/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-exp-term-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-bc289cb [2022-01-28 12:53:16,217 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-28 12:53:16,218 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-28 12:53:16,262 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-28 12:53:16,286 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-28 12:53:16,290 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-28 12:53:16,291 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-28 12:53:16,292 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-28 12:53:16,292 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-28 12:53:16,294 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-28 12:53:16,300 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-28 12:53:16,301 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-28 12:53:16,302 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-28 12:53:16,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-28 12:53:16,306 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-28 12:53:16,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-28 12:53:16,313 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-28 12:53:16,318 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-28 12:53:16,318 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-28 12:53:16,319 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-28 12:53:16,324 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 [2022-01-28 12:53:16,347 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-28 12:53:16,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-28 12:53:16,347 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-28 12:53:16,347 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-28 12:53:16,348 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-28 12:53:16,348 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-28 12:53:16,348 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-28 12:53:16,348 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-28 12:53:16,348 INFO L138 SettingsManager]: * Use SBE=true [2022-01-28 12:53:16,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-28 12:53:16,349 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-28 12:53:16,349 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-28 12:53:16,349 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-28 12:53:16,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-28 12:53:16,349 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-28 12:53:16,349 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-28 12:53:16,349 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-28 12:53:16,349 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-28 12:53:16,349 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-28 12:53:16,349 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-28 12:53:16,350 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-28 12:53:16,350 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-28 12:53:16,350 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-28 12:53:16,350 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-28 12:53:16,350 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-28 12:53:16,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-28 12:53:16,350 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-28 12:53:16,350 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-28 12:53:16,350 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-28 12:53:16,351 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-28 12:53:16,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-28 12:53:16,351 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-28 12:53:16,351 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-28 12:53:16,351 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-28 12:53:16,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-28 12:53:16,555 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-28 12:53:16,557 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-28 12:53:16,558 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-28 12:53:16,561 INFO L275 PluginConnector]: CDTParser initialized [2022-01-28 12:53:16,562 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c [2022-01-28 12:53:16,610 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/953988a4a/511b922ec9e443528e01ed99bc5ebb26/FLAG5a16daa0e [2022-01-28 12:53:16,937 INFO L306 CDTParser]: Found 1 translation units. [2022-01-28 12:53:16,937 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c [2022-01-28 12:53:16,941 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/953988a4a/511b922ec9e443528e01ed99bc5ebb26/FLAG5a16daa0e [2022-01-28 12:53:17,371 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/953988a4a/511b922ec9e443528e01ed99bc5ebb26 [2022-01-28 12:53:17,372 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-28 12:53:17,373 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-28 12:53:17,374 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-28 12:53:17,375 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-28 12:53:17,377 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-28 12:53:17,377 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 12:53:17" (1/1) ... [2022-01-28 12:53:17,378 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@569e83e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:53:17, skipping insertion in model container [2022-01-28 12:53:17,378 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 12:53:17" (1/1) ... [2022-01-28 12:53:17,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-28 12:53:17,393 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-28 12:53:17,515 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-exp-term-symm.wvr.c[2628,2641] [2022-01-28 12:53:17,518 INFO L209 PostProcessor]: Analyzing one entry point: main [2022-01-28 12:53:17,523 INFO L203 MainTranslator]: Completed pre-run [2022-01-28 12:53:17,555 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-exp-term-symm.wvr.c[2628,2641] [2022-01-28 12:53:17,556 INFO L209 PostProcessor]: Analyzing one entry point: main [2022-01-28 12:53:17,566 INFO L208 MainTranslator]: Completed translation [2022-01-28 12:53:17,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:53:17 WrapperNode [2022-01-28 12:53:17,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-28 12:53:17,568 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-28 12:53:17,569 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-28 12:53:17,569 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-28 12:53:17,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:53:17" (1/1) ... [2022-01-28 12:53:17,588 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:53:17" (1/1) ... [2022-01-28 12:53:17,605 INFO L137 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 128 [2022-01-28 12:53:17,605 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-28 12:53:17,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-28 12:53:17,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-28 12:53:17,606 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-28 12:53:17,612 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:53:17" (1/1) ... [2022-01-28 12:53:17,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:53:17" (1/1) ... [2022-01-28 12:53:17,614 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:53:17" (1/1) ... [2022-01-28 12:53:17,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:53:17" (1/1) ... [2022-01-28 12:53:17,617 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:53:17" (1/1) ... [2022-01-28 12:53:17,619 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:53:17" (1/1) ... [2022-01-28 12:53:17,620 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:53:17" (1/1) ... [2022-01-28 12:53:17,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-28 12:53:17,632 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-28 12:53:17,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-28 12:53:17,633 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-28 12:53:17,633 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:53:17" (1/1) ... [2022-01-28 12:53:17,644 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-28 12:53:17,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 12:53:17,662 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) [2022-01-28 12:53:17,678 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 [2022-01-28 12:53:17,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-28 12:53:17,693 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-28 12:53:17,693 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-28 12:53:17,693 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-28 12:53:17,694 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-28 12:53:17,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-28 12:53:17,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-28 12:53:17,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-28 12:53:17,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-28 12:53:17,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-28 12:53:17,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-28 12:53:17,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-28 12:53:17,696 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-28 12:53:17,763 INFO L234 CfgBuilder]: Building ICFG [2022-01-28 12:53:17,764 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-28 12:53:17,981 INFO L275 CfgBuilder]: Performing block encoding [2022-01-28 12:53:17,987 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-28 12:53:17,987 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-28 12:53:17,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 12:53:17 BoogieIcfgContainer [2022-01-28 12:53:17,989 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-28 12:53:17,990 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-28 12:53:17,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-28 12:53:18,005 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-28 12:53:18,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 12:53:17" (1/3) ... [2022-01-28 12:53:18,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cb0f92c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 12:53:18, skipping insertion in model container [2022-01-28 12:53:18,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:53:17" (2/3) ... [2022-01-28 12:53:18,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cb0f92c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 12:53:18, skipping insertion in model container [2022-01-28 12:53:18,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 12:53:17" (3/3) ... [2022-01-28 12:53:18,007 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-exp-term-symm.wvr.c [2022-01-28 12:53:18,010 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-28 12:53:18,010 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-28 12:53:18,010 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-28 12:53:18,010 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-28 12:53:18,033 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,034 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,034 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,034 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,034 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,034 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,034 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,034 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,035 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,035 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,035 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,035 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,035 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,035 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,035 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,035 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,035 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,035 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,036 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,036 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,036 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,036 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,036 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,036 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,036 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,036 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,036 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,036 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,037 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,037 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,037 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,037 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,037 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,037 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,037 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,037 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,037 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,037 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,038 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,038 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,038 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,038 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,042 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,042 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,042 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,043 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,043 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,043 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,043 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,043 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,043 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,043 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,043 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,043 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,043 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,044 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,044 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,044 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,044 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,044 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,044 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,044 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,044 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,044 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,044 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,045 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,045 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,045 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,045 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,045 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,045 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,045 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,045 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,045 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,045 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,046 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,046 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,046 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,046 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,046 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,046 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,046 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,046 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,046 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,046 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,046 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,047 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,047 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,047 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,047 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,047 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,047 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,047 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,047 