), 7304 states have internal predecessors, (19325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:38,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7305 states to 7305 states and 19325 transitions. [2022-03-15 13:55:38,099 INFO L78 Accepts]: Start accepts. Automaton has 7305 states and 19325 transitions. Word has length 109 [2022-03-15 13:55:38,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:38,099 INFO L470 AbstractCegarLoop]: Abstraction has 7305 states and 19325 transitions. [2022-03-15 13:55:38,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:38,099 INFO L276 IsEmpty]: Start isEmpty. Operand 7305 states and 19325 transitions. [2022-03-15 13:55:38,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:38,107 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:38,107 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:38,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable545 [2022-03-15 13:55:38,107 INFO L402 AbstractCegarLoop]: === Iteration 547 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:38,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:38,107 INFO L85 PathProgramCache]: Analyzing trace with hash 417850070, now seen corresponding path program 245 times [2022-03-15 13:55:38,107 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:38,108 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855746930] [2022-03-15 13:55:38,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:38,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:38,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:38,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:38,228 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:38,228 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855746930] [2022-03-15 13:55:38,228 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855746930] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:38,228 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:38,228 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:38,228 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128202703] [2022-03-15 13:55:38,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:38,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:38,228 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:38,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:38,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:38,229 INFO L87 Difference]: Start difference. First operand 7305 states and 19325 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:38,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:38,821 INFO L93 Difference]: Finished difference Result 8391 states and 22130 transitions. [2022-03-15 13:55:38,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:55:38,821 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:38,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:38,832 INFO L225 Difference]: With dead ends: 8391 [2022-03-15 13:55:38,832 INFO L226 Difference]: Without dead ends: 7869 [2022-03-15 13:55:38,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=451, Invalid=1529, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 13:55:38,832 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 349 mSDsluCounter, 2516 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 2680 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:38,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [349 Valid, 2680 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:38,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7869 states. [2022-03-15 13:55:38,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7869 to 7309. [2022-03-15 13:55:38,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.645320197044335) internal successors, (19332), 7308 states have internal predecessors, (19332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:38,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19332 transitions. [2022-03-15 13:55:38,944 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19332 transitions. Word has length 109 [2022-03-15 13:55:38,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:38,944 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19332 transitions. [2022-03-15 13:55:38,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:38,944 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19332 transitions. [2022-03-15 13:55:38,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:38,953 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:38,953 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:38,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable546 [2022-03-15 13:55:38,953 INFO L402 AbstractCegarLoop]: === Iteration 548 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:38,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:38,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1140065280, now seen corresponding path program 246 times [2022-03-15 13:55:38,953 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:38,953 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544979219] [2022-03-15 13:55:38,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:38,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:38,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:39,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:39,081 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:39,081 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544979219] [2022-03-15 13:55:39,081 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544979219] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:39,081 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:39,081 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:39,081 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007752573] [2022-03-15 13:55:39,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:39,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:39,082 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:39,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:39,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:39,082 INFO L87 Difference]: Start difference. First operand 7309 states and 19332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:39,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:39,499 INFO L93 Difference]: Finished difference Result 8227 states and 21700 transitions. [2022-03-15 13:55:39,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:55:39,499 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:39,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:39,508 INFO L225 Difference]: With dead ends: 8227 [2022-03-15 13:55:39,508 INFO L226 Difference]: Without dead ends: 7748 [2022-03-15 13:55:39,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=309, Invalid=1023, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:55:39,509 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 322 mSDsluCounter, 1874 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 2051 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:39,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [322 Valid, 2051 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:39,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7748 states. [2022-03-15 13:55:39,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7748 to 7313. [2022-03-15 13:55:39,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6448304157549236) internal successors, (19339), 7312 states have internal predecessors, (19339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:39,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19339 transitions. [2022-03-15 13:55:39,599 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19339 transitions. Word has length 109 [2022-03-15 13:55:39,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:39,600 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19339 transitions. [2022-03-15 13:55:39,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:39,600 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19339 transitions. [2022-03-15 13:55:39,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:39,608 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:39,608 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:39,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable547 [2022-03-15 13:55:39,608 INFO L402 AbstractCegarLoop]: === Iteration 549 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:39,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:39,609 INFO L85 PathProgramCache]: Analyzing trace with hash 487457838, now seen corresponding path program 247 times [2022-03-15 13:55:39,609 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:39,609 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472060663] [2022-03-15 13:55:39,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:39,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:39,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:39,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:39,732 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:39,732 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472060663] [2022-03-15 13:55:39,732 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472060663] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:39,732 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:39,732 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:39,732 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338001498] [2022-03-15 13:55:39,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:39,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:39,732 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:39,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:39,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:39,733 INFO L87 Difference]: Start difference. First operand 7313 states and 19339 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:40,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:40,139 INFO L93 Difference]: Finished difference Result 8153 states and 21501 transitions. [2022-03-15 13:55:40,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:55:40,139 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:40,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:40,148 INFO L225 Difference]: With dead ends: 8153 [2022-03-15 13:55:40,148 INFO L226 Difference]: Without dead ends: 7661 [2022-03-15 13:55:40,149 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=318, Invalid=1014, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:55:40,149 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 299 mSDsluCounter, 2157 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 2322 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:40,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [299 Valid, 2322 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:40,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7661 states. [2022-03-15 13:55:40,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7661 to 7297. [2022-03-15 13:55:40,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7297 states, 7296 states have (on average 2.6462445175438596) internal successors, (19307), 7296 states have internal predecessors, (19307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:40,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7297 states to 7297 states and 19307 transitions. [2022-03-15 13:55:40,297 INFO L78 Accepts]: Start accepts. Automaton has 7297 states and 19307 transitions. Word has length 109 [2022-03-15 13:55:40,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:40,297 INFO L470 AbstractCegarLoop]: Abstraction has 7297 states and 19307 transitions. [2022-03-15 13:55:40,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:40,297 INFO L276 IsEmpty]: Start isEmpty. Operand 7297 states and 19307 transitions. [2022-03-15 13:55:40,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:40,304 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:40,304 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:40,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable548 [2022-03-15 13:55:40,304 INFO L402 AbstractCegarLoop]: === Iteration 550 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:40,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:40,305 INFO L85 PathProgramCache]: Analyzing trace with hash -94104470, now seen corresponding path program 248 times [2022-03-15 13:55:40,305 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:40,305 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027645735] [2022-03-15 13:55:40,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:40,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:40,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:40,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:40,416 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:40,416 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027645735] [2022-03-15 13:55:40,416 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027645735] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:40,416 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:40,417 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:40,417 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906229658] [2022-03-15 13:55:40,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:40,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:40,417 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:40,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:40,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:40,417 INFO L87 Difference]: Start difference. First operand 7297 states and 19307 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:41,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:41,100 INFO L93 Difference]: Finished difference Result 8378 states and 22067 transitions. [2022-03-15 13:55:41,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-15 13:55:41,100 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:41,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:41,111 INFO L225 Difference]: With dead ends: 8378 [2022-03-15 13:55:41,112 INFO L226 Difference]: Without dead ends: 7770 [2022-03-15 13:55:41,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 949 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=805, Invalid=2617, Unknown=0, NotChecked=0, Total=3422 [2022-03-15 13:55:41,112 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 556 mSDsluCounter, 2387 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 2558 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:41,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [556 Valid, 2558 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:41,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7770 states. [2022-03-15 13:55:41,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7770 to 7254. [2022-03-15 13:55:41,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7254 states, 7253 states have (on average 2.6459396111953675) internal successors, (19191), 7253 states have internal predecessors, (19191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:41,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7254 states to 7254 states and 19191 transitions. [2022-03-15 13:55:41,205 INFO L78 Accepts]: Start accepts. Automaton has 7254 states and 19191 transitions. Word has length 109 [2022-03-15 13:55:41,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:41,205 INFO L470 AbstractCegarLoop]: Abstraction has 7254 states and 19191 transitions. [2022-03-15 13:55:41,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:41,205 INFO L276 IsEmpty]: Start isEmpty. Operand 7254 states and 19191 transitions. [2022-03-15 13:55:41,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:41,212 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:41,212 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:41,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable549 [2022-03-15 13:55:41,212 INFO L402 AbstractCegarLoop]: === Iteration 551 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:41,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:41,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1930391086, now seen corresponding path program 249 times [2022-03-15 13:55:41,213 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:41,213 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242169230] [2022-03-15 13:55:41,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:41,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:41,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:41,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:41,328 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:41,328 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242169230] [2022-03-15 13:55:41,328 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242169230] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:41,328 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:41,328 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:41,328 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710334547] [2022-03-15 13:55:41,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:41,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:41,329 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:41,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:41,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:41,329 INFO L87 Difference]: Start difference. First operand 7254 states and 19191 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:42,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:42,023 INFO L93 Difference]: Finished difference Result 8273 states and 21793 transitions. [2022-03-15 13:55:42,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-15 13:55:42,023 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:42,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:42,035 INFO L225 Difference]: With dead ends: 8273 [2022-03-15 13:55:42,035 INFO L226 Difference]: Without dead ends: 7708 [2022-03-15 13:55:42,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 737 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=628, Invalid=2128, Unknown=0, NotChecked=0, Total=2756 [2022-03-15 13:55:42,035 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 502 mSDsluCounter, 2303 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 2470 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:42,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [502 Valid, 2470 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:42,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7708 states. [2022-03-15 13:55:42,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7708 to 7258. [2022-03-15 13:55:42,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7258 states, 7257 states have (on average 2.645445776491663) internal successors, (19198), 7257 states have internal predecessors, (19198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:42,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7258 states to 7258 states and 19198 transitions. [2022-03-15 13:55:42,132 INFO L78 Accepts]: Start accepts. Automaton has 7258 states and 19198 transitions. Word has length 109 [2022-03-15 13:55:42,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:42,133 INFO L470 AbstractCegarLoop]: Abstraction has 7258 states and 19198 transitions. [2022-03-15 13:55:42,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:42,133 INFO L276 IsEmpty]: Start isEmpty. Operand 7258 states and 19198 transitions. [2022-03-15 13:55:42,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:42,142 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:42,142 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:42,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable550 [2022-03-15 13:55:42,142 INFO L402 AbstractCegarLoop]: === Iteration 552 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:42,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:42,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1500145148, now seen corresponding path program 250 times [2022-03-15 13:55:42,142 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:42,142 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486752600] [2022-03-15 13:55:42,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:42,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:42,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:42,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:42,265 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:42,265 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486752600] [2022-03-15 13:55:42,265 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486752600] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:42,265 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:42,265 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:42,265 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525918346] [2022-03-15 13:55:42,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:42,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:42,265 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:42,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:42,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:42,266 INFO L87 Difference]: Start difference. First operand 7258 states and 19198 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:42,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:42,815 INFO L93 Difference]: Finished difference Result 8168 states and 21519 transitions. [2022-03-15 13:55:42,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:55:42,816 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:42,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:42,826 INFO L225 Difference]: With dead ends: 8168 [2022-03-15 13:55:42,826 INFO L226 Difference]: Without dead ends: 7646 [2022-03-15 13:55:42,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=441, Invalid=1539, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 13:55:42,826 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 365 mSDsluCounter, 2369 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 2529 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:42,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 2529 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:42,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7646 states. [2022-03-15 13:55:42,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7646 to 7262. [2022-03-15 13:55:42,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7262 states, 7261 states have (on average 2.644952485883487) internal successors, (19205), 7261 states have internal predecessors, (19205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:42,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7262 states to 7262 states and 19205 transitions. [2022-03-15 13:55:42,916 INFO L78 Accepts]: Start accepts. Automaton has 7262 states and 19205 transitions. Word has length 109 [2022-03-15 13:55:42,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:42,916 INFO L470 AbstractCegarLoop]: Abstraction has 7262 states and 19205 transitions. [2022-03-15 13:55:42,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:42,916 INFO L276 IsEmpty]: Start isEmpty. Operand 7262 states and 19205 transitions. [2022-03-15 13:55:42,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:42,923 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:42,923 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:42,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable551 [2022-03-15 13:55:42,924 INFO L402 AbstractCegarLoop]: === Iteration 553 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:42,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:42,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1236906798, now seen corresponding path program 251 times [2022-03-15 13:55:42,924 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:42,924 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051157979] [2022-03-15 13:55:42,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:42,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:42,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:43,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:43,053 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:43,053 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051157979] [2022-03-15 13:55:43,053 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051157979] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:43,054 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:43,054 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:43,054 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548957655] [2022-03-15 13:55:43,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:43,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:43,054 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:43,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:43,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:43,055 INFO L87 Difference]: Start difference. First operand 7262 states and 19205 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:43,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:43,494 INFO L93 Difference]: Finished difference Result 8044 states and 21199 transitions. [2022-03-15 13:55:43,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:55:43,494 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:43,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:43,504 INFO L225 Difference]: With dead ends: 8044 [2022-03-15 13:55:43,504 INFO L226 Difference]: Without dead ends: 7565 [2022-03-15 13:55:43,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=304, Invalid=1028, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 13:55:43,504 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 298 mSDsluCounter, 2261 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 2420 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:43,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 2420 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:43,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7565 states. [2022-03-15 13:55:43,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7565 to 7266. [2022-03-15 13:55:43,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7266 states, 7265 states have (on average 2.6444597384721265) internal successors, (19212), 7265 states have internal predecessors, (19212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:43,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7266 states to 7266 states and 19212 transitions. [2022-03-15 13:55:43,601 INFO L78 Accepts]: Start accepts. Automaton has 7266 states and 19212 transitions. Word has length 109 [2022-03-15 13:55:43,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:43,601 INFO L470 AbstractCegarLoop]: Abstraction has 7266 states and 19212 transitions. [2022-03-15 13:55:43,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:43,601 INFO L276 IsEmpty]: Start isEmpty. Operand 7266 states and 19212 transitions. [2022-03-15 13:55:43,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 13:55:43,609 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:43,609 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:43,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable552 [2022-03-15 13:55:43,609 INFO L402 AbstractCegarLoop]: === Iteration 554 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:43,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:43,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1430537380, now seen corresponding path program 252 times [2022-03-15 13:55:43,609 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:43,609 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266026106] [2022-03-15 13:55:43,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:43,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:43,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:43,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:43,723 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:43,723 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266026106] [2022-03-15 13:55:43,723 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266026106] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:43,723 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:43,723 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:55:43,723 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932420541] [2022-03-15 13:55:43,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:43,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:55:43,723 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:43,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:55:43,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:55:43,724 INFO L87 Difference]: Start difference. First operand 7266 states and 19212 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:44,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:44,094 INFO L93 Difference]: Finished difference Result 7742 states and 20401 transitions. [2022-03-15 13:55:44,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-15 13:55:44,094 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-15 13:55:44,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:44,105 INFO L225 Difference]: With dead ends: 7742 [2022-03-15 13:55:44,105 INFO L226 Difference]: Without dead ends: 7154 [2022-03-15 13:55:44,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=304, Invalid=956, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:55:44,105 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 224 mSDsluCounter, 2160 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 2317 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:44,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 2317 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:55:44,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7154 states. [2022-03-15 13:55:44,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7154 to 7154. [2022-03-15 13:55:44,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7154 states, 7153 states have (on average 2.6496574863693554) internal successors, (18953), 7153 states have internal predecessors, (18953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:44,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7154 states to 7154 states and 18953 transitions. [2022-03-15 13:55:44,200 INFO L78 Accepts]: Start accepts. Automaton has 7154 states and 18953 transitions. Word has length 109 [2022-03-15 13:55:44,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:44,200 INFO L470 AbstractCegarLoop]: Abstraction has 7154 states and 18953 transitions. [2022-03-15 13:55:44,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:44,200 INFO L276 IsEmpty]: Start isEmpty. Operand 7154 states and 18953 transitions. [2022-03-15 13:55:44,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:55:44,208 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:44,208 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:44,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable553 [2022-03-15 13:55:44,208 INFO L402 AbstractCegarLoop]: === Iteration 555 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:44,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:44,208 INFO L85 PathProgramCache]: Analyzing trace with hash 280838126, now seen corresponding path program 1 times [2022-03-15 13:55:44,208 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:44,208 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93885543] [2022-03-15 13:55:44,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:44,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:44,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:44,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:44,828 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:44,828 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93885543] [2022-03-15 13:55:44,828 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93885543] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:44,828 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:44,828 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:55:44,828 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348949968] [2022-03-15 13:55:44,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:44,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:55:44,829 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:44,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:55:44,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:55:44,829 INFO L87 Difference]: Start difference. First operand 7154 states and 18953 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:52,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:52,819 INFO L93 Difference]: Finished difference Result 21119 states and 56064 transitions. [2022-03-15 13:55:52,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-03-15 13:55:52,820 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:55:52,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:52,845 INFO L225 Difference]: With dead ends: 21119 [2022-03-15 13:55:52,845 INFO L226 Difference]: Without dead ends: 19831 [2022-03-15 13:55:52,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3886 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=3896, Invalid=12106, Unknown=0, NotChecked=0, Total=16002 [2022-03-15 13:55:52,846 INFO L933 BasicCegarLoop]: 638 mSDtfsCounter, 2230 mSDsluCounter, 13309 mSDsCounter, 0 mSdLazyCounter, 2321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2230 SdHoareTripleChecker+Valid, 13662 SdHoareTripleChecker+Invalid, 2321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:52,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2230 Valid, 13662 Invalid, 2321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2321 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 13:55:52,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19831 states. [2022-03-15 13:55:52,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19831 to 8350. [2022-03-15 13:55:52,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8350 states, 8349 states have (on average 2.6578033297400885) internal successors, (22190), 8349 states have internal predecessors, (22190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:52,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8350 states to 8350 states and 22190 transitions. [2022-03-15 13:55:52,999 INFO L78 Accepts]: Start accepts. Automaton has 8350 states and 22190 transitions. Word has length 153 [2022-03-15 