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,048 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,048 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,048 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,048 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,048 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,049 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,049 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,049 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,049 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,049 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,049 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,049 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,049 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,049 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,050 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,050 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,050 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,050 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,050 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,050 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,050 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,050 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,050 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,050 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,050 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,051 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,051 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,051 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,051 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,051 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,051 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,051 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,051 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,051 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,051 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,051 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,052 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,052 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,052 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,052 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,052 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,052 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,052 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,052 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,052 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,052 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,053 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,053 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,053 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,053 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,053 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,053 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,053 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,053 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,053 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,053 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,054 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,054 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,054 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,054 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,054 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,054 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,054 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,054 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,054 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,055 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,055 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,055 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,055 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,055 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,055 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,055 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,055 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,055 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,055 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,056 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,056 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,056 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,056 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,056 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,056 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,056 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,056 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,056 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,056 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,057 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,057 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,057 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,057 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,057 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,057 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,057 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,057 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,057 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,060 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,060 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,060 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,060 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,060 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,060 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,060 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,060 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,060 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,060 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,061 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,061 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,061 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,066 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,066 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,066 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,066 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,066 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,067 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,067 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,067 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,067 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,067 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,067 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,067 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,067 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:53:18,069 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-28 12:53:18,097 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-28 12:53:18,101 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, 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 [2022-01-28 12:53:18,101 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-28 12:53:18,111 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 168 places, 174 transitions, 364 flow [2022-01-28 12:53:18,295 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7151 states, 7150 states have (on average 2.8864335664335665) internal successors, (20638), 7150 states have internal predecessors, (20638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:18,318 INFO L276 IsEmpty]: Start isEmpty. Operand has 7151 states, 7150 states have (on average 2.8864335664335665) internal successors, (20638), 7150 states have internal predecessors, (20638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:18,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-01-28 12:53:18,402 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:18,403 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] [2022-01-28 12:53:18,404 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:18,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:18,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1228508451, now seen corresponding path program 1 times [2022-01-28 12:53:18,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:18,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576582971] [2022-01-28 12:53:18,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:18,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:18,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:18,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:18,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:18,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576582971] [2022-01-28 12:53:18,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576582971] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:18,798 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:18,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-28 12:53:18,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052696236] [2022-01-28 12:53:18,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:18,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-28 12:53:18,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:18,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-28 12:53:18,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-28 12:53:18,857 INFO L87 Difference]: Start difference. First operand has 7151 states, 7150 states have (on average 2.8864335664335665) internal successors, (20638), 7150 states have internal predecessors, (20638), 0 states have call successors, (0), 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 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:19,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:19,120 INFO L93 Difference]: Finished difference Result 10047 states and 27493 transitions. [2022-01-28 12:53:19,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-28 12:53:19,123 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-01-28 12:53:19,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:19,181 INFO L225 Difference]: With dead ends: 10047 [2022-01-28 12:53:19,181 INFO L226 Difference]: Without dead ends: 8877 [2022-01-28 12:53:19,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2022-01-28 12:53:19,188 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 418 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 1259 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:19,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [418 Valid, 1259 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:19,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8877 states. [2022-01-28 12:53:19,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8877 to 6601. [2022-01-28 12:53:19,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6601 states, 6600 states have (on average 2.784090909090909) internal successors, (18375), 6600 states have internal predecessors, (18375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:19,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6601 states to 6601 states and 18375 transitions. [2022-01-28 12:53:19,478 INFO L78 Accepts]: Start accepts. Automaton has 6601 states and 18375 transitions. Word has length 85 [2022-01-28 12:53:19,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:19,479 INFO L470 AbstractCegarLoop]: Abstraction has 6601 states and 18375 transitions. [2022-01-28 12:53:19,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:19,480 INFO L276 IsEmpty]: Start isEmpty. Operand 6601 states and 18375 transitions. [2022-01-28 12:53:19,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-28 12:53:19,498 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:19,498 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:19,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-28 12:53:19,499 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:19,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:19,501 INFO L85 PathProgramCache]: Analyzing trace with hash 170552789, now seen corresponding path program 1 times [2022-01-28 12:53:19,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:19,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068770322] [2022-01-28 12:53:19,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:19,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:19,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:19,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:19,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:19,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068770322] [2022-01-28 12:53:19,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068770322] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:19,632 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:19,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-28 12:53:19,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109814679] [2022-01-28 12:53:19,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:19,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-28 12:53:19,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:19,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-28 12:53:19,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-28 12:53:19,633 INFO L87 Difference]: Start difference. First operand 6601 states and 18375 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:19,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:19,716 INFO L93 Difference]: Finished difference Result 8148 states and 22245 transitions. [2022-01-28 12:53:19,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-28 12:53:19,717 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-01-28 12:53:19,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:19,749 INFO L225 Difference]: With dead ends: 8148 [2022-01-28 12:53:19,749 INFO L226 Difference]: Without dead ends: 8148 [2022-01-28 12:53:19,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-28 12:53:19,750 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 226 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:19,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 329 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 12:53:19,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8148 states. [2022-01-28 12:53:19,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8148 to 6867. [2022-01-28 12:53:19,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6867 states, 6866 states have (on average 2.7599766967666763) internal successors, (18950), 6866 states have internal predecessors, (18950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:19,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6867 states to 6867 states and 18950 transitions. [2022-01-28 12:53:19,995 INFO L78 Accepts]: Start accepts. Automaton has 6867 states and 18950 transitions. Word has length 87 [2022-01-28 12:53:19,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:19,996 INFO L470 AbstractCegarLoop]: Abstraction has 6867 states and 18950 transitions. [2022-01-28 12:53:19,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:19,996 INFO L276 IsEmpty]: Start isEmpty. Operand 6867 states and 18950 transitions. [2022-01-28 12:53:20,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-28 12:53:20,013 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:20,013 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] [2022-01-28 12:53:20,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-28 12:53:20,013 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:20,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:20,014 INFO L85 PathProgramCache]: Analyzing trace with hash -993683521, now seen corresponding path program 1 times [2022-01-28 12:53:20,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:20,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095190952] [2022-01-28 12:53:20,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:20,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:20,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:20,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:20,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:20,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095190952] [2022-01-28 12:53:20,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095190952] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:20,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:20,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-28 12:53:20,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833702792] [2022-01-28 12:53:20,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:20,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-28 12:53:20,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:20,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-28 12:53:20,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-28 12:53:20,129 INFO L87 Difference]: Start difference. First operand 6867 states and 18950 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:20,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:20,205 INFO L93 Difference]: Finished difference Result 9672 states and 26243 transitions. [2022-01-28 12:53:20,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-28 12:53:20,206 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-01-28 12:53:20,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:20,229 INFO L225 Difference]: With dead ends: 9672 [2022-01-28 12:53:20,229 INFO L226 Difference]: Without dead ends: 9672 [2022-01-28 12:53:20,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-28 12:53:20,230 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 251 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:20,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 379 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 12:53:20,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9672 states. [2022-01-28 12:53:20,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9672 to 6885. [2022-01-28 12:53:20,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6885 states, 6884 states have (on average 2.745496804183614) internal successors, (18900), 6884 states have internal predecessors, (18900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:20,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6885 states to 6885 states and 18900 transitions. [2022-01-28 12:53:20,476 INFO L78 Accepts]: Start accepts. Automaton has 6885 states and 18900 transitions. Word has length 87 [2022-01-28 12:53:20,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:20,477 INFO L470 AbstractCegarLoop]: Abstraction has 6885 states and 18900 transitions. [2022-01-28 12:53:20,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:20,477 INFO L276 IsEmpty]: Start isEmpty. Operand 6885 states and 18900 transitions. [2022-01-28 12:53:20,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-28 12:53:20,495 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:20,495 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] [2022-01-28 12:53:20,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-28 12:53:20,495 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:20,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:20,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1203068365, now seen corresponding path program 2 times [2022-01-28 12:53:20,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:20,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438411198] [2022-01-28 12:53:20,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:20,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:20,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:20,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:20,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:20,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438411198] [2022-01-28 12:53:20,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438411198] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:20,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:20,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-28 12:53:20,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570809673] [2022-01-28 12:53:20,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:20,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-28 12:53:20,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:20,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-28 12:53:20,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-28 12:53:20,547 INFO L87 Difference]: Start difference. First operand 6885 states and 18900 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:20,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:20,607 INFO L93 Difference]: Finished difference Result 7730 states and 20793 transitions. [2022-01-28 12:53:20,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-28 12:53:20,607 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-01-28 12:53:20,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:20,625 INFO L225 Difference]: With dead ends: 7730 [2022-01-28 12:53:20,625 INFO L226 Difference]: Without dead ends: 7730 [2022-01-28 12:53:20,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-28 12:53:20,633 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 250 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:20,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [250 Valid, 303 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 12:53:20,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7730 states. [2022-01-28 12:53:20,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7730 to 7046. [2022-01-28 12:53:20,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7046 states, 7045 states have (on average 2.7144073811213625) internal successors, (19123), 7045 states have internal predecessors, (19123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:20,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7046 states to 7046 states and 19123 transitions. [2022-01-28 12:53:20,818 INFO L78 Accepts]: Start accepts. Automaton has 7046 states and 19123 transitions. Word has length 87 [2022-01-28 12:53:20,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:20,821 INFO L470 AbstractCegarLoop]: Abstraction has 7046 states and 19123 transitions. [2022-01-28 12:53:20,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:20,822 INFO L276 IsEmpty]: Start isEmpty. Operand 7046 states and 19123 transitions. [2022-01-28 12:53:20,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-28 12:53:20,838 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:20,838 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] [2022-01-28 12:53:20,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-28 12:53:20,839 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:20,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:20,839 INFO L85 PathProgramCache]: Analyzing trace with hash -958876555, now seen corresponding path program 3 times [2022-01-28 12:53:20,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:20,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118263383] [2022-01-28 12:53:20,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:20,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:20,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:20,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:20,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:20,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118263383] [2022-01-28 12:53:20,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118263383] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:20,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:20,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-28 12:53:20,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962685282] [2022-01-28 12:53:20,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:20,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-28 12:53:20,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:20,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-28 12:53:20,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-28 12:53:20,905 INFO L87 Difference]: Start difference. First operand 7046 states and 19123 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:20,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:20,998 INFO L93 Difference]: Finished difference Result 9884 states and 26268 transitions. [2022-01-28 12:53:20,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-28 12:53:20,999 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-01-28 12:53:20,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:21,018 INFO L225 Difference]: With dead ends: 9884 [2022-01-28 12:53:21,019 INFO L226 Difference]: Without dead ends: 9884 [2022-01-28 12:53:21,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-28 12:53:21,019 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 260 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:21,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 494 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:21,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9884 states. [2022-01-28 12:53:21,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9884 to 7137. [2022-01-28 12:53:21,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7137 states, 7136 states have (on average 2.7058576233183858) internal successors, (19309), 7136 states have internal predecessors, (19309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:21,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7137 states to 7137 states and 19309 transitions. [2022-01-28 12:53:21,233 INFO L78 Accepts]: Start accepts. Automaton has 7137 states and 19309 transitions. Word has length 87 [2022-01-28 12:53:21,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:21,233 INFO L470 AbstractCegarLoop]: Abstraction has 7137 states and 19309 transitions. [2022-01-28 12:53:21,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:21,234 INFO L276 IsEmpty]: Start isEmpty. Operand 7137 states and 19309 transitions. [2022-01-28 12:53:21,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-28 12:53:21,248 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:21,248 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] [2022-01-28 12:53:21,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-28 12:53:21,249 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:21,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:21,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1113507785, now seen corresponding path program 2 times [2022-01-28 12:53:21,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:21,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226570599] [2022-01-28 12:53:21,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:21,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:21,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:21,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:21,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:21,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226570599] [2022-01-28 12:53:21,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226570599] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:21,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:21,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-28 12:53:21,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132768479] [2022-01-28 12:53:21,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:21,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-28 12:53:21,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:21,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-28 12:53:21,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-28 12:53:21,287 INFO L87 Difference]: Start difference. First operand 7137 states and 19309 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:21,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:21,349 INFO L93 Difference]: Finished difference Result 7758 states and 20803 transitions. [2022-01-28 12:53:21,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-28 12:53:21,350 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-01-28 12:53:21,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:21,373 INFO L225 Difference]: With dead ends: 7758 [2022-01-28 12:53:21,374 INFO L226 Difference]: Without dead ends: 7758 [2022-01-28 12:53:21,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-28 12:53:21,375 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 286 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:21,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [286 Valid, 276 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 12:53:21,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7758 states. [2022-01-28 12:53:21,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7758 to 7082. [2022-01-28 12:53:21,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7082 states, 7081 states have (on average 2.699759920915125) internal successors, (19117), 7081 states have internal predecessors, (19117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:21,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7082 states to 7082 states and 19117 transitions. [2022-01-28 12:53:21,546 INFO L78 Accepts]: Start accepts. Automaton has 7082 states and 19117 transitions. Word has length 87 [2022-01-28 12:53:21,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:21,546 INFO L470 AbstractCegarLoop]: Abstraction has 7082 states and 19117 transitions. [2022-01-28 12:53:21,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:21,546 INFO L276 IsEmpty]: Start isEmpty. Operand 7082 states and 19117 transitions. [2022-01-28 12:53:21,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:21,558 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:21,559 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:21,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-28 12:53:21,559 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:21,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:21,559 INFO L85 PathProgramCache]: Analyzing trace with hash -121906834, now seen corresponding path program 1 times [2022-01-28 12:53:21,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:21,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307156075] [2022-01-28 12:53:21,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:21,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:21,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:21,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:21,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:21,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307156075] [2022-01-28 12:53:21,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307156075] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:21,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:21,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:21,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463359091] [2022-01-28 12:53:21,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:21,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:21,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:21,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:21,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:21,666 INFO L87 Difference]: Start difference. First operand 7082 states and 19117 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:22,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:22,030 INFO L93 Difference]: Finished difference Result 8745 states and 23298 transitions. [2022-01-28 12:53:22,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-28 12:53:22,031 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:22,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:22,049 INFO L225 Difference]: With dead ends: 8745 [2022-01-28 12:53:22,049 INFO L226 Difference]: Without dead ends: 8398 [2022-01-28 12:53:22,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=283, Invalid=839, Unknown=0, NotChecked=0, Total=1122 [2022-01-28 12:53:22,050 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 412 mSDsluCounter, 1262 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 1534 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 [2022-01-28 12:53:22,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [412 Valid, 1534 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:22,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8398 states. [2022-01-28 12:53:22,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8398 to 6955. [2022-01-28 12:53:22,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6955 states, 6954 states have (on average 2.7018981880931836) internal successors, (18789), 6954 states have internal predecessors, (18789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:22,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6955 