13:55:52,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:52,999 INFO L470 AbstractCegarLoop]: Abstraction has 8350 states and 22190 transitions. [2022-03-15 13:55:52,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:52,999 INFO L276 IsEmpty]: Start isEmpty. Operand 8350 states and 22190 transitions. [2022-03-15 13:55:53,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:55:53,008 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:53,008 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:53,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable554 [2022-03-15 13:55:53,008 INFO L402 AbstractCegarLoop]: === Iteration 556 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:53,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:53,009 INFO L85 PathProgramCache]: Analyzing trace with hash 129332142, now seen corresponding path program 2 times [2022-03-15 13:55:53,009 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:53,009 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729095568] [2022-03-15 13:55:53,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:53,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:53,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:53,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:53,506 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:53,506 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729095568] [2022-03-15 13:55:53,506 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729095568] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:53,506 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:53,506 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:55:53,506 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167172431] [2022-03-15 13:55:53,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:53,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:55:53,506 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:53,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:55:53,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:55:53,507 INFO L87 Difference]: Start difference. First operand 8350 states and 22190 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:57,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:55:57,174 INFO L93 Difference]: Finished difference Result 20429 states and 54186 transitions. [2022-03-15 13:55:57,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-15 13:55:57,174 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:55:57,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:55:57,202 INFO L225 Difference]: With dead ends: 20429 [2022-03-15 13:55:57,202 INFO L226 Difference]: Without dead ends: 19938 [2022-03-15 13:55:57,203 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 520 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1199, Invalid=3913, Unknown=0, NotChecked=0, Total=5112 [2022-03-15 13:55:57,203 INFO L933 BasicCegarLoop]: 581 mSDtfsCounter, 1418 mSDsluCounter, 12372 mSDsCounter, 0 mSdLazyCounter, 2381 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1418 SdHoareTripleChecker+Valid, 12681 SdHoareTripleChecker+Invalid, 2381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 13:55:57,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1418 Valid, 12681 Invalid, 2381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2381 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 13:55:57,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19938 states. [2022-03-15 13:55:57,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19938 to 8382. [2022-03-15 13:55:57,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8382 states, 8381 states have (on average 2.6576780813745375) internal successors, (22274), 8381 states have internal predecessors, (22274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:57,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8382 states to 8382 states and 22274 transitions. [2022-03-15 13:55:57,374 INFO L78 Accepts]: Start accepts. Automaton has 8382 states and 22274 transitions. Word has length 153 [2022-03-15 13:55:57,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:55:57,374 INFO L470 AbstractCegarLoop]: Abstraction has 8382 states and 22274 transitions. [2022-03-15 13:55:57,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:55:57,374 INFO L276 IsEmpty]: Start isEmpty. Operand 8382 states and 22274 transitions. [2022-03-15 13:55:57,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:55:57,382 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:55:57,382 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:55:57,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable555 [2022-03-15 13:55:57,383 INFO L402 AbstractCegarLoop]: === Iteration 557 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:55:57,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:55:57,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1756855260, now seen corresponding path program 3 times [2022-03-15 13:55:57,383 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:55:57,383 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357645735] [2022-03-15 13:55:57,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:55:57,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:55:57,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:55:57,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:55:57,880 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:55:57,880 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357645735] [2022-03-15 13:55:57,880 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357645735] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:55:57,880 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:55:57,880 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:55:57,880 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028830467] [2022-03-15 13:55:57,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:55:57,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:55:57,880 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:55:57,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:55:57,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=799, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:55:57,881 INFO L87 Difference]: Start difference. First operand 8382 states and 22274 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:01,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:56:01,579 INFO L93 Difference]: Finished difference Result 20426 states and 54176 transitions. [2022-03-15 13:56:01,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-15 13:56:01,579 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:56:01,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:56:01,607 INFO L225 Difference]: With dead ends: 20426 [2022-03-15 13:56:01,607 INFO L226 Difference]: Without dead ends: 19934 [2022-03-15 13:56:01,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 825 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1274, Invalid=4578, Unknown=0, NotChecked=0, Total=5852 [2022-03-15 13:56:01,608 INFO L933 BasicCegarLoop]: 590 mSDtfsCounter, 1436 mSDsluCounter, 11952 mSDsCounter, 0 mSdLazyCounter, 2296 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1436 SdHoareTripleChecker+Valid, 12283 SdHoareTripleChecker+Invalid, 2296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 13:56:01,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1436 Valid, 12283 Invalid, 2296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2296 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 13:56:01,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19934 states. [2022-03-15 13:56:01,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19934 to 8378. [2022-03-15 13:56:01,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8378 states, 8377 states have (on average 2.6576339978512595) internal successors, (22263), 8377 states have internal predecessors, (22263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:01,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8378 states to 8378 states and 22263 transitions. [2022-03-15 13:56:01,776 INFO L78 Accepts]: Start accepts. Automaton has 8378 states and 22263 transitions. Word has length 153 [2022-03-15 13:56:01,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:56:01,777 INFO L470 AbstractCegarLoop]: Abstraction has 8378 states and 22263 transitions. [2022-03-15 13:56:01,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:01,777 INFO L276 IsEmpty]: Start isEmpty. Operand 8378 states and 22263 transitions. [2022-03-15 13:56:01,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:56:01,785 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:56:01,785 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:56:01,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable556 [2022-03-15 13:56:01,786 INFO L402 AbstractCegarLoop]: === Iteration 558 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:56:01,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:56:01,786 INFO L85 PathProgramCache]: Analyzing trace with hash 635797920, now seen corresponding path program 4 times [2022-03-15 13:56:01,786 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:56:01,786 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720520811] [2022-03-15 13:56:01,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:56:01,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:56:01,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:56:02,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:56:02,301 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:56:02,301 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720520811] [2022-03-15 13:56:02,301 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720520811] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:56:02,301 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:56:02,301 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:56:02,301 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130211316] [2022-03-15 13:56:02,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:56:02,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:56:02,301 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:56:02,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:56:02,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:56:02,302 INFO L87 Difference]: Start difference. First operand 8378 states and 22263 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:06,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:56:06,652 INFO L93 Difference]: Finished difference Result 20462 states and 54271 transitions. [2022-03-15 13:56:06,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-15 13:56:06,653 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:56:06,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:56:06,675 INFO L225 Difference]: With dead ends: 20462 [2022-03-15 13:56:06,676 INFO L226 Difference]: Without dead ends: 19930 [2022-03-15 13:56:06,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1209 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1611, Invalid=5871, Unknown=0, NotChecked=0, Total=7482 [2022-03-15 13:56:06,676 INFO L933 BasicCegarLoop]: 599 mSDtfsCounter, 1516 mSDsluCounter, 12712 mSDsCounter, 0 mSdLazyCounter, 2387 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 13035 SdHoareTripleChecker+Invalid, 2387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 13:56:06,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1516 Valid, 13035 Invalid, 2387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2387 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 13:56:06,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19930 states. [2022-03-15 13:56:06,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19930 to 8374. [2022-03-15 13:56:06,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8374 states, 8373 states have (on average 2.6575898722082885) internal successors, (22252), 8373 states have internal predecessors, (22252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:06,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8374 states to 8374 states and 22252 transitions. [2022-03-15 13:56:06,828 INFO L78 Accepts]: Start accepts. Automaton has 8374 states and 22252 transitions. Word has length 153 [2022-03-15 13:56:06,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:56:06,829 INFO L470 AbstractCegarLoop]: Abstraction has 8374 states and 22252 transitions. [2022-03-15 13:56:06,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:06,829 INFO L276 IsEmpty]: Start isEmpty. Operand 8374 states and 22252 transitions. [2022-03-15 13:56:06,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:56:06,838 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:56:06,838 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:56:06,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable557 [2022-03-15 13:56:06,838 INFO L402 AbstractCegarLoop]: === Iteration 559 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:56:06,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:56:06,839 INFO L85 PathProgramCache]: Analyzing trace with hash 110662384, now seen corresponding path program 5 times [2022-03-15 13:56:06,839 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:56:06,839 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854973430] [2022-03-15 13:56:06,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:56:06,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:56:06,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:56:07,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:56:07,321 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:56:07,321 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854973430] [2022-03-15 13:56:07,321 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854973430] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:56:07,321 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:56:07,321 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:56:07,321 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367442265] [2022-03-15 13:56:07,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:56:07,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:56:07,321 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:56:07,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:56:07,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:56:07,322 INFO L87 Difference]: Start difference. First operand 8374 states and 22252 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:12,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:56:12,242 INFO L93 Difference]: Finished difference Result 20498 states and 54366 transitions. [2022-03-15 13:56:12,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-03-15 13:56:12,242 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:56:12,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:56:12,270 INFO L225 Difference]: With dead ends: 20498 [2022-03-15 13:56:12,270 INFO L226 Difference]: Without dead ends: 19926 [2022-03-15 13:56:12,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1773 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=2023, Invalid=7289, Unknown=0, NotChecked=0, Total=9312 [2022-03-15 13:56:12,271 INFO L933 BasicCegarLoop]: 608 mSDtfsCounter, 1591 mSDsluCounter, 12875 mSDsCounter, 0 mSdLazyCounter, 2376 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1591 SdHoareTripleChecker+Valid, 13205 SdHoareTripleChecker+Invalid, 2376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 13:56:12,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1591 Valid, 13205 Invalid, 2376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2376 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 13:56:12,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19926 states. [2022-03-15 13:56:12,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19926 to 8370. [2022-03-15 13:56:12,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8370 states, 8369 states have (on average 2.6575457043852313) internal successors, (22241), 8369 states have internal predecessors, (22241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:12,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8370 states to 8370 states and 22241 transitions. [2022-03-15 13:56:12,450 INFO L78 Accepts]: Start accepts. Automaton has 8370 states and 22241 transitions. Word has length 153 [2022-03-15 13:56:12,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:56:12,450 INFO L470 AbstractCegarLoop]: Abstraction has 8370 states and 22241 transitions. [2022-03-15 13:56:12,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:12,450 INFO L276 IsEmpty]: Start isEmpty. Operand 8370 states and 22241 transitions. [2022-03-15 13:56:12,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:56:12,459 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:56:12,459 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:56:12,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable558 [2022-03-15 13:56:12,460 INFO L402 AbstractCegarLoop]: === Iteration 560 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:56:12,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:56:12,460 INFO L85 PathProgramCache]: Analyzing trace with hash 762955650, now seen corresponding path program 6 times [2022-03-15 13:56:12,460 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:56:12,460 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807291696] [2022-03-15 13:56:12,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:56:12,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:56:12,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:56:13,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:56:13,017 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:56:13,017 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807291696] [2022-03-15 13:56:13,017 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807291696] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:56:13,017 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:56:13,017 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:56:13,017 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974517178] [2022-03-15 13:56:13,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:56:13,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:56:13,017 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:56:13,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:56:13,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=799, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:56:13,018 INFO L87 Difference]: Start difference. First operand 8370 states and 22241 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:18,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:56:18,999 INFO L93 Difference]: Finished difference Result 20534 states and 54461 transitions. [2022-03-15 13:56:18,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-15 13:56:18,999 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:56:18,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:56:19,022 INFO L225 Difference]: With dead ends: 20534 [2022-03-15 13:56:19,022 INFO L226 Difference]: Without dead ends: 19922 [2022-03-15 13:56:19,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2575 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=2510, Invalid=8832, Unknown=0, NotChecked=0, Total=11342 [2022-03-15 13:56:19,023 INFO L933 BasicCegarLoop]: 617 mSDtfsCounter, 1685 mSDsluCounter, 11793 mSDsCounter, 0 mSdLazyCounter, 2169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1685 SdHoareTripleChecker+Valid, 12160 SdHoareTripleChecker+Invalid, 2169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:56:19,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1685 Valid, 12160 Invalid, 2169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2169 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 13:56:19,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19922 states. [2022-03-15 13:56:19,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19922 to 8366. [2022-03-15 13:56:19,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8366 states, 8365 states have (on average 2.657501494321578) internal successors, (22230), 8365 states have internal predecessors, (22230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:19,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8366 states to 8366 states and 22230 transitions. [2022-03-15 13:56:19,165 INFO L78 Accepts]: Start accepts. Automaton has 8366 states and 22230 transitions. Word has length 153 [2022-03-15 13:56:19,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:56:19,165 INFO L470 AbstractCegarLoop]: Abstraction has 8366 states and 22230 transitions. [2022-03-15 13:56:19,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:19,165 INFO L276 IsEmpty]: Start isEmpty. Operand 8366 states and 22230 transitions. [2022-03-15 13:56:19,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:56:19,173 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:56:19,173 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:56:19,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable559 [2022-03-15 13:56:19,173 INFO L402 AbstractCegarLoop]: === Iteration 561 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:56:19,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:56:19,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1972639894, now seen corresponding path program 7 times [2022-03-15 13:56:19,174 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:56:19,174 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716278411] [2022-03-15 13:56:19,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:56:19,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:56:19,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:56:19,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:56:19,672 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:56:19,672 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716278411] [2022-03-15 13:56:19,672 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716278411] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:56:19,672 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:56:19,672 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:56:19,672 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126339824] [2022-03-15 13:56:19,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:56:19,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:56:19,672 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:56:19,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:56:19,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=799, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:56:19,672 INFO L87 Difference]: Start difference. First operand 8366 states and 22230 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:26,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:56:26,329 INFO L93 Difference]: Finished difference Result 20650 states and 54768 transitions. [2022-03-15 13:56:26,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-03-15 13:56:26,329 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:56:26,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:56:26,356 INFO L225 Difference]: With dead ends: 20650 [2022-03-15 13:56:26,356 INFO L226 Difference]: Without dead ends: 19910 [2022-03-15 13:56:26,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3322 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=3062, Invalid=10510, Unknown=0, NotChecked=0, Total=13572 [2022-03-15 13:56:26,357 INFO L933 BasicCegarLoop]: 627 mSDtfsCounter, 1782 mSDsluCounter, 13168 mSDsCounter, 0 mSdLazyCounter, 2374 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1782 SdHoareTripleChecker+Valid, 13513 SdHoareTripleChecker+Invalid, 2374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 13:56:26,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1782 Valid, 13513 Invalid, 2374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2374 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 13:56:26,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19910 states. [2022-03-15 13:56:26,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19910 to 8354. [2022-03-15 13:56:26,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8354 states, 8353 states have (on average 2.6573686100802107) internal successors, (22197), 8353 states have internal predecessors, (22197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:26,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8354 states to 8354 states and 22197 transitions. [2022-03-15 13:56:26,524 INFO L78 Accepts]: Start accepts. Automaton has 8354 states and 22197 transitions. Word has length 153 [2022-03-15 13:56:26,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:56:26,525 INFO L470 AbstractCegarLoop]: Abstraction has 8354 states and 22197 transitions. [2022-03-15 13:56:26,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:26,525 INFO L276 IsEmpty]: Start isEmpty. Operand 8354 states and 22197 transitions. [2022-03-15 13:56:26,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:56:26,534 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:56:26,534 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:56:26,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable560 [2022-03-15 13:56:26,534 INFO L402 AbstractCegarLoop]: === Iteration 562 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:56:26,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:56:26,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1230030440, now seen corresponding path program 8 times [2022-03-15 13:56:26,535 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:56:26,535 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16208429] [2022-03-15 13:56:26,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:56:26,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:56:26,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:56:27,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:56:27,057 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:56:27,057 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16208429] [2022-03-15 13:56:27,057 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16208429] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:56:27,057 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:56:27,057 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:56:27,057 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716975242] [2022-03-15 13:56:27,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:56:27,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:56:27,057 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:56:27,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:56:27,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:56:27,058 INFO L87 Difference]: Start difference. First operand 8354 states and 22197 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:34,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:56:34,180 INFO L93 Difference]: Finished difference Result 20603 states and 54641 transitions. [2022-03-15 13:56:34,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-03-15 13:56:34,180 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:56:34,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:56:34,203 INFO L225 Difference]: With dead ends: 20603 [2022-03-15 13:56:34,203 INFO L226 Difference]: Without dead ends: 19779 [2022-03-15 13:56:34,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3525 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=3465, Invalid=11297, Unknown=0, NotChecked=0, Total=14762 [2022-03-15 13:56:34,204 INFO L933 BasicCegarLoop]: 629 mSDtfsCounter, 1919 mSDsluCounter, 13130 mSDsCounter, 0 mSdLazyCounter, 2289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1919 SdHoareTripleChecker+Valid, 13477 SdHoareTripleChecker+Invalid, 2289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 13:56:34,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1919 Valid, 13477 Invalid, 2289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2289 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 13:56:34,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19779 states. [2022-03-15 13:56:34,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19779 to 8298. [2022-03-15 13:56:34,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8298 states, 8297 states have (on average 2.6572255031939256) internal successors, (22047), 8297 states have internal predecessors, (22047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:34,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8298 states to 8298 states and 22047 transitions. [2022-03-15 13:56:34,357 INFO L78 Accepts]: Start accepts. Automaton has 8298 states and 22047 transitions. Word has length 153 [2022-03-15 13:56:34,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:56:34,357 INFO L470 AbstractCegarLoop]: Abstraction has 8298 states and 22047 transitions. [2022-03-15 13:56:34,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:34,357 INFO L276 IsEmpty]: Start isEmpty. Operand 8298 states and 22047 transitions. [2022-03-15 13:56:34,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:56:34,367 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:56:34,367 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:56:34,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable561 [2022-03-15 13:56:34,367 INFO L402 AbstractCegarLoop]: === Iteration 563 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:56:34,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:56:34,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1436230792, now seen corresponding path program 9 times [2022-03-15 13:56:34,367 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:56:34,367 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510141947] [2022-03-15 13:56:34,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:56:34,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:56:34,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:56:34,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:56:34,870 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:56:34,870 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510141947] [2022-03-15 13:56:34,870 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510141947] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:56:34,870 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:56:34,870 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:56:34,870 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041502085] [2022-03-15 13:56:34,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:56:34,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:56:34,870 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:56:34,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:56:34,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=794, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:56:34,870 INFO L87 Difference]: Start difference. First operand 8298 states and 22047 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:38,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:56:38,600 INFO L93 Difference]: Finished difference Result 20832 states and 55263 transitions. [2022-03-15 13:56:38,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-15 13:56:38,600 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:56:38,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:56:38,633 INFO L225 Difference]: With dead ends: 20832 [2022-03-15 13:56:38,633 INFO L226 Difference]: Without dead ends: 20341 [2022-03-15 13:56:38,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1245, Invalid=4011, Unknown=0, NotChecked=0, Total=5256 [2022-03-15 13:56:38,634 INFO L933 BasicCegarLoop]: 572 mSDtfsCounter, 1424 mSDsluCounter, 10519 mSDsCounter, 0 mSdLazyCounter, 2098 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1424 SdHoareTripleChecker+Valid, 10861 SdHoareTripleChecker+Invalid, 2098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 13:56:38,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1424 Valid, 10861 Invalid, 2098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2098 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 13:56:38,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20341 states. [2022-03-15 13:56:38,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20341 to 8342. [2022-03-15 13:56:38,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8342 states, 8341 states have (on average 2.6572353434839946) internal successors, (22164), 8341 states have internal predecessors, (22164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:38,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8342 states to 8342 states and 22164 transitions. [2022-03-15 13:56:38,827 INFO L78 Accepts]: Start accepts. Automaton has 8342 states and 22164 transitions. Word has length 153 [2022-03-15 13:56:38,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:56:38,828 INFO L470 AbstractCegarLoop]: Abstraction has 8342 states and 22164 transitions. [2022-03-15 13:56:38,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:38,828 INFO L276 IsEmpty]: Start isEmpty. Operand 8342 states and 22164 transitions. [2022-03-15 13:56:38,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:56:38,838 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:56:38,838 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:56:38,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable562 [2022-03-15 13:56:38,838 INFO L402 AbstractCegarLoop]: === Iteration 564 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:56:38,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:56:38,838 INFO L85 PathProgramCache]: Analyzing trace with hash 191292326, now seen corresponding path program 10 times [2022-03-15 13:56:38,838 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:56:38,838 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833782904] [2022-03-15 13:56:38,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:56:38,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:56:38,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:56:39,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:56:39,331 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:56:39,331 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833782904] [2022-03-15 13:56:39,331 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833782904] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:56:39,331 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:56:39,332 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:56:39,332 