states to 6955 states and 18789 transitions. [2022-01-28 12:53:22,231 INFO L78 Accepts]: Start accepts. Automaton has 6955 states and 18789 transitions. Word has length 91 [2022-01-28 12:53:22,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:22,231 INFO L470 AbstractCegarLoop]: Abstraction has 6955 states and 18789 transitions. [2022-01-28 12:53:22,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:22,231 INFO L276 IsEmpty]: Start isEmpty. Operand 6955 states and 18789 transitions. [2022-01-28 12:53:22,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:22,244 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:22,244 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:22,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-28 12:53:22,244 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:22,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:22,245 INFO L85 PathProgramCache]: Analyzing trace with hash -57199682, now seen corresponding path program 2 times [2022-01-28 12:53:22,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:22,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803494135] [2022-01-28 12:53:22,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:22,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:22,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:22,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:22,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:22,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803494135] [2022-01-28 12:53:22,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803494135] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:22,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:22,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:22,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901914917] [2022-01-28 12:53:22,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:22,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:22,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:22,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:22,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:22,348 INFO L87 Difference]: Start difference. First operand 6955 states and 18789 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:22,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:22,709 INFO L93 Difference]: Finished difference Result 8014 states and 21541 transitions. [2022-01-28 12:53:22,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-28 12:53:22,709 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:22,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:22,726 INFO L225 Difference]: With dead ends: 8014 [2022-01-28 12:53:22,726 INFO L226 Difference]: Without dead ends: 7698 [2022-01-28 12:53:22,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=244, Invalid=812, Unknown=0, NotChecked=0, Total=1056 [2022-01-28 12:53:22,727 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 234 mSDsluCounter, 2075 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 2302 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:22,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 2302 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:22,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7698 states. [2022-01-28 12:53:22,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7698 to 6959. [2022-01-28 12:53:22,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6959 states, 6958 states have (on average 2.7013509629203796) internal successors, (18796), 6958 states have internal predecessors, (18796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:22,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6959 states to 6959 states and 18796 transitions. [2022-01-28 12:53:22,935 INFO L78 Accepts]: Start accepts. Automaton has 6959 states and 18796 transitions. Word has length 91 [2022-01-28 12:53:22,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:22,935 INFO L470 AbstractCegarLoop]: Abstraction has 6959 states and 18796 transitions. [2022-01-28 12:53:22,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:22,935 INFO L276 IsEmpty]: Start isEmpty. Operand 6959 states and 18796 transitions. [2022-01-28 12:53:22,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:22,952 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:22,952 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] [2022-01-28 12:53:22,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-28 12:53:22,952 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:22,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:22,953 INFO L85 PathProgramCache]: Analyzing trace with hash 238403154, now seen corresponding path program 3 times [2022-01-28 12:53:22,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:22,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211880422] [2022-01-28 12:53:22,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:22,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:22,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:23,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:23,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:23,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211880422] [2022-01-28 12:53:23,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211880422] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:23,058 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:23,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:23,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218322694] [2022-01-28 12:53:23,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:23,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:23,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:23,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:23,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:23,060 INFO L87 Difference]: Start difference. First operand 6959 states and 18796 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:23,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:23,335 INFO L93 Difference]: Finished difference Result 7925 states and 21311 transitions. [2022-01-28 12:53:23,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-28 12:53:23,336 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:23,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:23,352 INFO L225 Difference]: With dead ends: 7925 [2022-01-28 12:53:23,352 INFO L226 Difference]: Without dead ends: 7640 [2022-01-28 12:53:23,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=183, Invalid=629, Unknown=0, NotChecked=0, Total=812 [2022-01-28 12:53:23,354 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 187 mSDsluCounter, 1740 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 1973 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 [2022-01-28 12:53:23,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 1973 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:23,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7640 states. [2022-01-28 12:53:23,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7640 to 6963. [2022-01-28 12:53:23,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6963 states, 6962 states have (on average 2.700804366561333) internal successors, (18803), 6962 states have internal predecessors, (18803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:23,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6963 states to 6963 states and 18803 transitions. [2022-01-28 12:53:23,488 INFO L78 Accepts]: Start accepts. Automaton has 6963 states and 18803 transitions. Word has length 91 [2022-01-28 12:53:23,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:23,488 INFO L470 AbstractCegarLoop]: Abstraction has 6963 states and 18803 transitions. [2022-01-28 12:53:23,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:23,488 INFO L276 IsEmpty]: Start isEmpty. Operand 6963 states and 18803 transitions. [2022-01-28 12:53:23,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:23,498 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:23,498 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:23,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-28 12:53:23,499 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:23,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:23,499 INFO L85 PathProgramCache]: Analyzing trace with hash -179778500, now seen corresponding path program 4 times [2022-01-28 12:53:23,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:23,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092751090] [2022-01-28 12:53:23,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:23,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:23,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:23,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:23,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:23,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092751090] [2022-01-28 12:53:23,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092751090] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:23,618 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:23,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:23,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229022789] [2022-01-28 12:53:23,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:23,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:23,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:23,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:23,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:23,619 INFO L87 Difference]: Start difference. First operand 6963 states and 18803 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:23,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:23,859 INFO L93 Difference]: Finished difference Result 7814 states and 21025 transitions. [2022-01-28 12:53:23,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-28 12:53:23,859 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:23,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:23,874 INFO L225 Difference]: With dead ends: 7814 [2022-01-28 12:53:23,874 INFO L226 Difference]: Without dead ends: 7563 [2022-01-28 12:53:23,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=164, Invalid=436, Unknown=0, NotChecked=0, Total=600 [2022-01-28 12:53:23,875 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 149 mSDsluCounter, 1067 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:23,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 1303 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:23,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7563 states. [2022-01-28 12:53:23,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7563 to 6967. [2022-01-28 12:53:24,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6967 states, 6966 states have (on average 2.7002583979328167) internal successors, (18810), 6966 states have internal predecessors, (18810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:24,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6967 states to 6967 states and 18810 transitions. [2022-01-28 12:53:24,016 INFO L78 Accepts]: Start accepts. Automaton has 6967 states and 18810 transitions. Word has length 91 [2022-01-28 12:53:24,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:24,016 INFO L470 AbstractCegarLoop]: Abstraction has 6967 states and 18810 transitions. [2022-01-28 12:53:24,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:24,017 INFO L276 IsEmpty]: Start isEmpty. Operand 6967 states and 18810 transitions. [2022-01-28 12:53:24,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:24,061 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:24,061 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:24,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-28 12:53:24,061 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:24,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:24,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1313042934, now seen corresponding path program 5 times [2022-01-28 12:53:24,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:24,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542975105] [2022-01-28 12:53:24,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:24,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:24,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:24,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:24,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:24,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542975105] [2022-01-28 12:53:24,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542975105] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:24,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:24,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:24,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248486765] [2022-01-28 12:53:24,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:24,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:24,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:24,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:24,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:24,167 INFO L87 Difference]: Start difference. First operand 6967 states and 18810 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:24,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:24,413 INFO L93 Difference]: Finished difference Result 7785 states and 20943 transitions. [2022-01-28 12:53:24,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-28 12:53:24,413 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:24,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:24,427 INFO L225 Difference]: With dead ends: 7785 [2022-01-28 12:53:24,428 INFO L226 Difference]: Without dead ends: 7515 [2022-01-28 12:53:24,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-01-28 12:53:24,429 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 149 mSDsluCounter, 1567 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1798 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:24,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 1798 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:24,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7515 states. [2022-01-28 12:53:24,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7515 to 6933. [2022-01-28 12:53:24,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6933 states, 6932 states have (on average 2.701817657241777) internal successors, (18729), 6932 states have internal predecessors, (18729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:24,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6933 states to 6933 states and 18729 transitions. [2022-01-28 12:53:24,579 INFO L78 Accepts]: Start accepts. Automaton has 6933 states and 18729 transitions. Word has length 91 [2022-01-28 12:53:24,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:24,580 INFO L470 AbstractCegarLoop]: Abstraction has 6933 states and 18729 transitions. [2022-01-28 12:53:24,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:24,580 INFO L276 IsEmpty]: Start isEmpty. Operand 6933 states and 18729 transitions. [2022-01-28 12:53:24,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:24,591 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:24,591 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:24,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-28 12:53:24,591 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:24,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:24,592 INFO L85 PathProgramCache]: Analyzing trace with hash -928662206, now seen corresponding path program 6 times [2022-01-28 12:53:24,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:24,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852371756] [2022-01-28 12:53:24,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:24,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:24,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:24,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:24,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:24,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852371756] [2022-01-28 12:53:24,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852371756] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:24,691 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:24,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:24,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918297033] [2022-01-28 