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979972223] [2022-03-15 13:56:39,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:56:39,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:56:39,332 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:56:39,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:56:39,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:56:39,332 INFO L87 Difference]: Start difference. First operand 8342 states and 22164 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:43,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:56:43,244 INFO L93 Difference]: Finished difference Result 20810 states and 55207 transitions. [2022-03-15 13:56:43,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-15 13:56:43,244 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:56:43,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:56:43,269 INFO L225 Difference]: With dead ends: 20810 [2022-03-15 13:56:43,270 INFO L226 Difference]: Without dead ends: 20318 [2022-03-15 13:56:43,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 739 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1280, Invalid=4572, Unknown=0, NotChecked=0, Total=5852 [2022-03-15 13:56:43,270 INFO L933 BasicCegarLoop]: 577 mSDtfsCounter, 1443 mSDsluCounter, 11703 mSDsCounter, 0 mSdLazyCounter, 2302 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1443 SdHoareTripleChecker+Valid, 12034 SdHoareTripleChecker+Invalid, 2302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 13:56:43,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1443 Valid, 12034 Invalid, 2302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2302 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 13:56:43,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20318 states. [2022-03-15 13:56:43,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20318 to 8338. [2022-03-15 13:56:43,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8338 states, 8337 states have (on average 2.6571908360321457) internal successors, (22153), 8337 states have internal predecessors, (22153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:43,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8338 states to 8338 states and 22153 transitions. [2022-03-15 13:56:43,422 INFO L78 Accepts]: Start accepts. Automaton has 8338 states and 22153 transitions. Word has length 153 [2022-03-15 13:56:43,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:56:43,423 INFO L470 AbstractCegarLoop]: Abstraction has 8338 states and 22153 transitions. [2022-03-15 13:56:43,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:43,423 INFO L276 IsEmpty]: Start isEmpty. Operand 8338 states and 22153 transitions. [2022-03-15 13:56:43,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:56:43,432 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:56:43,432 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:56:43,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable563 [2022-03-15 13:56:43,432 INFO L402 AbstractCegarLoop]: === Iteration 565 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:56:43,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:56:43,432 INFO L85 PathProgramCache]: Analyzing trace with hash -929765014, now seen corresponding path program 11 times [2022-03-15 13:56:43,432 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:56:43,432 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254747792] [2022-03-15 13:56:43,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:56:43,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:56:43,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:56:43,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:56:43,905 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:56:43,905 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254747792] [2022-03-15 13:56:43,905 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254747792] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:56:43,905 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:56:43,905 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:56:43,905 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067728350] [2022-03-15 13:56:43,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:56:43,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:56:43,906 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:56:43,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:56:43,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:56:43,906 INFO L87 Difference]: Start difference. First operand 8338 states and 22153 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:48,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:56:48,071 INFO L93 Difference]: Finished difference Result 20846 states and 55302 transitions. [2022-03-15 13:56:48,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-15 13:56:48,071 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:56:48,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:56:48,102 INFO L225 Difference]: With dead ends: 20846 [2022-03-15 13:56:48,102 INFO L226 Difference]: Without dead ends: 20314 [2022-03-15 13:56:48,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1266 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1633, Invalid=5849, Unknown=0, NotChecked=0, Total=7482 [2022-03-15 13:56:48,104 INFO L933 BasicCegarLoop]: 586 mSDtfsCounter, 1517 mSDsluCounter, 11287 mSDsCounter, 0 mSdLazyCounter, 2193 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 11639 SdHoareTripleChecker+Invalid, 2193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 13:56:48,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1517 Valid, 11639 Invalid, 2193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2193 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 13:56:48,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20314 states. [2022-03-15 13:56:48,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20314 to 8334. [2022-03-15 13:56:48,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8334 states, 8333 states have (on average 2.657146285851434) internal successors, (22142), 8333 states have internal predecessors, (22142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:48,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8334 states to 8334 states and 22142 transitions. [2022-03-15 13:56:48,282 INFO L78 Accepts]: Start accepts. Automaton has 8334 states and 22142 transitions. Word has length 153 [2022-03-15 13:56:48,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:56:48,282 INFO L470 AbstractCegarLoop]: Abstraction has 8334 states and 22142 transitions. [2022-03-15 13:56:48,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:48,282 INFO L276 IsEmpty]: Start isEmpty. Operand 8334 states and 22142 transitions. [2022-03-15 13:56:48,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:56:48,291 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:56:48,291 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:56:48,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable564 [2022-03-15 13:56:48,291 INFO L402 AbstractCegarLoop]: === Iteration 566 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:56:48,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:56:48,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1454900550, now seen corresponding path program 12 times [2022-03-15 13:56:48,292 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:56:48,292 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815917632] [2022-03-15 13:56:48,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:56:48,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:56:48,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:56:48,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:56:48,746 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:56:48,746 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815917632] [2022-03-15 13:56:48,746 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815917632] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:56:48,746 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:56:48,746 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:56:48,746 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884654271] [2022-03-15 13:56:48,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:56:48,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:56:48,746 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:56:48,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:56:48,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:56:48,747 INFO L87 Difference]: Start difference. First operand 8334 states and 22142 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:53,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:56:53,894 INFO L93 Difference]: Finished difference Result 20882 states and 55397 transitions. [2022-03-15 13:56:53,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-03-15 13:56:53,895 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:56:53,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:56:53,924 INFO L225 Difference]: With dead ends: 20882 [2022-03-15 13:56:53,924 INFO L226 Difference]: Without dead ends: 20310 [2022-03-15 13:56:53,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1761 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=2052, Invalid=7260, Unknown=0, NotChecked=0, Total=9312 [2022-03-15 13:56:53,925 INFO L933 BasicCegarLoop]: 595 mSDtfsCounter, 1591 mSDsluCounter, 12583 mSDsCounter, 0 mSdLazyCounter, 2374 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1591 SdHoareTripleChecker+Valid, 12916 SdHoareTripleChecker+Invalid, 2374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 13:56:53,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1591 Valid, 12916 Invalid, 2374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2374 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 13:56:53,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20310 states. [2022-03-15 13:56:54,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20310 to 8330. [2022-03-15 13:56:54,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8330 states, 8329 states have (on average 2.657101692880298) internal successors, (22131), 8329 states have internal predecessors, (22131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:54,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8330 states to 8330 states and 22131 transitions. [2022-03-15 13:56:54,109 INFO L78 Accepts]: Start accepts. Automaton has 8330 states and 22131 transitions. Word has length 153 [2022-03-15 13:56:54,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:56:54,109 INFO L470 AbstractCegarLoop]: Abstraction has 8330 states and 22131 transitions. [2022-03-15 13:56:54,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:54,109 INFO L276 IsEmpty]: Start isEmpty. Operand 8330 states and 22131 transitions. [2022-03-15 13:56:54,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:56:54,118 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:56:54,119 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:56:54,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable565 [2022-03-15 13:56:54,119 INFO L402 AbstractCegarLoop]: === Iteration 567 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:56:54,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:56:54,119 INFO L85 PathProgramCache]: Analyzing trace with hash -802607284, now seen corresponding path program 13 times [2022-03-15 13:56:54,119 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:56:54,119 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697173955] [2022-03-15 13:56:54,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:56:54,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:56:54,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:56:54,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:56:54,591 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:56:54,591 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697173955] [2022-03-15 13:56:54,591 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697173955] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:56:54,591 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:56:54,591 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:56:54,591 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912987138] [2022-03-15 13:56:54,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:56:54,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:56:54,591 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:56:54,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:56:54,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:56:54,592 INFO L87 Difference]: Start difference. First operand 8330 states and 22131 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:00,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:00,506 INFO L93 Difference]: Finished difference Result 20918 states and 55492 transitions. [2022-03-15 13:57:00,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-15 13:57:00,506 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:57:00,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:00,534 INFO L225 Difference]: With dead ends: 20918 [2022-03-15 13:57:00,534 INFO L226 Difference]: Without dead ends: 20306 [2022-03-15 13:57:00,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2411 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=2543, Invalid=8799, Unknown=0, NotChecked=0, Total=11342 [2022-03-15 13:57:00,534 INFO L933 BasicCegarLoop]: 604 mSDtfsCounter, 1689 mSDsluCounter, 12128 mSDsCounter, 0 mSdLazyCounter, 2269 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1689 SdHoareTripleChecker+Valid, 12482 SdHoareTripleChecker+Invalid, 2269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:00,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1689 Valid, 12482 Invalid, 2269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2269 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 13:57:00,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20306 states. [2022-03-15 13:57:00,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20306 to 8326. [2022-03-15 13:57:00,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8326 states, 8325 states have (on average 2.657057057057057) internal successors, (22120), 8325 states have internal predecessors, (22120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:00,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8326 states to 8326 states and 22120 transitions. [2022-03-15 13:57:00,681 INFO L78 Accepts]: Start accepts. Automaton has 8326 states and 22120 transitions. Word has length 153 [2022-03-15 13:57:00,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:00,681 INFO L470 AbstractCegarLoop]: Abstraction has 8326 states and 22120 transitions. [2022-03-15 13:57:00,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:00,681 INFO L276 IsEmpty]: Start isEmpty. Operand 8326 states and 22120 transitions. [2022-03-15 13:57:00,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:57:00,690 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:00,690 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:00,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable566 [2022-03-15 13:57:00,690 INFO L402 AbstractCegarLoop]: === Iteration 568 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:57:00,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:00,691 INFO L85 PathProgramCache]: Analyzing trace with hash 407076960, now seen corresponding path program 14 times [2022-03-15 13:57:00,691 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:00,691 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661907218] [2022-03-15 13:57:00,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:00,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:00,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:01,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:01,192 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:01,192 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661907218] [2022-03-15 13:57:01,192 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661907218] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:01,192 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:01,192 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:57:01,192 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178270427] [2022-03-15 13:57:01,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:01,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:57:01,192 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:01,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:57:01,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:57:01,193 INFO L87 Difference]: Start difference. First operand 8326 states and 22120 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:07,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:07,763 INFO L93 Difference]: Finished difference Result 21378 states and 56701 transitions. [2022-03-15 13:57:07,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-03-15 13:57:07,764 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:57:07,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:07,798 INFO L225 Difference]: With dead ends: 21378 [2022-03-15 13:57:07,798 INFO L226 Difference]: Without dead ends: 20638 [2022-03-15 13:57:07,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3223 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=3069, Invalid=10271, Unknown=0, NotChecked=0, Total=13340 [2022-03-15 13:57:07,800 INFO L933 BasicCegarLoop]: 611 mSDtfsCounter, 1839 mSDsluCounter, 11008 mSDsCounter, 0 mSdLazyCounter, 2078 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1839 SdHoareTripleChecker+Valid, 11395 SdHoareTripleChecker+Invalid, 2078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:07,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1839 Valid, 11395 Invalid, 2078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2078 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 13:57:07,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20638 states. [2022-03-15 13:57:07,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20638 to 8314. [2022-03-15 13:57:07,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8314 states, 8313 states have (on average 2.6559605437266933) internal successors, (22079), 8313 states have internal predecessors, (22079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:07,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8314 states to 8314 states and 22079 transitions. [2022-03-15 13:57:07,994 INFO L78 Accepts]: Start accepts. Automaton has 8314 states and 22079 transitions. Word has length 153 [2022-03-15 13:57:07,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:07,994 INFO L470 AbstractCegarLoop]: Abstraction has 8314 states and 22079 transitions. [2022-03-15 13:57:07,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:07,994 INFO L276 IsEmpty]: Start isEmpty. Operand 8314 states and 22079 transitions. [2022-03-15 13:57:08,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:57:08,004 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:08,004 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:08,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable567 [2022-03-15 13:57:08,004 INFO L402 AbstractCegarLoop]: === Iteration 569 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:57:08,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:08,004 INFO L85 PathProgramCache]: Analyzing trace with hash -962304004, now seen corresponding path program 15 times [2022-03-15 13:57:08,004 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:08,004 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424069413] [2022-03-15 13:57:08,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:08,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:08,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:08,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:08,462 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:08,462 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424069413] [2022-03-15 13:57:08,462 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424069413] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:08,462 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:08,462 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:57:08,462 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824848518] [2022-03-15 13:57:08,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:08,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:57:08,462 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:08,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:57:08,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:57:08,463 INFO L87 Difference]: Start difference. First operand 8314 states and 22079 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:12,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:12,274 INFO L93 Difference]: Finished difference Result 20760 states and 55053 transitions. [2022-03-15 13:57:12,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-15 13:57:12,274 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:57:12,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:12,306 INFO L225 Difference]: With dead ends: 20760 [2022-03-15 13:57:12,306 INFO L226 Difference]: Without dead ends: 20269 [2022-03-15 13:57:12,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 624 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1309, Invalid=4241, Unknown=0, NotChecked=0, Total=5550 [2022-03-15 13:57:12,307 INFO L933 BasicCegarLoop]: 575 mSDtfsCounter, 1426 mSDsluCounter, 11621 mSDsCounter, 0 mSdLazyCounter, 2280 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1426 SdHoareTripleChecker+Valid, 11940 SdHoareTripleChecker+Invalid, 2280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:12,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1426 Valid, 11940 Invalid, 2280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2280 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 13:57:12,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20269 states. [2022-03-15 13:57:12,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20269 to 8334. [2022-03-15 13:57:12,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8334 states, 8333 states have (on average 2.65570622824913) internal successors, (22130), 8333 states have internal predecessors, (22130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:12,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8334 states to 8334 states and 22130 transitions. [2022-03-15 13:57:12,473 INFO L78 Accepts]: Start accepts. Automaton has 8334 states and 22130 transitions. Word has length 153 [2022-03-15 13:57:12,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:12,474 INFO L470 AbstractCegarLoop]: Abstraction has 8334 states and 22130 transitions. [2022-03-15 13:57:12,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:12,474 INFO L276 IsEmpty]: Start isEmpty. Operand 8334 states and 22130 transitions. [2022-03-15 13:57:12,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:57:12,482 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:12,482 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:12,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable568 [2022-03-15 13:57:12,482 INFO L402 AbstractCegarLoop]: === Iteration 570 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:57:12,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:12,483 INFO L85 PathProgramCache]: Analyzing trace with hash 665219114, now seen corresponding path program 16 times [2022-03-15 13:57:12,483 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:12,483 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624313439] [2022-03-15 13:57:12,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:12,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:12,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:12,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:12,987 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:12,987 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624313439] [2022-03-15 13:57:12,987 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624313439] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:12,987 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:12,987 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:57:12,987 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125706263] [2022-03-15 13:57:12,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:12,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:57:12,988 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:12,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:57:12,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:57:12,988 INFO L87 Difference]: Start difference. First operand 8334 states and 22130 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:16,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:16,625 INFO L93 Difference]: Finished difference Result 20726 states and 54964 transitions. [2022-03-15 13:57:16,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-15 13:57:16,625 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:57:16,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:16,657 INFO L225 Difference]: With dead ends: 20726 [2022-03-15 13:57:16,657 INFO L226 Difference]: Without dead ends: 20234 [2022-03-15 13:57:16,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 819 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1298, Invalid=4554, Unknown=0, NotChecked=0, Total=5852 [2022-03-15 13:57:16,659 INFO L933 BasicCegarLoop]: 577 mSDtfsCounter, 1439 mSDsluCounter, 10515 mSDsCounter, 0 mSdLazyCounter, 2076 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1439 SdHoareTripleChecker+Valid, 10876 SdHoareTripleChecker+Invalid, 2076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:16,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1439 Valid, 10876 Invalid, 2076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2076 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 13:57:16,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20234 states. [2022-03-15 13:57:16,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20234 to 8330. [2022-03-15 13:57:16,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8330 states, 8329 states have (on average 2.655660943690719) internal successors, (22119), 8329 states have internal predecessors, (22119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:16,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8330 states to 8330 states and 22119 transitions. [2022-03-15 13:57:16,851 INFO L78 Accepts]: Start accepts. Automaton has 8330 states and 22119 transitions. Word has length 153 [2022-03-15 13:57:16,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:16,851 INFO L470 AbstractCegarLoop]: Abstraction has 8330 states and 22119 transitions. [2022-03-15 13:57:16,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:16,851 INFO L276 IsEmpty]: Start isEmpty. Operand 8330 states and 22119 transitions. [2022-03-15 13:57:16,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:57:16,860 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:16,861 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:16,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable569 [2022-03-15 13:57:16,861 INFO L402 AbstractCegarLoop]: === Iteration 571 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:57:16,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:16,861 INFO L85 PathProgramCache]: Analyzing trace with hash -455838226, now seen corresponding path program 17 times [2022-03-15 13:57:16,861 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:16,861 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885250992] [2022-03-15 13:57:16,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:16,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:16,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:17,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:17,340 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:17,340 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885250992] [2022-03-15 13:57:17,340 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885250992] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:17,340 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:17,341 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:57:17,341 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704717730] [2022-03-15 13:57:17,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:17,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:57:17,341 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:17,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:57:17,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:57:17,341 INFO L87 Difference]: Start difference. First operand 8330 states and 22119 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:22,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:22,201 INFO L93 Difference]: Finished difference Result 20762 states and 55059 transitions. [2022-03-15 13:57:22,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-15 13:57:22,202 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:57:22,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:22,234 INFO L225 Difference]: With dead ends: 20762 [2022-03-15 13:57:22,234 INFO L226 Difference]: Without dead ends: 20230 [2022-03-15 13:57:22,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1189 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1651, Invalid=5831, Unknown=0, NotChecked=0, Total=7482 [2022-03-15 13:57:22,236 INFO L933 BasicCegarLoop]: 586 mSDtfsCounter, 1523 mSDsluCounter, 11812 mSDsCounter, 0 mSdLazyCounter, 2269 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 12152 SdHoareTripleChecker+Invalid, 2269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:22,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1523 Valid, 12152 Invalid, 2269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2269 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 13:57:22,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20230 states. [2022-03-15 13:57:22,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20230 to 8326. [2022-03-15 13:57:22,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8326 states, 8325 states have (on average 2.6556156156156154) internal successors, (22108), 8325 states have internal predecessors, (22108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:22,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8326 states to 8326 states and 22108 transitions. [2022-03-15 13:57:22,427 INFO L78 Accepts]: Start accepts. Automaton has 8326 states and 22108 transitions. Word has length 153 [2022-03-15 13:57:22,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:22,427 INFO L470 AbstractCegarLoop]: Abstraction has 8326 states and 22108 transitions. [2022-03-15 13:57:22,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:22,427 INFO L276 IsEmpty]: Start isEmpty. Operand 8326 states and 22108 transitions. [2022-03-15 13:57:22,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:57:22,436 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:22,436 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:22,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable570 [2022-03-15 13:57:22,437 INFO L402 AbstractCegarLoop]: === Iteration 572 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:57:22,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:22,437 INFO L85 PathProgramCache]: Analyzing trace with hash -980973762, now seen corresponding path program 18 times [2022-03-15 13:57:22,437 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:22,437 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272687568] [2022-03-15 13:57:22,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:22,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:22,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:22,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:22,942 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:22,942 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272687568] [2022-03-15 13:57:22,942 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272687568] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:22,942 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:22,942 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:57:22,942 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695241708] [2022-03-15 13:57:22,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:22,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:57:22,942 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:22,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:57:22,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:57:22,943 INFO L87 Difference]: Start difference. First operand 8326 states and 22108 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:27,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:27,898 INFO L93 Difference]: Finished difference Result 20990 states and 55658 transitions. [2022-03-15 13:57:27,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-15 13:57:27,898 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:57:27,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:27,925 INFO L225 Difference]: With dead ends: 20990 [2022-03-15 13:57:27,925 INFO L226 Difference]: Without dead ends: 20418 [2022-03-15 13:57:27,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1765 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=2039, Invalid=7081, Unknown=0, NotChecked=0, Total=9120 [2022-03-15 13:57:27,925 INFO L933 BasicCegarLoop]: 592 mSDtfsCounter, 1620 mSDsluCounter, 11371 mSDsCounter, 0 mSdLazyCounter, 2155 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1620 SdHoareTripleChecker+Valid, 11727 SdHoareTripleChecker+Invalid, 2155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:27,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1620 Valid, 11727 Invalid, 2155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2155 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 13:57:27,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20418 states. [2022-03-15 13:57:28,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20418 to 8322. [2022-03-15 13:57:28,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8322 states, 8321 states have (on average 2.6555702439610624) internal successors, (22097), 8321 states have internal predecessors, (22097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:28,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8322 states to 8322 states and 22097 transitions. [2022-03-15 13:57:28,099 INFO L78 Accepts]: Start accepts. Automaton has 8322 states and 22097 transitions. Word has length 153 [2022-03-15 13:57:28,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:28,099 INFO L470 AbstractCegarLoop]: Abstraction has 8322 states and 22097 transitions. [2022-03-15 13:57:28,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:28,099 INFO L276 IsEmpty]: Start isEmpty. Operand 8322 states and 22097 transitions. [2022-03-15 13:57:28,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:57:28,108 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:28,108 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:28,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable571 [2022-03-15 13:57:28,108 INFO L402 AbstractCegarLoop]: === Iteration 573 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:57:28,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:28,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1171287166, now seen corresponding path program 19 times [2022-03-15 13:57:28,108 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:28,108 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319738475] [2022-03-15 13:57:28,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:28,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:28,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:28,561 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:28,561 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319738475] [2022-03-15 13:57:28,561 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319738475] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:28,561 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:28,561 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:57:28,561 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164435240] [2022-03-15 13:57:28,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:28,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:57:28,562 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:28,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:57:28,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:57:28,562 INFO L87 Difference]: Start difference. First operand 8322 states and 22097 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:32,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:32,444 INFO L93 Difference]: Finished difference Result 20736 states and 54983 transitions. [2022-03-15 13:57:32,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-15 13:57:32,444 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:57:32,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:32,472 INFO L225 Difference]: With dead ends: 20736 [2022-03-15 13:57:32,472 INFO L226 Difference]: Without dead ends: 20245 [2022-03-15 13:57:32,473 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1349, Invalid=4351, Unknown=0, NotChecked=0, Total=5700 [2022-03-15 13:57:32,473 INFO L933 BasicCegarLoop]: 577 mSDtfsCounter, 1426 mSDsluCounter, 12206 mSDsCounter, 0 mSdLazyCounter, 2369 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1426 SdHoareTripleChecker+Valid, 12512 SdHoareTripleChecker+Invalid, 2369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:32,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1426 Valid, 12512 Invalid, 2369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2369 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 13:57:32,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20245 states. [2022-03-15 13:57:32,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20245 to 8334. [2022-03-15 13:57:32,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8334 states, 8333 states have (on average 2.655226209048362) internal successors, (22126), 8333 states have internal predecessors, (22126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:32,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8334 states to 8334 states and 22126 transitions. [2022-03-15 13:57:32,635 INFO L78 Accepts]: Start accepts. Automaton has 8334 states and 22126 transitions. Word has length 153 [2022-03-15 13:57:32,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:32,635 INFO L470 AbstractCegarLoop]: Abstraction has 8334 states and 22126 transitions. [2022-03-15 13:57:32,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:32,635 INFO L276 IsEmpty]: Start isEmpty. Operand 8334 states and 22126 transitions. [2022-03-15 13:57:32,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:57:32,644 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:32,644 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:32,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable572 [2022-03-15 13:57:32,644 INFO L402 AbstractCegarLoop]: === Iteration 574 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:57:32,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:32,644 INFO L85 PathProgramCache]: Analyzing trace with hash 456235952, now seen corresponding path program 20 times [2022-03-15 13:57:32,644 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:32,644 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600777923] [2022-03-15 13:57:32,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:32,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:32,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:33,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:33,137 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:33,137 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600777923] [2022-03-15 13:57:33,137 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600777923] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:33,137 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:33,137 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:57:33,137 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723135130] [2022-03-15 13:57:33,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:33,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:57:33,137 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:33,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:57:33,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:57:33,138 INFO L87 Difference]: Start difference. First operand 8334 states and 22126 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:36,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:36,933 INFO L93 Difference]: Finished difference Result 20694 states and 54872 transitions. [2022-03-15 13:57:36,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-15 13:57:36,933 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:57:36,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:36,959 INFO L225 Difference]: With dead ends: 20694 [2022-03-15 13:57:36,959 INFO L226 Difference]: Without dead ends: 20202 [2022-03-15 13:57:36,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 811 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1303, Invalid=4549, Unknown=0, NotChecked=0, Total=5852 [2022-03-15 13:57:36,960 INFO L933 BasicCegarLoop]: 578 mSDtfsCounter, 1422 mSDsluCounter, 12230 mSDsCounter, 0 mSdLazyCounter, 2366 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1422 SdHoareTripleChecker+Valid, 12550 SdHoareTripleChecker+Invalid, 2366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:36,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1422 Valid, 12550 Invalid, 2366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2366 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 13:57:36,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20202 states. [2022-03-15 13:57:37,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20202 to 8330. [2022-03-15 13:57:37,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8330 states, 8329 states have (on average 2.6551806939608595) internal successors, (22115), 8329 states have internal predecessors, (22115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:37,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8330 states to 8330 states and 22115 transitions. [2022-03-15 13:57:37,126 INFO L78 Accepts]: Start accepts. Automaton has 8330 states and 22115 transitions. Word has length 153 [2022-03-15 13:57:37,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:37,126 INFO L470 AbstractCegarLoop]: Abstraction has 8330 states and 22115 transitions. [2022-03-15 13:57:37,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:37,127 INFO L276 IsEmpty]: Start isEmpty. Operand 8330 states and 22115 transitions. [2022-03-15 13:57:37,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:57:37,136 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:37,136 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:37,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable573 [2022-03-15 13:57:37,136 INFO L402 AbstractCegarLoop]: === Iteration 575 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:57:37,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:37,137 INFO L85 PathProgramCache]: Analyzing trace with hash -664821388, now seen corresponding path program 21 times [2022-03-15 13:57:37,137 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:37,137 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829628542] [2022-03-15 13:57:37,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:37,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:37,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:37,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:37,592 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:37,592 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829628542] [2022-03-15 13:57:37,592 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829628542] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:37,592 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:37,592 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:57:37,592 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247103086] [2022-03-15 13:57:37,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:37,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:57:37,592 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:37,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:57:37,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:57:37,593 INFO L87 Difference]: Start difference. First operand 8330 states and 22115 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:42,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:42,013 INFO L93 Difference]: Finished difference Result 20862 states and 55314 transitions. [2022-03-15 13:57:42,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-15 13:57:42,014 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:57:42,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:42,045 INFO L225 Difference]: With dead ends: 20862 [2022-03-15 13:57:42,045 INFO L226 Difference]: Without dead ends: 20330 [2022-03-15 13:57:42,046 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1142 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1615, Invalid=5695, Unknown=0, NotChecked=0, Total=7310 [2022-03-15 13:57:42,047 INFO L933 BasicCegarLoop]: 584 mSDtfsCounter, 1534 mSDsluCounter, 11789 mSDsCounter, 0 mSdLazyCounter, 2260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1534 SdHoareTripleChecker+Valid, 12127 SdHoareTripleChecker+Invalid, 2260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:42,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1534 Valid, 12127 Invalid, 2260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2260 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 13:57:42,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20330 states. [2022-03-15 13:57:42,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20330 to 8326. [2022-03-15 13:57:42,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8326 states, 8325 states have (on average 2.655135135135135) internal successors, (22104), 8325 states have internal predecessors, (22104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:42,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8326 states to 8326 states and 22104 transitions. [2022-03-15 13:57:42,225 INFO L78 Accepts]: Start accepts. Automaton has 8326 states and 22104 transitions. Word has length 153 [2022-03-15 13:57:42,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:42,225 INFO L470 AbstractCegarLoop]: Abstraction has 8326 states and 22104 transitions. [2022-03-15 13:57:42,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:42,225 INFO L276 IsEmpty]: Start isEmpty. Operand 8326 states and 22104 transitions. [2022-03-15 13:57:42,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:57:42,234 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:42,234 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:42,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable574 [2022-03-15 13:57:42,234 INFO L402 AbstractCegarLoop]: === Iteration 576 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:57:42,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:42,234 INFO L85 PathProgramCache]: Analyzing trace with hash -592191664, now seen corresponding path program 22 times [2022-03-15 13:57:42,234 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:42,234 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722993240] [2022-03-15 13:57:42,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:42,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:42,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:42,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:42,713 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:42,713 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722993240] [2022-03-15 13:57:42,713 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722993240] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:42,713 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:42,713 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:57:42,714 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629355944] [2022-03-15 13:57:42,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:42,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:57:42,714 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:42,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:57:42,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:57:42,714 INFO L87 Difference]: Start difference. First operand 8326 states and 22104 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:47,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:47,140 INFO L93 Difference]: Finished difference Result 20645 states and 54735 transitions. [2022-03-15 13:57:47,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-15 13:57:47,141 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:57:47,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:47,167 INFO L225 Difference]: With dead ends: 20645 [2022-03-15 13:57:47,167 INFO L226 Difference]: Without dead ends: 20111 [2022-03-15 13:57:47,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 897 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1633, Invalid=5009, Unknown=0, NotChecked=0, Total=6642 [2022-03-15 13:57:47,168 INFO L933 BasicCegarLoop]: 580 mSDtfsCounter, 1505 mSDsluCounter, 11678 mSDsCounter, 0 mSdLazyCounter, 2239 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 12002 SdHoareTripleChecker+Invalid, 2239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:47,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1505 Valid, 12002 Invalid, 2239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2239 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 13:57:47,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20111 states. [2022-03-15 13:57:47,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20111 to 8330. [2022-03-15 13:57:47,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8330 states, 8329 states have (on average 2.654700444231) internal successors, (22111), 8329 states have internal predecessors, (22111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:47,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8330 states to 8330 states and 22111 transitions. [2022-03-15 13:57:47,325 INFO L78 Accepts]: Start accepts. Automaton has 8330 states and 22111 transitions. Word has length 153 [2022-03-15 13:57:47,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:47,325 INFO L470 AbstractCegarLoop]: Abstraction has 8330 states and 22111 transitions. [2022-03-15 13:57:47,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:47,325 INFO L276 IsEmpty]: Start isEmpty. Operand 8330 states and 22111 transitions. [2022-03-15 13:57:47,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:57:47,335 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:47,335 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:47,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable575 [2022-03-15 13:57:47,335 INFO L402 AbstractCegarLoop]: === Iteration 577 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:57:47,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:47,335 INFO L85 PathProgramCache]: Analyzing trace with hash 2144860282, now seen corresponding path program 23 times [2022-03-15 13:57:47,335 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:47,335 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86161302] [2022-03-15 13:57:47,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:47,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:47,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:47,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:47,790 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:47,790 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86161302] [2022-03-15 13:57:47,790 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86161302] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:47,790 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:47,790 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:57:47,790 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873734734] [2022-03-15 13:57:47,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:47,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:57:47,790 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:47,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:57:47,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:57:47,791 INFO L87 Difference]: Start difference. First operand 8330 states and 22111 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:51,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:51,881 INFO L93 Difference]: Finished difference Result 20653 states and 54753 transitions. [2022-03-15 13:57:51,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-15 13:57:51,881 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:57:51,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:51,911 INFO L225 Difference]: With dead ends: 20653 [2022-03-15 13:57:51,911 INFO L226 Difference]: Without dead ends: 20162 [2022-03-15 13:57:51,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 688 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1391, Invalid=4461, Unknown=0, NotChecked=0, Total=5852 [2022-03-15 13:57:51,912 INFO L933 BasicCegarLoop]: 580 mSDtfsCounter, 1442 mSDsluCounter, 12246 mSDsCounter, 0 mSdLazyCounter, 2356 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1442 SdHoareTripleChecker+Valid, 12554 SdHoareTripleChecker+Invalid, 2356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:51,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1442 Valid, 12554 Invalid, 2356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2356 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 13:57:51,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20162 states. [2022-03-15 13:57:52,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20162 to 8334. [2022-03-15 13:57:52,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8334 states, 8333 states have (on average 2.654266170646826) internal successors, (22118), 8333 states have internal predecessors, (22118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:52,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8334 states to 8334 states and 22118 transitions. [2022-03-15 13:57:52,090 INFO L78 Accepts]: Start accepts. Automaton has 8334 states and 22118 transitions. Word has length 153 [2022-03-15 13:57:52,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:52,090 INFO L470 AbstractCegarLoop]: Abstraction has 8334 states and 22118 transitions. [2022-03-15 13:57:52,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:52,090 INFO L276 IsEmpty]: Start isEmpty. Operand 8334 states and 22118 transitions. [2022-03-15 13:57:52,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:57:52,099 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:52,099 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:52,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable576 [2022-03-15 13:57:52,099 INFO L402 AbstractCegarLoop]: === Iteration 578 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:57:52,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:52,099 INFO L85 PathProgramCache]: Analyzing trace with hash -522583896, now seen corresponding path program 24 times [2022-03-15 13:57:52,099 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:52,099 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926397152] [2022-03-15 13:57:52,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:52,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:52,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:52,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:52,623 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:52,623 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926397152] [2022-03-15 13:57:52,623 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926397152] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:52,623 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:52,623 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:57:52,624 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681151931] [2022-03-15 13:57:52,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:52,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:57:52,624 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:52,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:57:52,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=794, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:57:52,624 INFO L87 Difference]: Start difference. First operand 8334 states and 22118 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:56,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:56,232 INFO L93 Difference]: Finished difference Result 20603 states and 54620 transitions. [2022-03-15 13:57:56,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-15 13:57:56,232 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:57:56,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:56,262 INFO L225 Difference]: With dead ends: 20603 [2022-03-15 13:57:56,262 INFO L226 Difference]: Without dead ends: 20099 [2022-03-15 13:57:56,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 825 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1263, Invalid=4437, Unknown=0, NotChecked=0, Total=5700 [2022-03-15 13:57:56,263 INFO L933 BasicCegarLoop]: 586 mSDtfsCounter, 1408 mSDsluCounter, 10672 mSDsCounter, 0 mSdLazyCounter, 2074 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1408 SdHoareTripleChecker+Valid, 11026 SdHoareTripleChecker+Invalid, 2074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:56,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1408 Valid, 11026 Invalid, 2074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2074 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 13:57:56,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20099 states. [2022-03-15 13:57:56,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20099 to 8318. [2022-03-15 13:57:56,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8318 states, 8317 states have (on average 2.655524828664182) internal successors, (22086), 8317 states have internal predecessors, (22086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:56,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8318 states to 8318 states and 22086 transitions. [2022-03-15 13:57:56,432 INFO L78 Accepts]: Start accepts. Automaton has 8318 states and 22086 transitions. Word has length 153 [2022-03-15 13:57:56,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:56,433 INFO L470 AbstractCegarLoop]: Abstraction has 8318 states and 22086 transitions. [2022-03-15 13:57:56,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:56,433 INFO L276 IsEmpty]: Start isEmpty. Operand 8318 states and 22086 transitions. [2022-03-15 13:57:56,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:57:56,441 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:56,441 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:56,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable577 [2022-03-15 13:57:56,441 INFO L402 AbstractCegarLoop]: === Iteration 579 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:57:56,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:56,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1782868580, now seen corresponding path program 25 times [2022-03-15 13:57:56,441 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:56,441 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740316246] [2022-03-15 13:57:56,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:56,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:56,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:56,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:56,906 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:56,906 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740316246] [2022-03-15 13:57:56,906 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740316246] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:56,906 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:56,906 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:57:56,906 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762018600] [2022-03-15 13:57:56,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:56,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:57:56,907 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:56,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:57:56,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:57:56,907 INFO L87 Difference]: Start difference. First operand 8318 states and 22086 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:00,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:58:00,676 INFO L93 Difference]: Finished difference Result 20665 states and 54794 transitions. [2022-03-15 13:58:00,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-15 13:58:00,676 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:58:00,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:58:00,706 INFO L225 Difference]: With dead ends: 20665 [2022-03-15 13:58:00,706 INFO L226 Difference]: Without dead ends: 20174 [2022-03-15 13:58:00,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 590 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1271, Invalid=4131, Unknown=0, NotChecked=0, Total=5402 [2022-03-15 13:58:00,707 INFO L933 BasicCegarLoop]: 574 mSDtfsCounter, 1448 mSDsluCounter, 11628 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1448 SdHoareTripleChecker+Valid, 11945 SdHoareTripleChecker+Invalid, 2261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 13:58:00,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1448 Valid, 11945 Invalid, 2261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 13:58:00,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20174 states. [2022-03-15 13:58:00,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20174 to 8334. [2022-03-15 13:58:00,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8334 states, 8333 states have (on average 2.655226209048362) internal successors, (22126), 8333 states have internal predecessors, (22126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:00,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8334 states to 8334 states and 22126 transitions. [2022-03-15 13:58:00,891 INFO L78 Accepts]: Start accepts. Automaton has 8334 states and 22126 transitions. Word has length 153 [2022-03-15 13:58:00,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:58:00,891 INFO L470 AbstractCegarLoop]: Abstraction has 8334 states and 22126 transitions. [2022-03-15 13:58:00,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:00,892 INFO L276 IsEmpty]: Start isEmpty. Operand 8334 states and 22126 transitions. [2022-03-15 13:58:00,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:58:00,901 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:58:00,901 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:58:00,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable578 [2022-03-15 13:58:00,901 INFO L402 AbstractCegarLoop]: === Iteration 580 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:58:00,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:58:00,902 INFO L85 PathProgramCache]: Analyzing trace with hash -155345462, now seen corresponding path program 26 times [2022-03-15 13:58:00,902 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:58:00,902 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401661743] [2022-03-15 13:58:00,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:58:00,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:58:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:58:01,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:58:01,461 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:58:01,461 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401661743] [2022-03-15 13:58:01,461 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401661743] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:58:01,461 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:58:01,461 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:58:01,461 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306285543] [2022-03-15 13:58:01,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:58:01,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:58:01,462 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:58:01,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:58:01,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:58:01,462 INFO L87 Difference]: Start difference. First operand 8334 states and 22126 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:05,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:58:05,115 INFO L93 Difference]: Finished difference Result 20643 states and 54738 transitions. [2022-03-15 13:58:05,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-15 13:58:05,115 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:58:05,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:58:05,143 INFO L225 Difference]: With dead ends: 20643 [2022-03-15 13:58:05,143 INFO L226 Difference]: Without dead ends: 20151 [2022-03-15 13:58:05,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 822 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1293, Invalid=4559, Unknown=0, NotChecked=0, Total=5852 [2022-03-15 13:58:05,144 INFO L933 BasicCegarLoop]: 583 mSDtfsCounter, 1429 mSDsluCounter, 11198 mSDsCounter, 0 mSdLazyCounter, 2171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1429 SdHoareTripleChecker+Valid, 11538 SdHoareTripleChecker+Invalid, 2171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 13:58:05,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1429 Valid, 11538 Invalid, 2171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2171 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 13:58:05,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20151 states. [2022-03-15 13:58:05,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20151 to 8330. [2022-03-15 13:58:05,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8330 states, 8329 states have (on average 2.6551806939608595) internal successors, (22115), 8329 states have internal predecessors, (22115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:05,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8330 states to 8330 states and 22115 transitions. [2022-03-15 13:58:05,317 INFO L78 Accepts]: Start accepts. Automaton has 8330 states and 22115 transitions. Word has length 153 [2022-03-15 13:58:05,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:58:05,317 INFO L470 AbstractCegarLoop]: Abstraction has 8330 states and 22115 transitions. [2022-03-15 13:58:05,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:05,317 INFO L276 IsEmpty]: Start isEmpty. Operand 8330 states and 22115 transitions. [2022-03-15 13:58:05,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:58:05,327 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:58:05,327 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:58:05,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable579 [2022-03-15 13:58:05,327 INFO L402 AbstractCegarLoop]: === Iteration 581 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:58:05,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:58:05,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1276402802, now seen corresponding path program 27 times [2022-03-15 13:58:05,328 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:58:05,328 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961576901] [2022-03-15 13:58:05,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:58:05,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:58:05,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:58:05,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:58:05,807 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:58:05,807 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961576901] [2022-03-15 13:58:05,807 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961576901] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:58:05,807 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:58:05,807 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:58:05,807 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632243415] [2022-03-15 13:58:05,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:58:05,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:58:05,807 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:58:05,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:58:05,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:58:05,808 INFO L87 Difference]: Start difference. First operand 8330 states and 