12:53:24,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:24,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:24,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:24,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:24,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:24,692 INFO L87 Difference]: Start difference. First operand 6933 states and 18729 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:25,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:25,047 INFO L93 Difference]: Finished difference Result 8034 states and 21592 transitions. [2022-01-28 12:53:25,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-28 12:53:25,047 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:25,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:25,061 INFO L225 Difference]: With dead ends: 8034 [2022-01-28 12:53:25,061 INFO L226 Difference]: Without dead ends: 7718 [2022-01-28 12:53:25,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=229, Invalid=701, Unknown=0, NotChecked=0, Total=930 [2022-01-28 12:53:25,063 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 196 mSDsluCounter, 1401 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 1611 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 [2022-01-28 12:53:25,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 1611 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:25,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7718 states. [2022-01-28 12:53:25,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7718 to 6941. [2022-01-28 12:53:25,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 6940 states have (on average 2.7012968299711817) internal successors, (18747), 6940 states have internal predecessors, (18747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:25,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 18747 transitions. [2022-01-28 12:53:25,207 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 18747 transitions. Word has length 91 [2022-01-28 12:53:25,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:25,207 INFO L470 AbstractCegarLoop]: Abstraction has 6941 states and 18747 transitions. [2022-01-28 12:53:25,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:25,207 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 18747 transitions. [2022-01-28 12:53:25,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:25,217 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:25,218 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:25,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-28 12:53:25,218 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:25,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:25,218 INFO L85 PathProgramCache]: Analyzing trace with hash -633059370, now seen corresponding path program 7 times [2022-01-28 12:53:25,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:25,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252863406] [2022-01-28 12:53:25,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:25,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:25,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:25,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:25,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:25,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252863406] [2022-01-28 12:53:25,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252863406] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:25,313 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:25,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:25,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536616004] [2022-01-28 12:53:25,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:25,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:25,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:25,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:25,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:25,315 INFO L87 Difference]: Start difference. First operand 6941 states and 18747 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:25,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:25,630 INFO L93 Difference]: Finished difference Result 7997 states and 21505 transitions. [2022-01-28 12:53:25,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-28 12:53:25,631 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:25,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:25,690 INFO L225 Difference]: With dead ends: 7997 [2022-01-28 12:53:25,690 INFO L226 Difference]: Without dead ends: 7712 [2022-01-28 12:53:25,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=176, Invalid=580, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:53:25,691 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 160 mSDsluCounter, 1756 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1950 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 [2022-01-28 12:53:25,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 1950 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:25,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7712 states. [2022-01-28 12:53:25,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7712 to 6945. [2022-01-28 12:53:25,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6945 states, 6944 states have (on average 2.7007488479262673) internal successors, (18754), 6944 states have internal predecessors, (18754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:25,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6945 states to 6945 states and 18754 transitions. [2022-01-28 12:53:25,804 INFO L78 Accepts]: Start accepts. Automaton has 6945 states and 18754 transitions. Word has length 91 [2022-01-28 12:53:25,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:25,804 INFO L470 AbstractCegarLoop]: Abstraction has 6945 states and 18754 transitions. [2022-01-28 12:53:25,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:25,805 INFO L276 IsEmpty]: Start isEmpty. Operand 6945 states and 18754 transitions. [2022-01-28 12:53:25,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:25,815 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:25,815 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:25,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-28 12:53:25,816 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:25,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:25,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1051241024, now seen corresponding path program 8 times [2022-01-28 12:53:25,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:25,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234428899] [2022-01-28 12:53:25,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:25,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:25,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:25,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:25,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:25,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234428899] [2022-01-28 12:53:25,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234428899] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:25,917 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:25,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:25,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493205716] [2022-01-28 12:53:25,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:25,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:25,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:25,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:25,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:25,918 INFO L87 Difference]: Start difference. First operand 6945 states and 18754 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:26,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:26,170 INFO L93 Difference]: Finished difference Result 7894 states and 21241 transitions. [2022-01-28 12:53:26,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-28 12:53:26,183 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:26,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:26,195 INFO L225 Difference]: With dead ends: 7894 [2022-01-28 12:53:26,196 INFO L226 Difference]: Without dead ends: 7643 [2022-01-28 12:53:26,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2022-01-28 12:53:26,196 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 118 mSDsluCounter, 1320 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:26,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 1523 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:26,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7643 states. [2022-01-28 12:53:26,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7643 to 6949. [2022-01-28 12:53:26,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6949 states, 6948 states have (on average 2.700201496833621) internal successors, (18761), 6948 states have internal predecessors, (18761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:26,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6949 states to 6949 states and 18761 transitions. [2022-01-28 12:53:26,305 INFO L78 Accepts]: Start accepts. Automaton has 6949 states and 18761 transitions. Word has length 91 [2022-01-28 12:53:26,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:26,305 INFO L470 AbstractCegarLoop]: Abstraction has 6949 states and 18761 transitions. [2022-01-28 12:53:26,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:26,305 INFO L276 IsEmpty]: Start isEmpty. Operand 6949 states and 18761 transitions. [2022-01-28 12:53:26,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:26,315 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:26,315 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:26,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-28 12:53:26,315 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:26,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:26,316 INFO L85 PathProgramCache]: Analyzing trace with hash 441580410, now seen corresponding path program 9 times [2022-01-28 12:53:26,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:26,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217342117] [2022-01-28 12:53:26,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:26,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:26,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:26,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:26,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:26,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217342117] [2022-01-28 12:53:26,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217342117] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:26,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:26,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:26,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138981538] [2022-01-28 12:53:26,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:26,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:26,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:26,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:26,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:26,409 INFO L87 Difference]: Start difference. First operand 6949 states and 18761 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:26,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:26,628 INFO L93 Difference]: Finished difference Result 7865 states and 21159 transitions. [2022-01-28 12:53:26,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-28 12:53:26,628 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:26,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:26,641 INFO L225 Difference]: With dead ends: 7865 [2022-01-28 12:53:26,641 INFO L226 Difference]: Without dead ends: 7599 [2022-01-28 12:53:26,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=130, Invalid=422, Unknown=0, NotChecked=0, Total=552 [2022-01-28 12:53:26,641 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 114 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 1699 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 [2022-01-28 12:53:26,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 1699 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:26,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7599 states. [2022-01-28 12:53:26,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7599 to 6937. [2022-01-28 12:53:26,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6937 states, 6936 states have (on average 2.701268742791234) internal successors, (18736), 6936 states have internal predecessors, (18736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:26,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6937 states to 6937 states and 18736 transitions. [2022-01-28 12:53:26,764 INFO L78 Accepts]: Start accepts. Automaton has 6937 states and 18736 transitions. Word has length 91 [2022-01-28 12:53:26,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:26,764 INFO L470 AbstractCegarLoop]: Abstraction has 6937 states and 18736 transitions. [2022-01-28 12:53:26,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:26,764 INFO L276 IsEmpty]: Start isEmpty. Operand 6937 states and 18736 transitions. [2022-01-28 12:53:26,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:26,774 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:26,774 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] [2022-01-28 12:53:26,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-28 12:53:26,775 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:26,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:26,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1338573798, now seen corresponding path program 10 times [2022-01-28 12:53:26,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:26,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459614551] [2022-01-28 12:53:26,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:26,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:26,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:26,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:26,864 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:26,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459614551] [2022-01-28 12:53:26,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459614551] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:26,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:26,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:26,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302197670] [2022-01-28 12:53:26,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:26,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:26,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:26,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:26,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:26,866 INFO L87 Difference]: Start difference. First operand 6937 states and 18736 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:27,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:27,150 INFO L93 Difference]: Finished difference Result 7914 states and 21288 transitions. [2022-01-28 12:53:27,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-28 12:53:27,151 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:27,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:27,163 INFO L225 Difference]: With dead ends: 7914 [2022-01-28 12:53:27,163 INFO L226 Difference]: Without dead ends: 7635 [2022-01-28 12:53:27,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=213, Invalid=599, Unknown=0, NotChecked=0, Total=812 [2022-01-28 12:53:27,164 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 164 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 1091 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:27,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 1091 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:27,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7635 states. [2022-01-28 12:53:27,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7635 to 6945. [2022-01-28 12:53:27,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6945 states, 6944 states have (on average 2.7007488479262673) internal successors, (18754), 6944 states have internal predecessors, (18754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:27,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6945 states to 6945 states and 18754 transitions. [2022-01-28 12:53:27,310 INFO L78 Accepts]: Start accepts. Automaton has 6945 states