22115 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:10,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:58:10,101 INFO L93 Difference]: Finished difference Result 20679 states and 54833 transitions. [2022-03-15 13:58:10,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-15 13:58:10,101 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:58:10,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:58:10,130 INFO L225 Difference]: With dead ends: 20679 [2022-03-15 13:58:10,131 INFO L226 Difference]: Without dead ends: 20147 [2022-03-15 13:58:10,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1262 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1643, Invalid=5839, Unknown=0, NotChecked=0, Total=7482 [2022-03-15 13:58:10,132 INFO L933 BasicCegarLoop]: 592 mSDtfsCounter, 1515 mSDsluCounter, 11928 mSDsCounter, 0 mSdLazyCounter, 2269 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 12260 SdHoareTripleChecker+Invalid, 2269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 13:58:10,132 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1515 Valid, 12260 Invalid, 2269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2269 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 13:58:10,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20147 states. [2022-03-15 13:58:10,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20147 to 8326. [2022-03-15 13:58:10,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8326 states, 8325 states have (on average 2.655135135135135) internal successors, (22104), 8325 states have internal predecessors, (22104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:10,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8326 states to 8326 states and 22104 transitions. [2022-03-15 13:58:10,324 INFO L78 Accepts]: Start accepts. Automaton has 8326 states and 22104 transitions. Word has length 153 [2022-03-15 13:58:10,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:58:10,324 INFO L470 AbstractCegarLoop]: Abstraction has 8326 states and 22104 transitions. [2022-03-15 13:58:10,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:10,324 INFO L276 IsEmpty]: Start isEmpty. Operand 8326 states and 22104 transitions. [2022-03-15 13:58:10,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:58:10,334 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:58:10,334 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:58:10,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable580 [2022-03-15 13:58:10,334 INFO L402 AbstractCegarLoop]: === Iteration 582 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:58:10,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:58:10,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1801538338, now seen corresponding path program 28 times [2022-03-15 13:58:10,335 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:58:10,335 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152493772] [2022-03-15 13:58:10,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:58:10,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:58:10,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:58:10,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:58:10,829 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:58:10,829 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152493772] [2022-03-15 13:58:10,830 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152493772] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:58:10,830 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:58:10,830 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:58:10,830 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782328449] [2022-03-15 13:58:10,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:58:10,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:58:10,830 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:58:10,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:58:10,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:58:10,830 INFO L87 Difference]: Start difference. First operand 8326 states and 22104 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:15,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:58:15,809 INFO L93 Difference]: Finished difference Result 20715 states and 54928 transitions. [2022-03-15 13:58:15,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-03-15 13:58:15,809 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:58:15,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:58:15,840 INFO L225 Difference]: With dead ends: 20715 [2022-03-15 13:58:15,841 INFO L226 Difference]: Without dead ends: 20143 [2022-03-15 13:58:15,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1825 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=2069, Invalid=7243, Unknown=0, NotChecked=0, Total=9312 [2022-03-15 13:58:15,842 INFO L933 BasicCegarLoop]: 601 mSDtfsCounter, 1577 mSDsluCounter, 12678 mSDsCounter, 0 mSdLazyCounter, 2353 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1577 SdHoareTripleChecker+Valid, 13002 SdHoareTripleChecker+Invalid, 2353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 13:58:15,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1577 Valid, 13002 Invalid, 2353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2353 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 13:58:15,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20143 states. [2022-03-15 13:58:15,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20143 to 8322. [2022-03-15 13:58:16,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8322 states, 8321 states have (on average 2.655089532508112) internal successors, (22093), 8321 states have internal predecessors, (22093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:16,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8322 states to 8322 states and 22093 transitions. [2022-03-15 13:58:16,018 INFO L78 Accepts]: Start accepts. Automaton has 8322 states and 22093 transitions. Word has length 153 [2022-03-15 13:58:16,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:58:16,018 INFO L470 AbstractCegarLoop]: Abstraction has 8322 states and 22093 transitions. [2022-03-15 13:58:16,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:16,018 INFO L276 IsEmpty]: Start isEmpty. Operand 8322 states and 22093 transitions. [2022-03-15 13:58:16,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:58:16,027 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:58:16,027 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:58:16,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable581 [2022-03-15 13:58:16,027 INFO L402 AbstractCegarLoop]: === Iteration 583 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:58:16,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:58:16,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1149245072, now seen corresponding path program 29 times [2022-03-15 13:58:16,027 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:58:16,027 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971142943] [2022-03-15 13:58:16,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:58:16,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:58:16,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:58:16,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:58:16,485 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:58:16,485 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971142943] [2022-03-15 13:58:16,485 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971142943] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:58:16,485 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:58:16,485 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:58:16,486 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709809961] [2022-03-15 13:58:16,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:58:16,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:58:16,486 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:58:16,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:58:16,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:58:16,486 INFO L87 Difference]: Start difference. First operand 8322 states and 22093 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:22,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:58:22,272 INFO L93 Difference]: Finished difference Result 20711 states and 54913 transitions. [2022-03-15 13:58:22,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-03-15 13:58:22,273 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:58:22,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:58:22,298 INFO L225 Difference]: With dead ends: 20711 [2022-03-15 13:58:22,298 INFO L226 Difference]: Without dead ends: 20083 [2022-03-15 13:58:22,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2422 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=2521, Invalid=8609, Unknown=0, NotChecked=0, Total=11130 [2022-03-15 13:58:22,299 INFO L933 BasicCegarLoop]: 607 mSDtfsCounter, 1664 mSDsluCounter, 11580 mSDsCounter, 0 mSdLazyCounter, 2153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1664 SdHoareTripleChecker+Valid, 11936 SdHoareTripleChecker+Invalid, 2153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 13:58:22,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1664 Valid, 11936 Invalid, 2153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2153 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 13:58:22,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20083 states. [2022-03-15 13:58:22,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20083 to 8302. [2022-03-15 13:58:22,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8302 states, 8301 states have (on average 2.656788338754367) internal successors, (22054), 8301 states have internal predecessors, (22054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:22,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8302 states to 8302 states and 22054 transitions. [2022-03-15 13:58:22,445 INFO L78 Accepts]: Start accepts. Automaton has 8302 states and 22054 transitions. Word has length 153 [2022-03-15 13:58:22,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:58:22,445 INFO L470 AbstractCegarLoop]: Abstraction has 8302 states and 22054 transitions. [2022-03-15 13:58:22,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:22,446 INFO L276 IsEmpty]: Start isEmpty. Operand 8302 states and 22054 transitions. [2022-03-15 13:58:22,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:58:22,454 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:58:22,454 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:58:22,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable582 [2022-03-15 13:58:22,454 INFO L402 AbstractCegarLoop]: === Iteration 584 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:58:22,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:58:22,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1329374552, now seen corresponding path program 30 times [2022-03-15 13:58:22,455 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:58:22,455 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090678478] [2022-03-15 13:58:22,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:58:22,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:58:22,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:58:22,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:58:22,914 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:58:22,914 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090678478] [2022-03-15 13:58:22,914 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090678478] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:58:22,914 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:58:22,914 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:58:22,914 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874592878] [2022-03-15 13:58:22,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:58:22,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:58:22,914 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:58:22,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:58:22,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:58:22,915 INFO L87 Difference]: Start difference. First operand 8302 states and 22054 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:26,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:58:26,510 INFO L93 Difference]: Finished difference Result 20531 states and 54450 transitions. [2022-03-15 13:58:26,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-15 13:58:26,510 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:58:26,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:58:26,540 INFO L225 Difference]: With dead ends: 20531 [2022-03-15 13:58:26,540 INFO L226 Difference]: Without dead ends: 20040 [2022-03-15 13:58:26,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1201, Invalid=3911, Unknown=0, NotChecked=0, Total=5112 [2022-03-15 13:58:26,541 INFO L933 BasicCegarLoop]: 572 mSDtfsCounter, 1435 mSDsluCounter, 11668 mSDsCounter, 0 mSdLazyCounter, 2255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1435 SdHoareTripleChecker+Valid, 11981 SdHoareTripleChecker+Invalid, 2255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 13:58:26,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1435 Valid, 11981 Invalid, 2255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2255 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 13:58:26,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20040 states. [2022-03-15 13:58:26,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20040 to 8334. [2022-03-15 13:58:26,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8334 states, 8333 states have (on average 2.656666266650666) internal successors, (22138), 8333 states have internal predecessors, (22138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:26,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8334 states to 8334 states and 22138 transitions. [2022-03-15 13:58:26,733 INFO L78 Accepts]: Start accepts. Automaton has 8334 states and 22138 transitions. Word has length 153 [2022-03-15 13:58:26,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:58:26,733 INFO L470 AbstractCegarLoop]: Abstraction has 8334 states and 22138 transitions. [2022-03-15 13:58:26,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:26,733 INFO L276 IsEmpty]: Start isEmpty. Operand 8334 states and 22138 transitions. [2022-03-15 13:58:26,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:58:26,743 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:58:26,743 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:58:26,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable583 [2022-03-15 13:58:26,743 INFO L402 AbstractCegarLoop]: === Iteration 585 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:58:26,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:58:26,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1338069626, now seen corresponding path program 31 times [2022-03-15 13:58:26,743 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:58:26,743 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711219331] [2022-03-15 13:58:26,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:58:26,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:58:26,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:58:27,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:58:27,239 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:58:27,239 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711219331] [2022-03-15 13:58:27,239 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711219331] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:58:27,239 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:58:27,239 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:58:27,239 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583463146] [2022-03-15 13:58:27,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:58:27,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:58:27,240 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:58:27,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:58:27,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=794, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:58:27,240 INFO L87 Difference]: Start difference. First operand 8334 states and 22138 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:30,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:58:30,746 INFO L93 Difference]: Finished difference Result 20528 states and 54440 transitions. [2022-03-15 13:58:30,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-15 13:58:30,747 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:58:30,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:58:30,773 INFO L225 Difference]: With dead ends: 20528 [2022-03-15 13:58:30,773 INFO L226 Difference]: Without dead ends: 20036 [2022-03-15 13:58:30,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 872 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1285, Invalid=4567, Unknown=0, NotChecked=0, Total=5852 [2022-03-15 13:58:30,774 INFO L933 BasicCegarLoop]: 569 mSDtfsCounter, 1490 mSDsluCounter, 9971 mSDsCounter, 0 mSdLazyCounter, 1945 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 10335 SdHoareTripleChecker+Invalid, 1945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 13:58:30,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1490 Valid, 10335 Invalid, 1945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1945 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 13:58:30,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20036 states. [2022-03-15 13:58:30,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20036 to 8330. [2022-03-15 13:58:30,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8330 states, 8329 states have (on average 2.656621443150438) internal successors, (22127), 8329 states have internal predecessors, (22127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:30,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8330 states to 8330 states and 22127 transitions. [2022-03-15 13:58:30,951 INFO L78 Accepts]: Start accepts. Automaton has 8330 states and 22127 transitions. Word has length 153 [2022-03-15 13:58:30,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:58:30,952 INFO L470 AbstractCegarLoop]: Abstraction has 8330 states and 22127 transitions. [2022-03-15 13:58:30,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:30,952 INFO L276 IsEmpty]: Start isEmpty. Operand 8330 states and 22127 transitions. [2022-03-15 13:58:30,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:58:30,962 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:58:30,962 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:58:30,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable584 [2022-03-15 13:58:30,962 INFO L402 AbstractCegarLoop]: === Iteration 586 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:58:30,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:58:30,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1835840330, now seen corresponding path program 32 times [2022-03-15 13:58:30,962 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:58:30,962 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107571810] [2022-03-15 13:58:30,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:58:30,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:58:30,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:58:31,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:58:31,411 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:58:31,411 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107571810] [2022-03-15 13:58:31,411 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107571810] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:58:31,411 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:58:31,411 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:58:31,411 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078821300] [2022-03-15 13:58:31,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:58:31,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:58:31,411 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:58:31,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:58:31,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:58:31,412 INFO L87 Difference]: Start difference. First operand 8330 states and 22127 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:35,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:58:35,588 INFO L93 Difference]: Finished difference Result 20564 states and 54535 transitions. [2022-03-15 13:58:35,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-15 13:58:35,588 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:58:35,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:58:35,615 INFO L225 Difference]: With dead ends: 20564 [2022-03-15 13:58:35,616 INFO L226 Difference]: Without dead ends: 20032 [2022-03-15 13:58:35,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1268 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1623, Invalid=5859, Unknown=0, NotChecked=0, Total=7482 [2022-03-15 13:58:35,617 INFO L933 BasicCegarLoop]: 577 mSDtfsCounter, 1562 mSDsluCounter, 11792 mSDsCounter, 0 mSdLazyCounter, 2226 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1562 SdHoareTripleChecker+Valid, 12122 SdHoareTripleChecker+Invalid, 2226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 13:58:35,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1562 Valid, 12122 Invalid, 2226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2226 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 13:58:35,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20032 states. [2022-03-15 13:58:35,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20032 to 8326. [2022-03-15 13:58:35,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8326 states, 8325 states have (on average 2.6565765765765765) internal successors, (22116), 8325 states have internal predecessors, (22116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:35,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8326 states to 8326 states and 22116 transitions. [2022-03-15 13:58:35,780 INFO L78 Accepts]: Start accepts. Automaton has 8326 states and 22116 transitions. Word has length 153 [2022-03-15 13:58:35,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:58:35,781 INFO L470 AbstractCegarLoop]: Abstraction has 8326 states and 22116 transitions. [2022-03-15 13:58:35,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:35,781 INFO L276 IsEmpty]: Start isEmpty. Operand 8326 states and 22116 transitions. [2022-03-15 13:58:35,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:58:35,791 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:58:35,791 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:58:35,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable585 [2022-03-15 13:58:35,791 INFO L402 AbstractCegarLoop]: === Iteration 587 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:58:35,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:58:35,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1310704794, now seen corresponding path program 33 times [2022-03-15 13:58:35,791 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:58:35,791 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864184198] [2022-03-15 13:58:35,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:58:35,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:58:35,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:58:36,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:58:36,269 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:58:36,270 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864184198] [2022-03-15 13:58:36,270 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864184198] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:58:36,270 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:58:36,270 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:58:36,270 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669841563] [2022-03-15 13:58:36,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:58:36,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:58:36,270 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:58:36,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:58:36,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:58:36,270 INFO L87 Difference]: Start difference. First operand 8326 states and 22116 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:41,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:58:41,252 INFO L93 Difference]: Finished difference Result 20600 states and 54630 transitions. [2022-03-15 13:58:41,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-03-15 13:58:41,252 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:58:41,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:58:41,281 INFO L225 Difference]: With dead ends: 20600 [2022-03-15 13:58:41,281 INFO L226 Difference]: Without dead ends: 20028 [2022-03-15 13:58:41,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1766 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=2037, Invalid=7275, Unknown=0, NotChecked=0, Total=9312 [2022-03-15 13:58:41,282 INFO L933 BasicCegarLoop]: 585 mSDtfsCounter, 1662 mSDsluCounter, 11929 mSDsCounter, 0 mSdLazyCounter, 2210 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1662 SdHoareTripleChecker+Valid, 12265 SdHoareTripleChecker+Invalid, 2210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 13:58:41,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1662 Valid, 12265 Invalid, 2210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2210 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 13:58:41,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20028 states. [2022-03-15 13:58:41,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20028 to 8322. [2022-03-15 13:58:41,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8322 states, 8321 states have (on average 2.656531666866963) internal successors, (22105), 8321 states have internal predecessors, (22105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:41,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8322 states to 8322 states and 22105 transitions. [2022-03-15 13:58:41,455 INFO L78 Accepts]: Start accepts. Automaton has 8322 states and 22105 transitions. Word has length 153 [2022-03-15 13:58:41,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:58:41,455 INFO L470 AbstractCegarLoop]: Abstraction has 8322 states and 22105 transitions. [2022-03-15 13:58:41,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:41,456 INFO L276 IsEmpty]: Start isEmpty. Operand 8322 states and 22105 transitions. [2022-03-15 13:58:41,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:58:41,465 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:58:41,465 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:58:41,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable586 [2022-03-15 13:58:41,465 INFO L402 AbstractCegarLoop]: === Iteration 588 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:58:41,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:58:41,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1962998060, now seen corresponding path program 34 times [2022-03-15 13:58:41,465 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:58:41,465 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320737477] [2022-03-15 13:58:41,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:58:41,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:58:41,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:58:41,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:58:41,906 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:58:41,906 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320737477] [2022-03-15 13:58:41,906 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320737477] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:58:41,906 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:58:41,906 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:58:41,906 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697879496] [2022-03-15 13:58:41,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:58:41,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:58:41,906 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:58:41,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:58:41,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:58:41,907 INFO L87 Difference]: Start difference. First operand 8322 states and 22105 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:47,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:58:47,601 INFO L93 Difference]: Finished difference Result 20636 states and 54725 transitions. [2022-03-15 13:58:47,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-15 13:58:47,602 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:58:47,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:58:47,627 INFO L225 Difference]: With dead ends: 20636 [2022-03-15 13:58:47,627 INFO L226 Difference]: Without dead ends: 20024 [2022-03-15 13:58:47,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2506 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=2525, Invalid=8817, Unknown=0, NotChecked=0, Total=11342 [2022-03-15 13:58:47,628 INFO L933 BasicCegarLoop]: 593 mSDtfsCounter, 1732 mSDsluCounter, 11550 mSDsCounter, 0 mSdLazyCounter, 2107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1732 SdHoareTripleChecker+Valid, 11900 SdHoareTripleChecker+Invalid, 2107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 13:58:47,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1732 Valid, 11900 Invalid, 2107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2107 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 13:58:47,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20024 states. [2022-03-15 13:58:47,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20024 to 8318. [2022-03-15 13:58:47,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8318 states, 8317 states have (on average 2.65648671395936) internal successors, (22094), 8317 states have internal predecessors, (22094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:47,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8318 states to 8318 states and 22094 transitions. [2022-03-15 13:58:47,792 INFO L78 Accepts]: Start accepts. Automaton has 8318 states and 22094 transitions. Word has length 153 [2022-03-15 13:58:47,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:58:47,792 INFO L470 AbstractCegarLoop]: Abstraction has 8318 states and 22094 transitions. [2022-03-15 13:58:47,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:47,792 INFO L276 IsEmpty]: Start isEmpty. Operand 8318 states and 22094 transitions. [2022-03-15 13:58:47,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:58:47,802 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:58:47,802 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:58:47,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable587 [2022-03-15 13:58:47,802 INFO L402 AbstractCegarLoop]: === Iteration 589 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:58:47,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:58:47,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1122284992, now seen corresponding path program 35 times [2022-03-15 13:58:47,802 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:58:47,802 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160022205] [2022-03-15 13:58:47,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:58:47,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:58:47,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:58:48,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:58:48,315 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:58:48,315 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160022205] [2022-03-15 13:58:48,315 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160022205] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:58:48,315 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:58:48,315 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:58:48,315 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759538561] [2022-03-15 13:58:48,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:58:48,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:58:48,315 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:58:48,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:58:48,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=794, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:58:48,316 INFO L87 Difference]: Start difference. First operand 8318 states and 22094 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:54,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:58:54,855 INFO L93 Difference]: Finished difference Result 20752 states and 55032 transitions. [2022-03-15 13:58:54,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-03-15 13:58:54,855 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:58:54,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:58:54,884 INFO L225 Difference]: With dead ends: 20752 [2022-03-15 13:58:54,884 INFO L226 Difference]: Without dead ends: 20012 [2022-03-15 13:58:54,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3401 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=3089, Invalid=10483, Unknown=0, NotChecked=0, Total=13572 [2022-03-15 13:58:54,886 INFO L933 BasicCegarLoop]: 602 mSDtfsCounter, 1847 mSDsluCounter, 10981 mSDsCounter, 0 mSdLazyCounter, 2015 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1847 SdHoareTripleChecker+Valid, 11358 SdHoareTripleChecker+Invalid, 2015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 13:58:54,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1847 Valid, 11358 Invalid, 2015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2015 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 13:58:54,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20012 states. [2022-03-15 13:58:55,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20012 to 8306. [2022-03-15 13:58:55,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8306 states, 8305 states have (on average 2.656351595424443) internal successors, (22061), 8305 states have internal predecessors, (22061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:55,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8306 states to 8306 states and 22061 transitions. [2022-03-15 13:58:55,068 INFO L78 Accepts]: Start accepts. Automaton has 8306 states and 22061 transitions. Word has length 153 [2022-03-15 13:58:55,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:58:55,068 INFO L470 AbstractCegarLoop]: Abstraction has 8306 states and 22061 transitions. [2022-03-15 13:58:55,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:55,069 INFO L276 IsEmpty]: Start isEmpty. Operand 8306 states and 22061 transitions. [2022-03-15 13:58:55,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:58:55,080 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:58:55,080 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:58:55,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable588 [2022-03-15 13:58:55,080 INFO L402 AbstractCegarLoop]: === Iteration 590 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:58:55,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:58:55,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1864894446, now seen corresponding path program 36 times [2022-03-15 13:58:55,081 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:58:55,081 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584191429] [2022-03-15 13:58:55,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:58:55,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:58:55,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:58:55,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:58:55,594 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:58:55,594 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584191429] [2022-03-15 13:58:55,594 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584191429] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:58:55,594 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:58:55,594 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:58:55,594 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069053245] [2022-03-15 13:58:55,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:58:55,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:58:55,594 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:58:55,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:58:55,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=794, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:58:55,595 INFO L87 Difference]: Start difference. First operand 8306 states and 22061 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:59:02,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:59:02,444 INFO L93 Difference]: Finished difference Result 20555 states and 54505 transitions. [2022-03-15 13:59:02,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-03-15 13:59:02,445 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:59:02,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:59:02,476 INFO L225 Difference]: With dead ends: 20555 [2022-03-15 13:59:02,476 INFO L226 Difference]: Without dead ends: 19727 [2022-03-15 13:59:02,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3787 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=3499, Invalid=11263, Unknown=0, NotChecked=0, Total=14762 [2022-03-15 13:59:02,478 INFO L933 BasicCegarLoop]: 601 mSDtfsCounter, 1933 mSDsluCounter, 10339 mSDsCounter, 0 mSdLazyCounter, 1852 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1933 SdHoareTripleChecker+Valid, 10727 SdHoareTripleChecker+Invalid, 1852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 13:59:02,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1933 Valid, 10727 Invalid, 1852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1852 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 13:59:02,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19727 states. [2022-03-15 13:59:02,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19727 to 8246. [2022-03-15 13:59:02,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8246 states, 8245 states have (on average 2.6566403881140084) internal successors, (21904), 8245 states have internal predecessors, (21904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:59:02,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8246 states to 8246 states and 21904 transitions. [2022-03-15 13:59:02,634 INFO L78 Accepts]: Start accepts. Automaton has 8246 states and 21904 transitions. Word has length 153 [2022-03-15 13:59:02,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:59:02,634 INFO L470 AbstractCegarLoop]: Abstraction has 8246 states and 21904 transitions. [2022-03-15 13:59:02,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:59:02,634 INFO L276 IsEmpty]: Start isEmpty. Operand 8246 states and 21904 transitions. [2022-03-15 13:59:02,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:59:02,642 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:59:02,642 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:59:02,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable589 [2022-03-15 13:59:02,642 INFO L402 AbstractCegarLoop]: === Iteration 591 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:59:02,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:59:02,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1387274738, now seen corresponding path program 37 times [2022-03-15 13:59:02,643 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:59:02,643 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121581942] [2022-03-15 13:59:02,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:59:02,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:59:02,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:59:03,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:59:03,086 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:59:03,086 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121581942] [2022-03-15 13:59:03,086 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121581942] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:59:03,086 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:59:03,087 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:59:03,087 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231859193] [2022-03-15 13:59:03,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:59:03,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:59:03,087 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:59:03,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:59:03,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:59:03,087 INFO L87 Difference]: Start difference. First operand 8246 states and 21904 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:59:06,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:59:06,657 INFO L93 Difference]: Finished difference Result 21210 states and 56290 transitions. [2022-03-15 13:59:06,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-15 13:59:06,657 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:59:06,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:59:06,683 INFO L225 Difference]: With dead ends: 21210 [2022-03-15 13:59:06,684 INFO L226 Difference]: Without dead ends: 20719 [2022-03-15 13:59:06,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1239, Invalid=4017, Unknown=0, NotChecked=0, Total=5256 [2022-03-15 13:59:06,684 INFO L933 BasicCegarLoop]: 562 mSDtfsCounter, 1434 mSDsluCounter, 11994 mSDsCounter, 0 mSdLazyCounter, 2359 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1434 SdHoareTripleChecker+Valid, 12286 SdHoareTripleChecker+Invalid, 2359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 13:59:06,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1434 Valid, 12286 Invalid, 2359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2359 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 13:59:06,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20719 states. [2022-03-15 13:59:06,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20719 to 8294. [2022-03-15 13:59:06,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8294 states, 8293 states have (on average 2.6566984203545156) internal successors, (22032), 8293 states have internal predecessors, (22032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:59:06,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8294 states to 8294 states and 22032 transitions. [2022-03-15 13:59:06,853 INFO L78 Accepts]: Start accepts. Automaton has 8294 states and 22032 transitions. Word has length 153 [2022-03-15 13:59:06,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:59:06,853 INFO L470 AbstractCegarLoop]: Abstraction has 8294 states and 22032 transitions. [2022-03-15 13:59:06,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:59:06,853 INFO L276 IsEmpty]: Start isEmpty. Operand 8294 states and 22032 transitions. [2022-03-15 13:59:06,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:59:06,863 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:59:06,863 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:59:06,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable590 [2022-03-15 13:59:06,863 INFO L402 AbstractCegarLoop]: === Iteration 592 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:59:06,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:59:06,863 INFO L85 PathProgramCache]: Analyzing trace with hash 240248380, now seen corresponding path program 38 times [2022-03-15 13:59:06,863 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:59:06,863 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002063680] [2022-03-15 13:59:06,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:59:06,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:59:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:59:07,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:59:07,346 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:59:07,346 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002063680] [2022-03-15 13:59:07,346 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002063680] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:59:07,346 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:59:07,346 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:59:07,346 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778365010] [2022-03-15 13:59:07,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:59:07,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:59:07,347 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:59:07,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:59:07,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=805, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:59:07,347 INFO L87 Difference]: Start difference. First operand 8294 states and 22032 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:59:11,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:59:11,069 INFO L93 Difference]: Finished difference Result 21188 states and 56234 transitions. [2022-03-15 13:59:11,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-15 13:59:11,070 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:59:11,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:59:11,100 INFO L225 Difference]: With dead ends: 21188 [2022-03-15 13:59:11,100 INFO L226 Difference]: Without dead ends: 20696 [2022-03-15 13:59:11,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 736 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1285, Invalid=4567, Unknown=0, NotChecked=0, Total=5852 [2022-03-15 13:59:11,101 INFO L933 BasicCegarLoop]: 567 mSDtfsCounter, 1468 mSDsluCounter, 11505 mSDsCounter, 0 mSdLazyCounter, 2264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1468 SdHoareTripleChecker+Valid, 11829 SdHoareTripleChecker+Invalid, 2264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 13:59:11,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1468 Valid, 11829 Invalid, 2264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2264 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 13:59:11,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20696 states. [2022-03-15 13:59:11,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20696 to 8290. [2022-03-15 13:59:11,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8290 states, 8289 states have (on average 2.656653396067077) internal successors, (22021), 8289 states have internal predecessors, (22021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:59:11,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8290 states to 8290 states and 22021 transitions. [2022-03-15 13:59:11,281 INFO L78 Accepts]: Start accepts. Automaton has 8290 states and 22021 transitions. Word has length 153 [2022-03-15 13:59:11,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:59:11,281 INFO L470 AbstractCegarLoop]: Abstraction has 8290 states and 22021 transitions. [2022-03-15 13:59:11,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:59:11,281 INFO L276 IsEmpty]: Start isEmpty. Operand 8290 states and 22021 transitions. [2022-03-15 13:59:11,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:59:11,290 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:59:11,290 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:59:11,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable591 [2022-03-15 13:59:11,291 INFO L402 AbstractCegarLoop]: === Iteration 593 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:59:11,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:59:11,291 INFO L85 PathProgramCache]: Analyzing trace with hash -880808960, now seen corresponding path program 39 times [2022-03-15 13:59:11,291 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:59:11,291 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085631704] [2022-03-15 13:59:11,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:59:11,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:59:11,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:59:11,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:59:11,764 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:59:11,764 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085631704] [2022-03-15 13:59:11,764 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085631704] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:59:11,764 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:59:11,764 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:59:11,764 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430362905] [2022-03-15 13:59:11,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:59:11,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:59:11,764 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:59:11,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:59:11,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=805, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:59:11,764 INFO L87 Difference]: Start difference. First operand 8290 states and 22021 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:59:16,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:59:16,206 INFO L93 Difference]: Finished difference Result 21224 states and 56329 transitions. [2022-03-15 13:59:16,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-15 13:59:16,206 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:59:16,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:59:16,234 INFO L225 Difference]: With dead ends: 21224 [2022-03-15 13:59:16,234 INFO L226 Difference]: Without dead ends: 20692 [2022-03-15 13:59:16,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1197 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1640, Invalid=5842, Unknown=0, NotChecked=0, Total=7482 [2022-03-15 13:59:16,235 INFO L933 BasicCegarLoop]: 576 mSDtfsCounter, 1534 mSDsluCounter, 12244 mSDsCounter, 0 mSdLazyCounter, 2350 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1534 SdHoareTripleChecker+Valid, 12561 SdHoareTripleChecker+Invalid, 2350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 13:59:16,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1534 Valid, 12561 Invalid, 2350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2350 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 13:59:16,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20692 states. [2022-03-15 13:59:16,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20692 to 8286. [2022-03-15 13:59:16,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8286 states, 8285 states have (on average 2.656608328304164) internal successors, (22010), 8285 states have internal predecessors, (22010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:59:16,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8286 states to 8286 states and 22010 transitions. [2022-03-15 13:59:16,413 INFO L78 Accepts]: Start accepts. Automaton has 8286 states and 22010 transitions. Word has length 153 [2022-03-15 13:59:16,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:59:16,413 INFO L470 AbstractCegarLoop]: Abstraction has 8286 states and 22010 transitions. [2022-03-15 13:59:16,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:59:16,413 INFO L276 IsEmpty]: Start isEmpty. Operand 8286 states and 22010 transitions. [2022-03-15 13:59:16,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:59:16,423 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:59:16,423 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:59:16,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable592 [2022-03-15 13:59:16,423 INFO L402 AbstractCegarLoop]: === Iteration 594 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:59:16,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:59:16,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1405944496, now seen corresponding path program 40 times [2022-03-15 13:59:16,423 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:59:16,423 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865730023] [2022-03-15 13:59:16,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:59:16,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:59:16,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:59:16,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:59:16,881 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:59:16,881 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865730023] [2022-03-15 13:59:16,881 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865730023] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:59:16,881 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:59:16,881 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:59:16,881 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441538348] [2022-03-15 13:59:16,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:59:16,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:59:16,881 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:59:16,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:59:16,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:59:16,881 INFO L87 Difference]: Start difference. First operand 8286 states and 22010 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:59:21,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:59:21,942 INFO L93 Difference]: Finished difference Result 21260 states and 56424 transitions. [2022-03-15 13:59:21,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-03-15 13:59:21,942 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:59:21,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:59:21,972 INFO L225 Difference]: With dead ends: 21260 [2022-03-15 13:59:21,972 INFO L226 Difference]: Without dead ends: 20688 [2022-03-15 13:59:21,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1754 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=2066, Invalid=7246, Unknown=0, NotChecked=0, Total=9312 [2022-03-15 13:59:21,973 INFO L933 BasicCegarLoop]: 585 mSDtfsCounter, 1592 mSDsluCounter, 12405 mSDsCounter, 0 mSdLazyCounter, 2341 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1592 SdHoareTripleChecker+Valid, 12729 SdHoareTripleChecker+Invalid, 2341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 13:59:21,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1592 Valid, 12729 Invalid, 2341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2341 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 13:59:22,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20688 states. [2022-03-15 13:59:22,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20688 to 8282. [2022-03-15 13:59:22,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8282 states, 8281 states have (on average 2.6565632170027773) internal successors, (21999), 8281 states have internal predecessors, (21999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:59:22,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8282 states to 8282 states and 21999 transitions. [2022-03-15 13:59:22,171 INFO L78 Accepts]: Start accepts. Automaton has 8282 states and 21999 transitions. Word has length 153 [2022-03-15 13:59:22,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:59:22,171 INFO L470 AbstractCegarLoop]: Abstraction has 8282 states and 21999 transitions. [2022-03-15 13:59:22,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:59:22,171 INFO L276 IsEmpty]: Start isEmpty. Operand 8282 states and 21999 transitions. [2022-03-15 13:59:22,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:59:22,180 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:59:22,180 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:59:22,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable593 [2022-03-15 13:59:22,180 INFO L402 AbstractCegarLoop]: === Iteration 595 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:59:22,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:59:22,181 INFO L85 PathProgramCache]: Analyzing trace with hash -753651230, now seen corresponding path program 41 times [2022-03-15 13:59:22,181 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:59:22,181 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638842548] [2022-03-15 13:59:22,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:59:22,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:59:22,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:59:22,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:59:22,631 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:59:22,631 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638842548] [2022-03-15 13:59:22,631 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638842548] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:59:22,631 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:59:22,631 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:59:22,631 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047276237] [2022-03-15 13:59:22,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:59:22,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:59:22,632 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:59:22,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:59:22,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:59:22,632 INFO L87 Difference]: Start difference. First operand 8282 states and 21999 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:59:28,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:59:28,520 INFO L93 Difference]: Finished difference Result 21296 states and 56519 transitions. [2022-03-15 13:59:28,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-15 13:59:28,521 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:59:28,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:59:28,551 INFO L225 Difference]: With dead ends: 21296 [2022-03-15 13:59:28,551 INFO L226 Difference]: Without dead ends: 20684 [2022-03-15 13:59:28,553 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2402 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=2561, Invalid=8781, Unknown=0, NotChecked=0, Total=11342 [2022-03-15 13:59:28,553 INFO L933 BasicCegarLoop]: 594 mSDtfsCounter, 1687 mSDsluCounter, 11954 mSDsCounter, 0 mSdLazyCounter, 2234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1687 SdHoareTripleChecker+Valid, 12299 SdHoareTripleChecker+Invalid, 2234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 13:59:28,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1687 Valid, 12299 Invalid, 2234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2234 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 13:59:28,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20684 states. [2022-03-15 13:59:28,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20684 to 8278. [2022-03-15 13:59:28,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8278 states, 8277 states have (on average 2.656518062099795) internal successors, (21988), 8277 states have internal predecessors, (21988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:59:28,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8278 states to 8278 states and 21988 transitions. [2022-03-15 13:59:28,726 INFO L78 Accepts]: Start accepts. Automaton has 8278 states and 21988 transitions. Word has length 153 [2022-03-15 13:59:28,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:59:28,726 INFO L470 AbstractCegarLoop]: Abstraction has 8278 states and 21988 transitions. [2022-03-15 13:59:28,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:59:28,727 INFO L276 IsEmpty]: Start isEmpty. Operand 8278 states and 21988 transitions. [2022-03-15 13:59:28,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:59:28,736 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:59:28,736 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:59:28,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable594 [2022-03-15 13:59:28,736 INFO L402 AbstractCegarLoop]: === Iteration 596 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:59:28,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:59:28,736 INFO L85 PathProgramCache]: Analyzing trace with hash 456033014, now seen corresponding path program 42 times [2022-03-15 13:59:28,736 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:59:28,736 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829888789] [2022-03-15 13:59:28,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:59:28,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:59:28,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:59:29,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:59:29,210 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:59:29,210 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829888789] [2022-03-15 13:59:29,210 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829888789] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:59:29,210 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:59:29,210 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:59:29,210 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004352561] [2022-03-15 13:59:29,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:59:29,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:59:29,210 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:59:29,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:59:29,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:59:29,211 INFO L87 Difference]: Start difference. First operand 8278 states and 21988 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:59:35,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:59:35,757 INFO L93 Difference]: Finished difference Result 21756 states and 57728 transitions. [2022-03-15 13:59:35,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-03-15 13:59:35,757 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:59:35,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:59:35,784 INFO L225 Difference]: With dead ends: 21756 [2022-03-15 13:59:35,784 INFO L226 Difference]: Without dead ends: 21016 [2022-03-15 13:59:35,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3144 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=3085, Invalid=10255, Unknown=0, NotChecked=0, Total=13340 [2022-03-15 13:59:35,786 INFO L933 BasicCegarLoop]: 601 mSDtfsCounter, 1858 mSDsluCounter, 12045 mSDsCounter, 0 mSdLazyCounter, 2238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1858 SdHoareTripleChecker+Valid, 12395 SdHoareTripleChecker+Invalid, 2238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 13:59:35,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1858 Valid, 12395 Invalid, 2238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2238 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 13:59:35,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21016 states. [2022-03-15 13:59:35,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21016 to 8266. [2022-03-15 13:59:35,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8266 states, 8265 states have (on average 2.655414398064126) internal successors, (21947), 8265 states have internal predecessors, (21947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:59:35,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8266 states to 8266 states and 21947 transitions. [2022-03-15 13:59:35,953 INFO L78 Accepts]: Start accepts. Automaton has 8266 states and 21947 transitions. Word has length 153 [2022-03-15 13:59:35,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:59:35,953 INFO L470 AbstractCegarLoop]: Abstraction has 8266 states and 21947 transitions. [2022-03-15 13:59:35,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:59:35,953 INFO L276 IsEmpty]: Start isEmpty. Operand 8266 states and 21947 transitions. [2022-03-15 13:59:35,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:59:35,962 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:59:35,962 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:59:35,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable595 [2022-03-15 13:59:35,962 INFO L402 AbstractCegarLoop]: === Iteration 597 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:59:35,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:59:35,962 INFO L85 PathProgramCache]: Analyzing trace with hash -913347950, now seen corresponding path program 43 times [2022-03-15 13:59:35,962 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:59:35,962 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019994120] [2022-03-15 13:59:35,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:59:35,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:59:35,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:59:36,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:59:36,439 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:59:36,439 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019994120] [2022-03-15 13:59:36,440 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019994120] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:59:36,440 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:59:36,440 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:59:36,440 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911747647] [2022-03-15 13:59:36,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:59:36,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:59:36,440 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:59:36,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:59:36,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:59:36,440 INFO L87 Difference]: Start difference. First operand 8266 states and 21947 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:59:40,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:59:40,214 INFO L93 Difference]: Finished difference Result 21138 states and 56080 transitions. [2022-03-15 13:59:40,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-15 13:59:40,214 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:59:40,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:59:40,243 INFO L225 Difference]: With dead ends: 21138 [2022-03-15 13:59:40,243 INFO L226 Difference]: Without dead ends: 20647 [2022-03-15 13:59:40,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 677 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1313, Invalid=4237, Unknown=0, NotChecked=0, Total=5550 [2022-03-15 13:59:40,243 INFO L933 BasicCegarLoop]: 565 mSDtfsCounter, 1435 mSDsluCounter, 11445 mSDsCounter, 0 mSdLazyCounter, 2243 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1435 SdHoareTripleChecker+Valid, 11755 SdHoareTripleChecker+Invalid, 2243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 13:59:40,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1435 Valid, 11755 Invalid, 2243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2243 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 13:59:40,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20647 states. [2022-03-15 13:59:40,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20647 to 8286. [2022-03-15 13:59:40,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8286 states, 8285 states have (on average 2.6551599275799638) internal successors, (21998), 8285 states have internal predecessors, (21998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:59:40,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8286 states to 8286 states and 21998 transitions. [2022-03-15 13:59:40,399 INFO L78 Accepts]: Start accepts. Automaton has 8286 states and 21998 transitions. Word has length 153 [2022-03-15 13:59:40,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:59:40,399 INFO L470 AbstractCegarLoop]: Abstraction has 8286 states and 21998 transitions. [2022-03-15 13:59:40,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:59:40,399 INFO L276 IsEmpty]: Start isEmpty. Operand 8286 states and 21998 transitions. [2022-03-15 13:59:40,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:59:40,409 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:59:40,409 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:59:40,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable596 [2022-03-15 13:59:40,409 INFO L402 AbstractCegarLoop]: === Iteration 598 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:59:40,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:59:40,409 INFO L85 PathProgramCache]: Analyzing trace with hash 714175168, now seen corresponding path program 44 times [2022-03-15 13:59:40,409 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:59:40,409 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415255549] [2022-03-15 13:59:40,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:59:40,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:59:40,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:59:40,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:59:40,879 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:59:40,879 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415255549] [2022-03-15 13:59:40,879 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415255549] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:59:40,879 