and 18754 transitions. Word has length 91 [2022-01-28 12:53:27,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:27,311 INFO L470 AbstractCegarLoop]: Abstraction has 6945 states and 18754 transitions. [2022-01-28 12:53:27,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:27,311 INFO L276 IsEmpty]: Start isEmpty. Operand 6945 states and 18754 transitions. [2022-01-28 12:53:27,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:27,322 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:27,322 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] [2022-01-28 12:53:27,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-28 12:53:27,322 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:27,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:27,323 INFO L85 PathProgramCache]: Analyzing trace with hash -94611704, now seen corresponding path program 11 times [2022-01-28 12:53:27,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:27,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666020851] [2022-01-28 12:53:27,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:27,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:27,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:27,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:27,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:27,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666020851] [2022-01-28 12:53:27,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666020851] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:27,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:27,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:27,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941791951] [2022-01-28 12:53:27,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:27,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:27,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:27,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:27,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:27,434 INFO L87 Difference]: Start difference. First operand 6945 states and 18754 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:27,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:27,727 INFO L93 Difference]: Finished difference Result 7874 states and 21186 transitions. [2022-01-28 12:53:27,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-28 12:53:27,727 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:27,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:27,740 INFO L225 Difference]: With dead ends: 7874 [2022-01-28 12:53:27,741 INFO L226 Difference]: Without dead ends: 7623 [2022-01-28 12:53:27,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=531, Unknown=0, NotChecked=0, Total=702 [2022-01-28 12:53:27,741 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 127 mSDsluCounter, 1435 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 1637 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:27,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 1637 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:27,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7623 states. [2022-01-28 12:53:27,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7623 to 6949. [2022-01-28 12:53:27,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6949 states, 6948 states have (on average 2.700201496833621) internal successors, (18761), 6948 states have internal predecessors, (18761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:27,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6949 states to 6949 states and 18761 transitions. [2022-01-28 12:53:27,886 INFO L78 Accepts]: Start accepts. Automaton has 6949 states and 18761 transitions. Word has length 91 [2022-01-28 12:53:27,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:27,886 INFO L470 AbstractCegarLoop]: Abstraction has 6949 states and 18761 transitions. [2022-01-28 12:53:27,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:27,886 INFO L276 IsEmpty]: Start isEmpty. Operand 6949 states and 18761 transitions. [2022-01-28 12:53:27,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:27,896 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:27,897 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] [2022-01-28 12:53:27,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-28 12:53:27,897 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:27,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:27,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1398209730, now seen corresponding path program 12 times [2022-01-28 12:53:27,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:27,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720884381] [2022-01-28 12:53:27,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:27,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:27,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:27,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:27,993 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:27,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720884381] [2022-01-28 12:53:27,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720884381] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:27,993 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:27,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:27,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107105210] [2022-01-28 12:53:27,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:27,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:27,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:27,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:27,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:27,994 INFO L87 Difference]: Start difference. First operand 6949 states and 18761 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:28,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:28,234 INFO L93 Difference]: Finished difference Result 7845 states and 21104 transitions. [2022-01-28 12:53:28,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-28 12:53:28,234 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:28,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:28,247 INFO L225 Difference]: With dead ends: 7845 [2022-01-28 12:53:28,247 INFO L226 Difference]: Without dead ends: 7583 [2022-01-28 12:53:28,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-01-28 12:53:28,248 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 115 mSDsluCounter, 1442 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1643 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 [2022-01-28 12:53:28,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 1643 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:28,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7583 states. [2022-01-28 12:53:28,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7583 to 6941. [2022-01-28 12:53:28,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 6940 states have (on average 2.7007204610951008) internal successors, (18743), 6940 states have internal predecessors, (18743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:28,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 18743 transitions. [2022-01-28 12:53:28,359 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 18743 transitions. Word has length 91 [2022-01-28 12:53:28,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:28,360 INFO L470 AbstractCegarLoop]: Abstraction has 6941 states and 18743 transitions. [2022-01-28 12:53:28,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:28,360 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 18743 transitions. [2022-01-28 12:53:28,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:28,370 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:28,370 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] [2022-01-28 12:53:28,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-28 12:53:28,370 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:28,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:28,370 INFO L85 PathProgramCache]: Analyzing trace with hash 405891160, now seen corresponding path program 13 times [2022-01-28 12:53:28,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:28,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631613915] [2022-01-28 12:53:28,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:28,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:28,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:28,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:28,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:28,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631613915] [2022-01-28 12:53:28,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631613915] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:28,478 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:28,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:28,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401049066] [2022-01-28 12:53:28,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:28,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:28,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:28,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:28,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:28,479 INFO L87 Difference]: Start difference. First operand 6941 states and 18743 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:28,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:28,755 INFO L93 Difference]: Finished difference Result 7929 states and 21314 transitions. [2022-01-28 12:53:28,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-28 12:53:28,755 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:28,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:28,769 INFO L225 Difference]: With dead ends: 7929 [2022-01-28 12:53:28,769 INFO L226 Difference]: Without dead ends: 7644 [2022-01-28 12:53:28,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=174, Invalid=528, Unknown=0, NotChecked=0, Total=702 [2022-01-28 12:53:28,770 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 164 mSDsluCounter, 1423 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 1627 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:28,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 1627 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:28,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7644 states. [2022-01-28 12:53:28,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7644 to 6945. [2022-01-28 12:53:28,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6945 states, 6944 states have (on average 2.700172811059908) internal successors, (18750), 6944 states have internal predecessors, (18750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:28,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6945 states to 6945 states and 18750 transitions. [2022-01-28 12:53:28,934 INFO L78 Accepts]: Start accepts. Automaton has 6945 states and 18750 transitions. Word has length 91 [2022-01-28 12:53:28,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:28,934 INFO L470 AbstractCegarLoop]: Abstraction has 6945 states and 18750 transitions. [2022-01-28 12:53:28,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:28,934 INFO L276 IsEmpty]: Start isEmpty. Operand 6945 states and 18750 transitions. [2022-01-28 12:53:28,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:28,944 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:28,944 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:28,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-28 12:53:28,944 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:28,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:28,944 INFO L85 PathProgramCache]: Analyzing trace with hash -12290494, now seen corresponding path program 14 times [2022-01-28 12:53:28,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:28,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875686817] [2022-01-28 12:53:28,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:28,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:28,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:29,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:29,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:29,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875686817] [2022-01-28 12:53:29,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875686817] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:29,028 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:29,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:29,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550354641] [2022-01-28 12:53:29,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:29,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:29,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:29,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:29,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:29,029 INFO L87 Difference]: Start difference. First operand 6945 states and 18750 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:29,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:29,284 INFO L93 Difference]: Finished difference Result 7830 states and 21061 transitions. [2022-01-28 12:53:29,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-28 12:53:29,284 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:29,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:29,296 INFO L225 Difference]: With dead ends: 7830 [2022-01-28 12:53:29,296 INFO L226 Difference]: Without dead ends: 7579 [2022-01-28 12:53:29,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=161, Invalid=489, Unknown=0, NotChecked=0, Total=650 [2022-01-28 12:53:29,297 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 128 mSDsluCounter, 1571 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1768 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:29,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 1768 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:29,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7579 states. [2022-01-28 12:53:29,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7579 to 6949. [2022-01-28 12:53:29,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6949 states, 6948 states have (on average 2.6996257915947037) internal successors, (18757), 6948 states have internal predecessors, (18757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:29,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6949 states to 6949 states and 18757 transitions. [2022-01-28 12:53:29,402 INFO L78 Accepts]: Start accepts. Automaton has 6949 states and 18757 transitions. Word has length 91 [2022-01-28 12:53:29,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:29,402 INFO L470 AbstractCegarLoop]: Abstraction has 6949 states and 18757 transitions. [2022-01-28 12:53:29,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:29,402 INFO L276 IsEmpty]: Start isEmpty. Operand 6949 states and 18757 transitions. [2022-01-28 12:53:29,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:29,411 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:29,411 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:29,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-28 12:53:29,412 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:29,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:29,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1480530940, now seen corresponding path program 15 times [2022-01-28 12:53:29,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:29,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471732581] [2022-01-28 12:53:29,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:29,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:29,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:29,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:29,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:29,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471732581] [2022-01-28 12:53:29,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471732581] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:29,498 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:29,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:29,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710103950] [2022-01-28 12:53:29,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:29,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:29,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:29,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:29,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:29,499 