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:59:40,879 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:59:40,879 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745452630] [2022-03-15 13:59:40,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:59:40,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:59:40,879 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:59:40,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:59:40,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=805, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:59:40,879 INFO L87 Difference]: Start difference. First operand 8286 states and 21998 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:59:44,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:59:44,787 INFO L93 Difference]: Finished difference Result 21104 states and 55991 transitions. [2022-03-15 13:59:44,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-15 13:59:44,788 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:59:44,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:59:44,819 INFO L225 Difference]: With dead ends: 21104 [2022-03-15 13:59:44,819 INFO L226 Difference]: Without dead ends: 20612 [2022-03-15 13:59:44,820 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 732 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1295, Invalid=4557, Unknown=0, NotChecked=0, Total=5852 [2022-03-15 13:59:44,820 INFO L933 BasicCegarLoop]: 567 mSDtfsCounter, 1432 mSDsluCounter, 12610 mSDsCounter, 0 mSdLazyCounter, 2433 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1432 SdHoareTripleChecker+Valid, 12906 SdHoareTripleChecker+Invalid, 2433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 13:59:44,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1432 Valid, 12906 Invalid, 2433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2433 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 13:59:44,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20612 states. [2022-03-15 13:59:44,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20612 to 8282. [2022-03-15 13:59:44,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8282 states, 8281 states have (on average 2.655114116652578) internal successors, (21987), 8281 states have internal predecessors, (21987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:59:44,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8282 states to 8282 states and 21987 transitions. [2022-03-15 13:59:44,992 INFO L78 Accepts]: Start accepts. Automaton has 8282 states and 21987 transitions. Word has length 153 [2022-03-15 13:59:44,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:59:44,992 INFO L470 AbstractCegarLoop]: Abstraction has 8282 states and 21987 transitions. [2022-03-15 13:59:44,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:59:44,992 INFO L276 IsEmpty]: Start isEmpty. Operand 8282 states and 21987 transitions. [2022-03-15 13:59:45,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:59:45,002 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:59:45,002 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:59:45,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable597 [2022-03-15 13:59:45,002 INFO L402 AbstractCegarLoop]: === Iteration 599 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:59:45,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:59:45,002 INFO L85 PathProgramCache]: Analyzing trace with hash -406882172, now seen corresponding path program 45 times [2022-03-15 13:59:45,002 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:59:45,002 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922212510] [2022-03-15 13:59:45,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:59:45,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:59:45,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:59:45,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:59:45,563 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:59:45,563 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922212510] [2022-03-15 13:59:45,563 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922212510] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:59:45,563 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:59:45,563 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:59:45,563 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531911710] [2022-03-15 13:59:45,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:59:45,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:59:45,563 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:59:45,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:59:45,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:59:45,564 INFO L87 Difference]: Start difference. First operand 8282 states and 21987 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:59:49,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:59:49,910 INFO L93 Difference]: Finished difference Result 21140 states and 56086 transitions. [2022-03-15 13:59:49,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-15 13:59:49,911 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:59:49,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:59:49,940 INFO L225 Difference]: With dead ends: 21140 [2022-03-15 13:59:49,940 INFO L226 Difference]: Without dead ends: 20608 [2022-03-15 13:59:49,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1248 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1663, Invalid=5819, Unknown=0, NotChecked=0, Total=7482 [2022-03-15 13:59:49,941 INFO L933 BasicCegarLoop]: 576 mSDtfsCounter, 1515 mSDsluCounter, 11129 mSDsCounter, 0 mSdLazyCounter, 2141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 11470 SdHoareTripleChecker+Invalid, 2141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 13:59:49,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1515 Valid, 11470 Invalid, 2141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2141 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 13:59:49,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20608 states. [2022-03-15 13:59:50,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20608 to 8278. [2022-03-15 13:59:50,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8278 states, 8277 states have (on average 2.655068261447384) internal successors, (21976), 8277 states have internal predecessors, (21976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:59:50,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8278 states to 8278 states and 21976 transitions. [2022-03-15 13:59:50,116 INFO L78 Accepts]: Start accepts. Automaton has 8278 states and 21976 transitions. Word has length 153 [2022-03-15 13:59:50,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:59:50,116 INFO L470 AbstractCegarLoop]: Abstraction has 8278 states and 21976 transitions. [2022-03-15 13:59:50,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:59:50,116 INFO L276 IsEmpty]: Start isEmpty. Operand 8278 states and 21976 transitions. [2022-03-15 13:59:50,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:59:50,125 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:59:50,125 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:59:50,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable598 [2022-03-15 13:59:50,125 INFO L402 AbstractCegarLoop]: === Iteration 600 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:59:50,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:59:50,126 INFO L85 PathProgramCache]: Analyzing trace with hash -932017708, now seen corresponding path program 46 times [2022-03-15 13:59:50,126 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:59:50,126 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651118688] [2022-03-15 13:59:50,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:59:50,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:59:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:59:50,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:59:50,584 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:59:50,584 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651118688] [2022-03-15 13:59:50,585 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651118688] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:59:50,585 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:59:50,585 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:59:50,585 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719325114] [2022-03-15 13:59:50,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:59:50,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:59:50,585 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:59:50,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:59:50,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:59:50,585 INFO L87 Difference]: Start difference. First operand 8278 states and 21976 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:59:55,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:59:55,562 INFO L93 Difference]: Finished difference Result 21368 states and 56685 transitions. [2022-03-15 13:59:55,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-15 13:59:55,562 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 13:59:55,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:59:55,592 INFO L225 Difference]: With dead ends: 21368 [2022-03-15 13:59:55,592 INFO L226 Difference]: Without dead ends: 20796 [2022-03-15 13:59:55,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1758 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=2053, Invalid=7067, Unknown=0, NotChecked=0, Total=9120 [2022-03-15 13:59:55,593 INFO L933 BasicCegarLoop]: 582 mSDtfsCounter, 1615 mSDsluCounter, 11786 mSDsCounter, 0 mSdLazyCounter, 2220 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1615 SdHoareTripleChecker+Valid, 12119 SdHoareTripleChecker+Invalid, 2220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 13:59:55,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1615 Valid, 12119 Invalid, 2220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2220 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 13:59:55,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20796 states. [2022-03-15 13:59:55,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20796 to 8274. [2022-03-15 13:59:55,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8274 states, 8273 states have (on average 2.655022361900157) internal successors, (21965), 8273 states have internal predecessors, (21965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:59:55,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8274 states to 8274 states and 21965 transitions. [2022-03-15 13:59:55,752 INFO L78 Accepts]: Start accepts. Automaton has 8274 states and 21965 transitions. Word has length 153 [2022-03-15 13:59:55,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:59:55,752 INFO L470 AbstractCegarLoop]: Abstraction has 8274 states and 21965 transitions. [2022-03-15 13:59:55,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:59:55,752 INFO L276 IsEmpty]: Start isEmpty. Operand 8274 states and 21965 transitions. [2022-03-15 13:59:55,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 13:59:55,760 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:59:55,760 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:59:55,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable599 [2022-03-15 13:59:55,760 INFO L402 AbstractCegarLoop]: === Iteration 601 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:59:55,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:59:55,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1122331112, now seen corresponding path program 47 times [2022-03-15 13:59:55,761 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:59:55,761 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418652110] [2022-03-15 13:59:55,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:59:55,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:59:55,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:59:56,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:59:56,224 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:59:56,224 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418652110] [2022-03-15 13:59:56,224 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418652110] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:59:56,224 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:59:56,224 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 13:59:56,225 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581724046] [2022-03-15 13:59:56,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:59:56,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 13:59:56,225 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:59:56,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 13:59:56,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-03-15 13:59:56,225 INFO L87 Difference]: Start difference. First operand 8274 states and 21965 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:00:00,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:00:00,028 INFO L93 Difference]: Finished difference Result 21114 states and 56010 transitions. [2022-03-15 14:00:00,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-15 14:00:00,029 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 14:00:00,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:00:00,057 INFO L225 Difference]: With dead ends: 21114 [2022-03-15 14:00:00,057 INFO L226 Difference]: Without dead ends: 20623 [2022-03-15 14:00:00,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 707 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1353, Invalid=4347, Unknown=0, NotChecked=0, Total=5700 [2022-03-15 14:00:00,058 INFO L933 BasicCegarLoop]: 567 mSDtfsCounter, 1439 mSDsluCounter, 10952 mSDsCounter, 0 mSdLazyCounter, 2143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1439 SdHoareTripleChecker+Valid, 11275 SdHoareTripleChecker+Invalid, 2143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 14:00:00,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1439 Valid, 11275 Invalid, 2143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2143 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 14:00:00,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20623 states. [2022-03-15 14:00:00,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20623 to 8286. [2022-03-15 14:00:00,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8286 states, 8285 states have (on average 2.6546771273385636) internal successors, (21994), 8285 states have internal predecessors, (21994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:00:00,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8286 states to 8286 states and 21994 transitions. [2022-03-15 14:00:00,234 INFO L78 Accepts]: Start accepts. Automaton has 8286 states and 21994 transitions. Word has length 153 [2022-03-15 14:00:00,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:00:00,234 INFO L470 AbstractCegarLoop]: Abstraction has 8286 states and 21994 transitions. [2022-03-15 14:00:00,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:00:00,234 INFO L276 IsEmpty]: Start isEmpty. Operand 8286 states and 21994 transitions. [2022-03-15 14:00:00,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 14:00:00,243 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:00:00,243 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:00:00,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable600 [2022-03-15 14:00:00,243 INFO L402 AbstractCegarLoop]: === Iteration 602 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:00:00,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:00:00,243 INFO L85 PathProgramCache]: Analyzing trace with hash 505192006, now seen corresponding path program 48 times [2022-03-15 14:00:00,243 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:00:00,243 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434732203] [2022-03-15 14:00:00,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:00:00,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:00:00,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:00:00,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:00:00,726 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:00:00,726 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434732203] [2022-03-15 14:00:00,726 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434732203] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:00:00,726 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:00:00,726 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 14:00:00,726 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653009914] [2022-03-15 14:00:00,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:00:00,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 14:00:00,726 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:00:00,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 14:00:00,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-03-15 14:00:00,727 INFO L87 Difference]: Start difference. First operand 8286 states and 21994 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:00:04,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:00:04,568 INFO L93 Difference]: Finished difference Result 21072 states and 55899 transitions. [2022-03-15 14:00:04,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-15 14:00:04,569 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 14:00:04,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:00:04,600 INFO L225 Difference]: With dead ends: 21072 [2022-03-15 14:00:04,600 INFO L226 Difference]: Without dead ends: 20580 [2022-03-15 14:00:04,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 778 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1303, Invalid=4549, Unknown=0, NotChecked=0, Total=5852 [2022-03-15 14:00:04,601 INFO L933 BasicCegarLoop]: 568 mSDtfsCounter, 1436 mSDsluCounter, 10945 mSDsCounter, 0 mSdLazyCounter, 2145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1436 SdHoareTripleChecker+Valid, 11282 SdHoareTripleChecker+Invalid, 2145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 14:00:04,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1436 Valid, 11282 Invalid, 2145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2145 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 14:00:04,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20580 states. [2022-03-15 14:00:04,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20580 to 8282. [2022-03-15 14:00:04,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8282 states, 8281 states have (on average 2.6546310832025117) internal successors, (21983), 8281 states have internal predecessors, (21983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:00:04,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8282 states to 8282 states and 21983 transitions. [2022-03-15 14:00:04,788 INFO L78 Accepts]: Start accepts. Automaton has 8282 states and 21983 transitions. Word has length 153 [2022-03-15 14:00:04,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:00:04,789 INFO L470 AbstractCegarLoop]: Abstraction has 8282 states and 21983 transitions. [2022-03-15 14:00:04,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:00:04,789 INFO L276 IsEmpty]: Start isEmpty. Operand 8282 states and 21983 transitions. [2022-03-15 14:00:04,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 14:00:04,798 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:00:04,798 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:00:04,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable601 [2022-03-15 14:00:04,799 INFO L402 AbstractCegarLoop]: === Iteration 603 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:00:04,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:00:04,799 INFO L85 PathProgramCache]: Analyzing trace with hash -615865334, now seen corresponding path program 49 times [2022-03-15 14:00:04,799 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:00:04,799 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968632866] [2022-03-15 14:00:04,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:00:04,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:00:04,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:00:05,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:00:05,296 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:00:05,296 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968632866] [2022-03-15 14:00:05,296 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968632866] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:00:05,297 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:00:05,297 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 14:00:05,297 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337060239] [2022-03-15 14:00:05,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:00:05,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 14:00:05,297 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:00:05,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 14:00:05,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-15 14:00:05,297 INFO L87 Difference]: Start difference. First operand 8282 states and 21983 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:00:10,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:00:10,033 INFO L93 Difference]: Finished difference Result 21240 states and 56341 transitions. [2022-03-15 14:00:10,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-15 14:00:10,034 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 14:00:10,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:00:10,064 INFO L225 Difference]: With dead ends: 21240 [2022-03-15 14:00:10,064 INFO L226 Difference]: Without dead ends: 20708 [2022-03-15 14:00:10,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1137 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1625, Invalid=5685, Unknown=0, NotChecked=0, Total=7310 [2022-03-15 14:00:10,065 INFO L933 BasicCegarLoop]: 574 mSDtfsCounter, 1547 mSDsluCounter, 11613 mSDsCounter, 0 mSdLazyCounter, 2227 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 11942 SdHoareTripleChecker+Invalid, 2227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 14:00:10,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1547 Valid, 11942 Invalid, 2227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2227 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 14:00:10,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20708 states. [2022-03-15 14:00:10,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20708 to 8278. [2022-03-15 14:00:10,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8278 states, 8277 states have (on average 2.6545849945632476) internal successors, (21972), 8277 states have internal predecessors, (21972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:00:10,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8278 states to 8278 states and 21972 transitions. [2022-03-15 14:00:10,233 INFO L78 Accepts]: Start accepts. Automaton has 8278 states and 21972 transitions. Word has length 153 [2022-03-15 14:00:10,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:00:10,233 INFO L470 AbstractCegarLoop]: Abstraction has 8278 states and 21972 transitions. [2022-03-15 14:00:10,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:00:10,233 INFO L276 IsEmpty]: Start isEmpty. Operand 8278 states and 21972 transitions. [2022-03-15 14:00:10,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 14:00:10,242 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:00:10,242 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:00:10,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable602 [2022-03-15 14:00:10,243 INFO L402 AbstractCegarLoop]: === Iteration 604 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:00:10,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:00:10,243 INFO L85 PathProgramCache]: Analyzing trace with hash -543235610, now seen corresponding path program 50 times [2022-03-15 14:00:10,243 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:00:10,243 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391467966] [2022-03-15 14:00:10,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:00:10,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:00:10,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:00:10,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:00:10,755 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:00:10,755 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391467966] [2022-03-15 14:00:10,755 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391467966] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:00:10,755 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:00:10,755 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 14:00:10,755 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041524101] [2022-03-15 14:00:10,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:00:10,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 14:00:10,755 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:00:10,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 14:00:10,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-03-15 14:00:10,756 INFO L87 Difference]: Start difference. First operand 8278 states and 21972 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:00:15,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:00:15,348 INFO L93 Difference]: Finished difference Result 21098 states and 55937 transitions. [2022-03-15 14:00:15,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-15 14:00:15,349 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 14:00:15,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:00:15,379 INFO L225 Difference]: With dead ends: 21098 [2022-03-15 14:00:15,380 INFO L226 Difference]: Without dead ends: 20564 [2022-03-15 14:00:15,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 960 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1637, Invalid=5005, Unknown=0, NotChecked=0, Total=6642 [2022-03-15 14:00:15,382 INFO L933 BasicCegarLoop]: 570 mSDtfsCounter, 1501 mSDsluCounter, 12069 mSDsCounter, 0 mSdLazyCounter, 2302 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1501 SdHoareTripleChecker+Valid, 12369 SdHoareTripleChecker+Invalid, 2302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 14:00:15,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1501 Valid, 12369 Invalid, 2302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2302 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 14:00:15,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20564 states. [2022-03-15 14:00:15,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20564 to 8282. [2022-03-15 14:00:15,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8282 states, 8281 states have (on average 2.6541480497524454) internal successors, (21979), 8281 states have internal predecessors, (21979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:00:15,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8282 states to 8282 states and 21979 transitions. [2022-03-15 14:00:15,578 INFO L78 Accepts]: Start accepts. Automaton has 8282 states and 21979 transitions. Word has length 153 [2022-03-15 14:00:15,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:00:15,578 INFO L470 AbstractCegarLoop]: Abstraction has 8282 states and 21979 transitions. [2022-03-15 14:00:15,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:00:15,579 INFO L276 IsEmpty]: Start isEmpty. Operand 8282 states and 21979 transitions. [2022-03-15 14:00:15,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 14:00:15,588 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:00:15,588 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:00:15,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable603 [2022-03-15 14:00:15,588 INFO L402 AbstractCegarLoop]: === Iteration 605 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:00:15,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:00:15,589 INFO L85 PathProgramCache]: Analyzing trace with hash -2101150960, now seen corresponding path program 51 times [2022-03-15 14:00:15,589 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:00:15,589 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59522947] [2022-03-15 14:00:15,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:00:15,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:00:15,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:00:16,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:00:16,041 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:00:16,042 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59522947] [2022-03-15 14:00:16,042 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59522947] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:00:16,042 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:00:16,042 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 14:00:16,042 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446238008] [2022-03-15 14:00:16,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:00:16,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 14:00:16,042 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:00:16,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 14:00:16,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-03-15 14:00:16,042 INFO L87 Difference]: Start difference. First operand 8282 states and 21979 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:00:19,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:00:19,961 INFO L93 Difference]: Finished difference Result 21046 states and 55815 transitions. [2022-03-15 14:00:19,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-15 14:00:19,961 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 14:00:19,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:00:19,992 INFO L225 Difference]: With dead ends: 21046 [2022-03-15 14:00:19,992 INFO L226 Difference]: Without dead ends: 20555 [2022-03-15 14:00:19,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 741 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1395, Invalid=4457, Unknown=0, NotChecked=0, Total=5852 [2022-03-15 14:00:19,993 INFO L933 BasicCegarLoop]: 570 mSDtfsCounter, 1455 mSDsluCounter, 11487 mSDsCounter, 0 mSdLazyCounter, 2226 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1455 SdHoareTripleChecker+Valid, 11802 SdHoareTripleChecker+Invalid, 2226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 14:00:19,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1455 Valid, 11802 Invalid, 2226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2226 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 14:00:20,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20555 states. [2022-03-15 14:00:20,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20555 to 8286. [2022-03-15 14:00:20,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8286 states, 8285 states have (on average 2.6537115268557634) internal successors, (21986), 8285 states have internal predecessors, (21986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:00:20,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8286 states to 8286 states and 21986 transitions. [2022-03-15 14:00:20,171 INFO L78 Accepts]: Start accepts. Automaton has 8286 states and 21986 transitions. Word has length 153 [2022-03-15 14:00:20,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:00:20,171 INFO L470 AbstractCegarLoop]: Abstraction has 8286 states and 21986 transitions. [2022-03-15 14:00:20,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:00:20,171 INFO L276 IsEmpty]: Start isEmpty. Operand 8286 states and 21986 transitions. [2022-03-15 14:00:20,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 14:00:20,180 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:00:20,180 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:00:20,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable604 [2022-03-15 14:00:20,180 INFO L402 AbstractCegarLoop]: === Iteration 606 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:00:20,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:00:20,180 INFO L85 PathProgramCache]: Analyzing trace with hash -473627842, now seen corresponding path program 52 times [2022-03-15 14:00:20,180 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:00:20,181 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272438036] [2022-03-15 14:00:20,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:00:20,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:00:20,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:00:20,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:00:20,656 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:00:20,656 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272438036] [2022-03-15 14:00:20,656 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272438036] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:00:20,657 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:00:20,657 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 14:00:20,657 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855459733] [2022-03-15 14:00:20,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:00:20,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 14:00:20,657 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:00:20,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 14:00:20,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-03-15 14:00:20,657 INFO L87 Difference]: Start difference. First operand 8286 states and 21986 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:00:24,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:00:24,395 INFO L93 Difference]: Finished difference Result 20996 states and 55682 transitions. [2022-03-15 14:00:24,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-15 14:00:24,395 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 14:00:24,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:00:24,427 INFO L225 Difference]: With dead ends: 20996 [2022-03-15 14:00:24,428 INFO L226 Difference]: Without dead ends: 20492 [2022-03-15 14:00:24,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 744 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1261, Invalid=4439, Unknown=0, NotChecked=0, Total=5700 [2022-03-15 14:00:24,429 INFO L933 BasicCegarLoop]: 572 mSDtfsCounter, 1426 mSDsluCounter, 10486 mSDsCounter, 0 mSdLazyCounter, 2038 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1426 SdHoareTripleChecker+Valid, 10837 SdHoareTripleChecker+Invalid, 2038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 14:00:24,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1426 Valid, 10837 Invalid, 2038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2038 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 14:00:24,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20492 states. [2022-03-15 14:00:24,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20492 to 8270. [2022-03-15 14:00:24,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8270 states, 8269 states have (on average 2.654976417946547) internal successors, (21954), 8269 states have internal predecessors, (21954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:00:24,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8270 states to 8270 states and 21954 transitions. [2022-03-15 14:00:24,631 INFO L78 Accepts]: Start accepts. Automaton has 8270 states and 21954 transitions. Word has length 153 [2022-03-15 14:00:24,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:00:24,631 INFO L470 AbstractCegarLoop]: Abstraction has 8270 states and 21954 transitions. [2022-03-15 14:00:24,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:00:24,632 INFO L276 IsEmpty]: Start isEmpty. Operand 8270 states and 21954 transitions. [2022-03-15 14:00:24,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 14:00:24,641 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:00:24,641 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:00:24,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable605 [2022-03-15 14:00:24,641 INFO L402 AbstractCegarLoop]: === Iteration 607 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:00:24,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:00:24,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1733912526, now seen corresponding path program 53 times [2022-03-15 14:00:24,642 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:00:24,642 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64467173] [2022-03-15 14:00:24,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:00:24,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:00:24,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:00:25,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:00:25,116 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:00:25,116 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64467173] [2022-03-15 14:00:25,116 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64467173] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:00:25,116 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:00:25,116 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 14:00:25,116 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095243865] [2022-03-15 14:00:25,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:00:25,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 14:00:25,116 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:00:25,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 14:00:25,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-03-15 14:00:25,117 INFO L87 Difference]: Start difference. First operand 8270 states and 21954 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:00:28,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:00:28,825 INFO L93 Difference]: Finished difference Result 21058 states and 55856 transitions. [2022-03-15 14:00:28,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-15 14:00:28,826 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 14:00:28,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:00:28,855 INFO L225 Difference]: With dead ends: 21058 [2022-03-15 14:00:28,855 INFO L226 Difference]: Without dead ends: 20567 [2022-03-15 14:00:28,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 643 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1275, Invalid=4127, Unknown=0, NotChecked=0, Total=5402 [2022-03-15 14:00:28,856 INFO L933 BasicCegarLoop]: 564 mSDtfsCounter, 1441 mSDsluCounter, 10915 mSDsCounter, 0 mSdLazyCounter, 2134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1441 SdHoareTripleChecker+Valid, 11237 SdHoareTripleChecker+Invalid, 2134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 14:00:28,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1441 Valid, 11237 Invalid, 2134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2134 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 14:00:28,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20567 states. [2022-03-15 14:00:29,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20567 to 8286. [2022-03-15 14:00:29,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8286 states, 8285 states have (on average 2.6546771273385636) internal successors, (21994), 8285 states have internal predecessors, (21994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:00:29,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8286 states to 8286 states and 21994 transitions. [2022-03-15 14:00:29,035 INFO L78 Accepts]: Start accepts. Automaton has 8286 states and 21994 transitions. Word has length 153 [2022-03-15 14:00:29,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:00:29,035 INFO L470 AbstractCegarLoop]: Abstraction has 8286 states and 21994 transitions. [2022-03-15 14:00:29,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:00:29,035 INFO L276 IsEmpty]: Start isEmpty. Operand 8286 states and 21994 transitions. [2022-03-15 14:00:29,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 14:00:29,044 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:00:29,044 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:00:29,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable606 [2022-03-15 14:00:29,044 INFO L402 AbstractCegarLoop]: === Iteration 608 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:00:29,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:00:29,045 INFO L85 PathProgramCache]: Analyzing trace with hash -106389408, now seen corresponding path program 54 times [2022-03-15 14:00:29,045 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:00:29,045 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040937726] [2022-03-15 14:00:29,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:00:29,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:00:29,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:00:29,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:00:29,533 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:00:29,533 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040937726] [2022-03-15 14:00:29,533 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040937726] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:00:29,533 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:00:29,533 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 14:00:29,533 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730839464] [2022-03-15 14:00:29,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:00:29,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 14:00:29,533 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:00:29,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 14:00:29,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-03-15 14:00:29,534 INFO L87 Difference]: Start difference. First operand 8286 states and 21994 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:00:33,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:00:33,269 INFO L93 Difference]: Finished difference Result 21036 states and 55800 transitions. [2022-03-15 14:00:33,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-15 14:00:33,269 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 14:00:33,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:00:33,299 INFO L225 Difference]: With dead ends: 21036 [2022-03-15 14:00:33,299 INFO L226 Difference]: Without dead ends: 20544 [2022-03-15 14:00:33,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 789 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1293, Invalid=4559, Unknown=0, NotChecked=0, Total=5852 [2022-03-15 14:00:33,300 INFO L933 BasicCegarLoop]: 569 mSDtfsCounter, 1453 mSDsluCounter, 10986 mSDsCounter, 0 mSdLazyCounter, 2136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1453 SdHoareTripleChecker+Valid, 11324 SdHoareTripleChecker+Invalid, 2136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 14:00:33,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1453 Valid, 11324 Invalid, 2136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2136 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 14:00:33,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20544 states. [2022-03-15 14:00:33,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20544 to 8282. [2022-03-15 14:00:33,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8282 states, 8281 states have (on average 2.6546310832025117) internal successors, (21983), 8281 states have internal predecessors, (21983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:00:33,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8282 states to 8282 states and 21983 transitions. [2022-03-15 14:00:33,501 INFO L78 Accepts]: Start accepts. Automaton has 8282 states and 21983 transitions. Word has length 153 [2022-03-15 14:00:33,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:00:33,502 INFO L470 AbstractCegarLoop]: Abstraction has 8282 states and 21983 transitions. [2022-03-15 14:00:33,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:00:33,502 INFO L276 IsEmpty]: Start isEmpty. Operand 8282 states and 21983 transitions. [2022-03-15 14:00:33,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 14:00:33,512 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:00:33,512 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:00:33,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable607 [2022-03-15 14:00:33,512 INFO L402 AbstractCegarLoop]: === Iteration 609 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:00:33,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:00:33,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1227446748, now seen corresponding path program 55 times [2022-03-15 14:00:33,513 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:00:33,513 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329229315] [2022-03-15 14:00:33,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:00:33,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:00:33,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:00:34,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:00:34,009 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:00:34,009 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329229315] [2022-03-15 14:00:34,009 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329229315] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:00:34,009 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:00:34,009 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 14:00:34,009 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998882815] [2022-03-15 14:00:34,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:00:34,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 14:00:34,009 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:00:34,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 14:00:34,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-15 14:00:34,009 INFO L87 Difference]: Start difference. First operand 8282 states and 21983 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:00:38,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:00:38,645 INFO L93 Difference]: Finished difference Result 21072 states and 55895 transitions. [2022-03-15 14:00:38,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-15 14:00:38,645 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 14:00:38,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:00:38,675 INFO L225 Difference]: With dead ends: 21072 [2022-03-15 14:00:38,675 INFO L226 Difference]: Without dead ends: 20540 [2022-03-15 14:00:38,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1193 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1651, Invalid=5831, Unknown=0, NotChecked=0, Total=7482 [2022-03-15 14:00:38,676 INFO L933 BasicCegarLoop]: 578 mSDtfsCounter, 1532 mSDsluCounter, 11688 mSDsCounter, 0 mSdLazyCounter, 2224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1532 SdHoareTripleChecker+Valid, 12021 SdHoareTripleChecker+Invalid, 2224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 14:00:38,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1532 Valid, 12021 Invalid, 2224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2224 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 14:00:38,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20540 states. [2022-03-15 14:00:38,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20540 to 8278. [2022-03-15 14:00:38,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8278 states, 8277 states have (on average 2.6545849945632476) internal successors, (21972), 8277 states have internal predecessors, (21972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:00:38,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8278 states to 8278 states and 21972 transitions. [2022-03-15 14:00:38,865 INFO L78 Accepts]: Start accepts. Automaton has 8278 states and 21972 transitions. Word has length 153 [2022-03-15 14:00:38,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:00:38,865 INFO L470 AbstractCegarLoop]: Abstraction has 8278 states and 21972 transitions. [2022-03-15 14:00:38,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:00:38,865 INFO L276 IsEmpty]: Start isEmpty. Operand 8278 states and 21972 transitions. [2022-03-15 14:00:38,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 14:00:38,876 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:00:38,876 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:00:38,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable608 [2022-03-15 14:00:38,876 INFO L402 AbstractCegarLoop]: === Iteration 610 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:00:38,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:00:38,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1752582284, now seen corresponding path program 56 times [2022-03-15 14:00:38,876 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:00:38,876 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085750635] [2022-03-15 14:00:38,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:00:38,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:00:38,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:00:39,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:00:39,357 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:00:39,357 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085750635] [2022-03-15 14:00:39,357 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085750635] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:00:39,358 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:00:39,358 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 14:00:39,358 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620765394] [2022-03-15 14:00:39,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:00:39,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 14:00:39,358 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:00:39,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 14:00:39,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-03-15 14:00:39,358 INFO L87 Difference]: Start difference. First operand 8278 states and 21972 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:00:44,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:00:44,550 INFO L93 Difference]: Finished difference Result 21108 states and 55990 transitions. [2022-03-15 14:00:44,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-03-15 14:00:44,551 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 14:00:44,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:00:44,579 INFO L225 Difference]: With dead ends: 21108 [2022-03-15 14:00:44,580 INFO L226 Difference]: Without dead ends: 20536 [2022-03-15 14:00:44,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1818 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=2083, Invalid=7229, Unknown=0, NotChecked=0, Total=9312 [2022-03-15 14:00:44,581 INFO L933 BasicCegarLoop]: 587 mSDtfsCounter, 1604 mSDsluCounter, 10754 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1604 SdHoareTripleChecker+Valid, 11116 SdHoareTripleChecker+Invalid, 2036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 14:00:44,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1604 Valid, 11116 Invalid, 2036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2036 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 14:00:44,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20536 states. [2022-03-15 14:00:44,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20536 to 8274. [2022-03-15 14:00:44,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8274 states, 8273 states have (on average 2.654538861356219) internal successors, (21961), 8273 states have internal predecessors, (21961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:00:44,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8274 states to 8274 states and 21961 transitions. [2022-03-15 14:00:44,754 INFO L78 Accepts]: Start accepts. Automaton has 8274 states and 21961 transitions. Word has length 153 [2022-03-15 14:00:44,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:00:44,755 INFO L470 AbstractCegarLoop]: Abstraction has 8274 states and 21961 transitions. [2022-03-15 14:00:44,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:00:44,755 INFO L276 IsEmpty]: Start isEmpty. Operand 8274 states and 21961 transitions. [2022-03-15 14:00:44,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 14:00:44,764 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:00:44,765 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:00:44,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable609 [2022-03-15 14:00:44,765 INFO L402 AbstractCegarLoop]: === Iteration 611 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:00:44,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:00:44,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1100289018, now seen corresponding path program 57 times [2022-03-15 14:00:44,765 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:00:44,765 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796586307] [2022-03-15 14:00:44,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:00:44,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:00:44,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:00:45,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:00:45,250 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:00:45,251 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796586307] [2022-03-15 14:00:45,251 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796586307] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:00:45,251 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:00:45,251 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 14:00:45,251 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719130268] [2022-03-15 14:00:45,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:00:45,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 14:00:45,251 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:00:45,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 14:00:45,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-03-15 14:00:45,251 INFO L87 Difference]: Start difference. First operand 8274 states and 21961 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:00:51,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:00:51,066 INFO L93 Difference]: Finished difference Result 21104 states and 55975 transitions. [2022-03-15 14:00:51,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-03-15 14:00:51,066 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 14:00:51,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:00:51,097 INFO L225 Difference]: With dead ends: 21104 [2022-03-15 14:00:51,098 INFO L226 Difference]: Without dead ends: 20476 [2022-03-15 14:00:51,099 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2413 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=2539, Invalid=8591, Unknown=0, NotChecked=0, Total=11130 [2022-03-15 14:00:51,099 INFO L933 BasicCegarLoop]: 593 mSDtfsCounter, 1666 mSDsluCounter, 11915 mSDsCounter, 0 mSdLazyCounter, 2200 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1666 SdHoareTripleChecker+Valid, 12259 SdHoareTripleChecker+Invalid, 2200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 14:00:51,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1666 Valid, 12259 Invalid, 2200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2200 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 14:00:51,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20476 states. [2022-03-15 14:00:51,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20476 to 8254. [2022-03-15 14:00:51,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8254 states, 8253 states have (on average 2.6562462134981217) internal successors, (21922), 8253 states have internal predecessors, (21922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:00:51,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8254 states to 8254 states and 21922 transitions. [2022-03-15 14:00:51,278 INFO L78 Accepts]: Start accepts. Automaton has 8254 states and 21922 transitions. Word has length 153 [2022-03-15 14:00:51,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:00:51,278 INFO L470 AbstractCegarLoop]: Abstraction has 8254 states and 21922 transitions. [2022-03-15 14:00:51,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:00:51,278 INFO L276 IsEmpty]: Start isEmpty. Operand 8254 states and 21922 transitions. [2022-03-15 14:00:51,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 14:00:51,312 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:00:51,312 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:00:51,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable610 [2022-03-15 14:00:51,312 INFO L402 AbstractCegarLoop]: === Iteration 612 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:00:51,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:00:51,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1378330606, now seen corresponding path program 58 times [2022-03-15 14:00:51,312 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:00:51,313 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490329279] [2022-03-15 14:00:51,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:00:51,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:00:51,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:00:51,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:00:51,793 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:00:51,793 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490329279] [2022-03-15 14:00:51,793 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490329279] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:00:51,793 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:00:51,793 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 14:00:51,793 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710877394] [2022-03-15 14:00:51,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:00:51,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 14:00:51,794 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:00:51,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 14:00:51,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-03-15 14:00:51,794 INFO L87 Difference]: Start difference. First operand 8254 states and 21922 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:00:55,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:00:55,449 INFO L93 Difference]: Finished difference Result 20842 states and 55274 transitions. [2022-03-15 14:00:55,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-15 14:00:55,449 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-15 14:00:55,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:00:55,478 INFO L225 Difference]: With dead ends: 20842 [2022-03-15 14:00:55,479 INFO L226 Difference]: Without dead ends: 20351 [2022-03-15 14:00:55,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 572 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1205, Invalid=3907, Unknown=0, NotChecked=0, Total=5112 [2022-03-15 14:00:55,480 INFO L933 BasicCegarLoop]: 561 mSDtfsCounter, 1436 mSDsluCounter, 11478 mSDsCounter, 0 mSdLazyCounter, 2213 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1436 SdHoareTripleChecker+Valid, 11782 SdHoareTripleChecker+Invalid, 2213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 14:00:55,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1436 Valid, 11782 Invalid, 2213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2213 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 14:00:55,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20351 states. [2022-03-15 14:00:55,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20351 to 8286. [2022-03-15 14:00:55,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8286 states, 8285 states have (on average 2.656125528062764) internal successors, (22006), 8285 states have internal predecessors, (22006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:00:55,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8286 states to 8286 states and 22006 transitions. [2022-03-15 14:00:55,653 INFO L78 Accepts]: Start accepts. Automaton has 8286 states and 22006 transitions. Word has length 153 [2022-03-15 14:00:55,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:00:55,653 INFO L470 AbstractCegarLoop]: Abstraction has 8286 states and 22006 transitions. [2022-03-15 14:00:55,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:00:55,653 INFO L276 IsEmpty]: Start isEmpty. Operand 8286 states and 22006 transitions. [2022-03-15 14:00:55,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 14:00:55,663 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:00:55,663 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:00:55,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable611 [2022-03-15 14:00:55,663 INFO L402 AbstractCegarLoop]: === Iteration 613 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:00:55,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:00:55,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1289113572, now seen corresponding path program 59 times [2022-03-15 14:00:55,663 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:00:55,664 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274235726] [2022-03-15 14:00:55,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:00:55,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:00:55,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:00:56,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:00:56,137 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:00:56,137 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274235726] [2022-03-15 14:00:56,137 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274235726] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:00:56,138 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:00:56,138 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-15 14:00:56,138 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130092433] [2022-03-15 14:00:56,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:00:56,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-15 14:00:56,138 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:00:56,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-15 14:00:56,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-15 14:00:56,138 INFO L87 Difference]: Start difference. First operand 8286 states and 22006 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2022-03-15 14:00:57,726 WARN L244 SmtUtils]: Removed 18 from assertion stack [2022-03-15 14:00:57,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 14:00:57,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=370, Invalid=1700, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 14:00:57,727 INFO L933 BasicCegarLoop]: 453 mSDtfsCounter, 728 mSDsluCounter, 9516 mSDsCounter, 0 mSdLazyCounter, 1789 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 9853 SdHoareTripleChecker+Invalid, 1789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:00:57,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [728 Valid, 9853 Invalid, 1789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1789 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:00:57,728 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-03-15 14:00:57,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable612 [2022-03-15 14:00:57,728 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (8286states) and FLOYD_HOARE automaton (currently 19 states, 30 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 80 for 35ms.. [2022-03-15 14:00:57,729 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-15 14:00:57,729 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-15 14:00:57,731 INFO L732 BasicCegarLoop]: Path program histogram: [252, 252, 59, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:00:57,733 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 14:00:57,733 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 14:00:57,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 02:00:57 BasicIcfg [2022-03-15 14:00:57,734 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 14:00:57,734 INFO L158 Benchmark]: Toolchain (without parser) took 723147.32ms. Allocated memory was 188.7MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 137.7MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2022-03-15 14:00:57,734 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 188.7MB. Free memory was 154.0MB in the beginning and 153.9MB in the end (delta: 143.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 14:00:57,734 INFO L158 Benchmark]: CACSL2BoogieTranslator took 185.12ms. Allocated memory is still 188.7MB. Free memory was 137.4MB in the beginning and 163.1MB in the end (delta: -25.8MB). Peak memory consumption was 10.6MB. Max. memory is 8.0GB. [2022-03-15 14:00:57,735 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.46ms. Allocated memory is still 188.7MB. Free memory was 163.1MB in the beginning and 161.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 14:00:57,735 INFO L158 Benchmark]: Boogie Preprocessor took 19.65ms. Allocated memory is still 188.7MB. Free memory was 161.2MB in the beginning and 159.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 14:00:57,735 INFO L158 Benchmark]: RCFGBuilder took 458.69ms. Allocated memory is still 188.7MB. Free memory was 159.6MB in the beginning and 143.9MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-03-15 14:00:57,735 INFO L158 Benchmark]: TraceAbstraction took 722453.70ms. Allocated memory was 188.7MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 143.4MB in the beginning and 1.2GB in the end (delta: -1.0GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2022-03-15 14:00:57,735 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 188.7MB. Free memory was 154.0MB in the beginning and 153.9MB in the end (delta: 143.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 185.12ms. Allocated memory is still 188.7MB. Free memory was 137.4MB in the beginning and 163.1MB in the end (delta: -25.8MB). Peak memory consumption was 10.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.46ms. Allocated memory is still 188.7MB. Free memory was 163.1MB in the beginning and 161.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.65ms. Allocated memory is still 188.7MB. Free memory was 161.2MB in the beginning and 159.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 458.69ms. Allocated memory is still 188.7MB. Free memory was 159.6MB in the beginning and 143.9MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 722453.70ms. Allocated memory was 188.7MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 143.4MB in the beginning and 1.2GB in the end (delta: -1.0GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (8286states) and FLOYD_HOARE automaton (currently 19 states, 30 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 80 for 35ms.. - TimeoutResultAtElement [Line: 67]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (8286states) and FLOYD_HOARE automaton (currently 19 states, 30 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 80 for 35ms.. - TimeoutResultAtElement [Line: 66]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (8286states) and FLOYD_HOARE automaton (currently 19 states, 30 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 80 for 35ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 300 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 722.3s, OverallIterations: 613, TraceHistogramMax: 1, PathProgramHistogramMax: 252, EmptinessCheckTime: 6.3s, AutomataDifference: 546.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 245538 SdHoareTripleChecker+Valid, 119.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 245538 mSDsluCounter, 2298008 SdHoareTripleChecker+Invalid, 99.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2147951 mSDsCounter, 80 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 322235 IncrementalHoareTripleChecker+Invalid, 322315 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 80 mSolverCounterUnsat, 194801 mSDtfsCounter, 322235 mSolverCounterSat, 2.7s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 38953 GetRequests, 12390 SyntacticMatches, 0 SemanticMatches, 26562 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289068 ImplicationChecksByTransitivity, 431.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11777occurred in iteration=0, InterpolantAutomatonStates: 21754, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 80.3s AutomataMinimizationTime, 612 MinimizatonAttempts, 1421744 StatesRemovedByMinimization, 608 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 82.5s InterpolantComputationTime, 69053 NumberOfCodeBlocks, 69053 NumberOfCodeBlocksAsserted, 613 NumberOfCheckSat, 68440 ConstructedInterpolants, 0 QuantifiedInterpolants, 346237 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 613 InterpolantComputations, 613 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout [2022-03-15 14:00:57,744 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end Completed graceful shutdown