INFO L87 Difference]: Start difference. First operand 6949 states and 18757 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:29,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:29,716 INFO L93 Difference]: Finished difference Result 7785 states and 20935 transitions. [2022-01-28 12:53:29,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-28 12:53:29,716 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:29,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:29,728 INFO L225 Difference]: With dead ends: 7785 [2022-01-28 12:53:29,728 INFO L226 Difference]: Without dead ends: 7511 [2022-01-28 12:53:29,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2022-01-28 12:53:29,729 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 123 mSDsluCounter, 1483 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1677 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 [2022-01-28 12:53:29,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 1677 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:29,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7511 states. [2022-01-28 12:53:29,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7511 to 6921. [2022-01-28 12:53:29,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6921 states, 6920 states have (on average 2.7011560693641616) internal successors, (18692), 6920 states have internal predecessors, (18692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:29,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6921 states to 6921 states and 18692 transitions. [2022-01-28 12:53:29,838 INFO L78 Accepts]: Start accepts. Automaton has 6921 states and 18692 transitions. Word has length 91 [2022-01-28 12:53:29,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:29,838 INFO L470 AbstractCegarLoop]: Abstraction has 6921 states and 18692 transitions. [2022-01-28 12:53:29,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:29,839 INFO L276 IsEmpty]: Start isEmpty. Operand 6921 states and 18692 transitions. [2022-01-28 12:53:29,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:29,848 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:29,848 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] [2022-01-28 12:53:29,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-28 12:53:29,849 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:29,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:29,849 INFO L85 PathProgramCache]: Analyzing trace with hash 899547442, now seen corresponding path program 16 times [2022-01-28 12:53:29,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:29,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681764153] [2022-01-28 12:53:29,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:29,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:29,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:29,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:29,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:29,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681764153] [2022-01-28 12:53:29,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681764153] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:29,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:29,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:29,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115145160] [2022-01-28 12:53:29,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:29,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:29,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:29,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:29,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:29,943 INFO L87 Difference]: Start difference. First operand 6921 states and 18692 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:30,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:30,271 INFO L93 Difference]: Finished difference Result 8298 states and 22306 transitions. [2022-01-28 12:53:30,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-28 12:53:30,272 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:30,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:30,284 INFO L225 Difference]: With dead ends: 8298 [2022-01-28 12:53:30,284 INFO L226 Difference]: Without dead ends: 7982 [2022-01-28 12:53:30,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=226, Invalid=644, Unknown=0, NotChecked=0, Total=870 [2022-01-28 12:53:30,285 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 198 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 1451 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 [2022-01-28 12:53:30,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 1451 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:30,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7982 states. [2022-01-28 12:53:30,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7982 to 6933. [2022-01-28 12:53:30,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6933 states, 6932 states have (on average 2.70066358915176) internal successors, (18721), 6932 states have internal predecessors, (18721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:30,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6933 states to 6933 states and 18721 transitions. [2022-01-28 12:53:30,393 INFO L78 Accepts]: Start accepts. Automaton has 6933 states and 18721 transitions. Word has length 91 [2022-01-28 12:53:30,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:30,393 INFO L470 AbstractCegarLoop]: Abstraction has 6933 states and 18721 transitions. [2022-01-28 12:53:30,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:30,393 INFO L276 IsEmpty]: Start isEmpty. Operand 6933 states and 18721 transitions. [2022-01-28 12:53:30,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:30,402 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:30,402 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:30,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-28 12:53:30,403 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:30,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:30,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1195150278, now seen corresponding path program 17 times [2022-01-28 12:53:30,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:30,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928751563] [2022-01-28 12:53:30,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:30,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:30,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:30,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:30,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:30,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928751563] [2022-01-28 12:53:30,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928751563] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:30,503 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:30,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:30,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119092984] [2022-01-28 12:53:30,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:30,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:30,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:30,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:30,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:30,504 INFO L87 Difference]: Start difference. First operand 6933 states and 18721 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:30,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:30,780 INFO L93 Difference]: Finished difference Result 8261 states and 22219 transitions. [2022-01-28 12:53:30,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-28 12:53:30,781 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:30,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:30,793 INFO L225 Difference]: With dead ends: 8261 [2022-01-28 12:53:30,793 INFO L226 Difference]: Without dead ends: 7976 [2022-01-28 12:53:30,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=197, Invalid=615, Unknown=0, NotChecked=0, Total=812 [2022-01-28 12:53:30,794 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 176 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 1693 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:30,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 1693 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:30,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7976 states. [2022-01-28 12:53:30,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7976 to 6937. [2022-01-28 12:53:30,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6937 states, 6936 states have (on average 2.7001153402537486) internal successors, (18728), 6936 states have internal predecessors, (18728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:30,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6937 states to 6937 states and 18728 transitions. [2022-01-28 12:53:30,903 INFO L78 Accepts]: Start accepts. Automaton has 6937 states and 18728 transitions. Word has length 91 [2022-01-28 12:53:30,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:30,903 INFO L470 AbstractCegarLoop]: Abstraction has 6937 states and 18728 transitions. [2022-01-28 12:53:30,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:30,903 INFO L276 IsEmpty]: Start isEmpty. Operand 6937 states and 18728 transitions. [2022-01-28 12:53:30,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:30,912 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:30,912 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:30,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-28 12:53:30,913 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:30,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:30,913 INFO L85 PathProgramCache]: Analyzing trace with hash 776968624, now seen corresponding path program 18 times [2022-01-28 12:53:30,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:30,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196342764] [2022-01-28 12:53:30,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:30,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:30,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:31,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:31,025 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:31,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196342764] [2022-01-28 12:53:31,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196342764] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:31,025 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:31,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:31,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940571882] [2022-01-28 12:53:31,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:31,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:31,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:31,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:31,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:31,026 INFO L87 Difference]: Start difference. First operand 6937 states and 18728 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:31,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:31,260 INFO L93 Difference]: Finished difference Result 8158 states and 21955 transitions. [2022-01-28 12:53:31,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-28 12:53:31,260 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:31,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:31,274 INFO L225 Difference]: With dead ends: 8158 [2022-01-28 12:53:31,274 INFO L226 Difference]: Without dead ends: 7907 [2022-01-28 12:53:31,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-01-28 12:53:31,275 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 129 mSDsluCounter, 1540 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 1735 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 [2022-01-28 12:53:31,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 1735 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:31,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7907 states. [2022-01-28 12:53:31,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7907 to 6941. [2022-01-28 12:53:31,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 6940 states have (on average 2.6995677233429394) internal successors, (18735), 6940 states have internal predecessors, (18735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:31,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 18735 transitions. [2022-01-28 12:53:31,389 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 18735 transitions. Word has length 91 [2022-01-28 12:53:31,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:31,389 INFO L470 AbstractCegarLoop]: Abstraction has 6941 states and 18735 transitions. [2022-01-28 12:53:31,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:31,389 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 18735 transitions. [2022-01-28 12:53:31,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:31,398 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:31,398 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:31,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-28 12:53:31,398 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:31,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:31,399 INFO L85 PathProgramCache]: Analyzing trace with hash -2025177238, now seen corresponding path program 19 times [2022-01-28 12:53:31,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:31,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34608631] [2022-01-28 12:53:31,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:31,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:31,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:31,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:31,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34608631] [2022-01-28 12:53:31,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34608631] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:31,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:31,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:31,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673304166] [2022-01-28 12:53:31,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:31,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:31,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:31,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:31,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:31,490 INFO L87 Difference]: Start difference. First operand 6941 states and 18735 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:31,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:31,731 INFO L93 Difference]: Finished difference Result 8129 states and 21873 transitions. [2022-01-28 12:53:31,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-28 12:53:31,731 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:31,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:31,744 INFO L225 Difference]: With dead ends: 8129 [2022-01-28 12:53:31,744 INFO L226 Difference]: Without dead ends: 7863 [2022-01-28 12:53:31,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2022-01-28 12:53:31,745 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 128 mSDsluCounter, 1353 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1552 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:31,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 1552 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:31,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7863 states. [2022-01-28 12:53:31,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7863 to 6929. [2022-01-28 12:53:31,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6929 states, 6928 states have (on average 2.700635103926097) internal successors, (18710), 6928 states have internal predecessors, (18710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:31,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6929 states to 6929 states and 18710 transitions. [2022-01-28 12:53:31,870 INFO L78 Accepts]: Start accepts. Automaton has 6929 states and 18710 transitions. Word has length 91 [2022-01-28 12:53:31,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:31,870 INFO L470 AbstractCegarLoop]: Abstraction has 6929 states and 18710 transitions. [2022-01-28 12:53:31,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:31,870 INFO L276 IsEmpty]: Start isEmpty. Operand 6929 states and 18710 transitions. [2022-01-28 12:53:31,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:31,879 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:31,879 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] [2022-01-28 12:53:31,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-28 12:53:31,880 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:31,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:31,880 INFO L85 PathProgramCache]: Analyzing trace with hash 489635850, now seen corresponding path program 20 times [2022-01-28 12:53:31,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:31,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136072641] [2022-01-28 12:53:31,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:31,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:31,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:31,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:31,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:31,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136072641] [2022-01-28 12:53:31,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136072641] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:31,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:31,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:31,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450345367] [2022-01-28 12:53:31,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:31,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:31,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:31,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:31,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:31,972 INFO L87 Difference]: Start difference. First operand 6929 states and 18710 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:32,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:32,256 INFO L93 Difference]: Finished difference Result 8258 states and 22222 transitions. [2022-01-28 12:53:32,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-28 12:53:32,257 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:32,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:32,269 INFO L225 Difference]: With dead ends: 8258 [2022-01-28 12:53:32,270 INFO L226 Difference]: Without dead ends: 7979 [2022-01-28 12:53:32,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=217, Invalid=653, Unknown=0, NotChecked=0, Total=870 [2022-01-28 12:53:32,270 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 179 mSDsluCounter, 1495 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:32,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 1695 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:32,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7979 states. [2022-01-28 12:53:32,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7979 to 6937. [2022-01-28 12:53:32,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6937 states, 6936 states have (on average 2.7001153402537486) internal successors, (18728), 6936 states have internal predecessors, (18728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:32,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6937 states to 6937 states and 18728 transitions. [2022-01-28 12:53:32,378 INFO L78 Accepts]: Start accepts. Automaton has 6937 states and 18728 transitions. Word has length 91 [2022-01-28 12:53:32,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:32,379 INFO L470 AbstractCegarLoop]: Abstraction has 6937 states and 18728 transitions. [2022-01-28 12:53:32,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:32,379 INFO L276 IsEmpty]: Start isEmpty. Operand 6937 states and 18728 transitions. [2022-01-28 12:53:32,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:32,388 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:32,388 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] [2022-01-28 12:53:32,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-28 12:53:32,389 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:32,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:32,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1733597944, now seen corresponding path program 21 times [2022-01-28 12:53:32,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:32,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637892338] [2022-01-28 12:53:32,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:32,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:32,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:32,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:32,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:32,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637892338] [2022-01-28 12:53:32,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637892338] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:32,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:32,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:32,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162426617] [2022-01-28 12:53:32,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:32,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:32,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:32,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:32,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:32,476 INFO L87 Difference]: Start difference. First operand 6937 states and 18728 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:32,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:32,708 INFO L93 Difference]: Finished difference Result 8206 states and 22087 transitions. [2022-01-28 12:53:32,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-28 12:53:32,709 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:32,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:32,721 INFO L225 Difference]: With dead ends: 8206 [2022-01-28 12:53:32,721 INFO L226 Difference]: Without dead ends: 7955 [2022-01-28 12:53:32,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=156, Invalid=494, Unknown=0, NotChecked=0, Total=650 [2022-01-28 12:53:32,722 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 147 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:32,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 1523 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:32,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7955 states. [2022-01-28 12:53:32,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7955 to 6941. [2022-01-28 12:53:32,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 6940 states have (on average 2.6995677233429394) internal successors, (18735), 6940 states have internal predecessors, (18735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:32,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 18735 transitions. [2022-01-28 12:53:32,828 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 18735 transitions. Word has length 91 [2022-01-28 12:53:32,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:32,828 INFO L470 AbstractCegarLoop]: Abstraction has 6941 states and 18735 transitions. [2022-01-28 12:53:32,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:32,828 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 18735 transitions. [2022-01-28 12:53:32,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:32,837 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:32,837 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:32,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-28 12:53:32,838 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:32,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:32,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1068547918, now seen corresponding path program 22 times [2022-01-28 12:53:32,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:32,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410121157] [2022-01-28 12:53:32,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:32,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:32,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:32,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:32,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:32,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410121157] [2022-01-28 12:53:32,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410121157] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:32,921 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:32,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:32,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848876641] [2022-01-28 12:53:32,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:32,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:32,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:32,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:32,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:32,922 INFO L87 Difference]: Start difference. First operand 6941 states and 18735 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:33,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:33,153 INFO L93 Difference]: Finished difference Result 8177 states and 22005 transitions. [2022-01-28 12:53:33,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-28 12:53:33,153 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:33,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:33,166 INFO L225 Difference]: With dead ends: 8177 [2022-01-28 12:53:33,166 INFO L226 Difference]: Without dead ends: 7915 [2022-01-28 12:53:33,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=415, Unknown=0, NotChecked=0, Total=552 [2022-01-28 12:53:33,167 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 136 mSDsluCounter, 1754 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 1941 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:33,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 1941 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:33,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7915 states. [2022-01-28 12:53:33,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7915 to 6933. [2022-01-28 12:53:33,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6933 states, 6932 states have (on average 2.7000865551067514) internal successors, (18717), 6932 states have internal predecessors, (18717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:33,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6933 states to 6933 states and 18717 transitions. [2022-01-28 12:53:33,279 INFO L78 Accepts]: Start accepts. Automaton has 6933 states and 18717 transitions. Word has length 91 [2022-01-28 12:53:33,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:33,279 INFO L470 AbstractCegarLoop]: Abstraction has 6933 states and 18717 transitions. [2022-01-28 12:53:33,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:33,279 INFO L276 IsEmpty]: Start isEmpty. Operand 6933 states and 18717 transitions. [2022-01-28 12:53:33,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:33,288 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:33,288 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:33,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-28 12:53:33,289 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:33,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:33,289 INFO L85 PathProgramCache]: Analyzing trace with hash -2060866488, now seen corresponding path program 23 times [2022-01-28 12:53:33,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:33,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992508537] [2022-01-28 12:53:33,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:33,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:33,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:33,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:33,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:33,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992508537] [2022-01-28 12:53:33,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992508537] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:33,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:33,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:33,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975929530] [2022-01-28 12:53:33,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:33,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:33,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:33,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:33,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:33,417 INFO L87 Difference]: Start difference. First operand 6933 states and 18717 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:33,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:33,728 INFO L93 Difference]: Finished difference Result 8261 states and 22215 transitions. [2022-01-28 12:53:33,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-28 12:53:33,729 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:33,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:33,741 INFO L225 Difference]: With dead ends: 8261 [2022-01-28 12:53:33,742 INFO L226 Difference]: Without dead ends: 7976 [2022-01-28 12:53:33,742 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=193, Invalid=563, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:53:33,743 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 179 mSDsluCounter, 1555 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 1748 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 [2022-01-28 12:53:33,743 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 1748 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:33,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7976 states. [2022-01-28 12:53:33,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7976 to 6937. [2022-01-28 12:53:33,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6937 states, 6936 states have (on average 2.699538638985006) internal successors, (18724), 6936 states have internal predecessors, (18724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:33,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6937 states to 6937 states and 18724 transitions. [2022-01-28 12:53:33,849 INFO L78 Accepts]: Start accepts. Automaton has 6937 states and 18724 transitions. Word has length 91 [2022-01-28 12:53:33,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:33,849 INFO L470 AbstractCegarLoop]: Abstraction has 6937 states and 18724 transitions. [2022-01-28 12:53:33,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:33,849 INFO L276 IsEmpty]: Start isEmpty. Operand 6937 states and 18724 transitions. [2022-01-28 12:53:33,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:33,858 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:33,858 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:33,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-28 12:53:33,859 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:33,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:33,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1815919154, now seen corresponding path program 24 times [2022-01-28 12:53:33,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:33,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388961222] [2022-01-28 12:53:33,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:33,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:33,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:33,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:33,987 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:33,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388961222] [2022-01-28 12:53:33,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388961222] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:33,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:33,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:33,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686944141] [2022-01-28 12:53:33,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:33,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:33,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:33,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:33,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:33,988 INFO L87 Difference]: Start difference. First operand 6937 states and 18724 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:34,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:34,216 INFO L93 Difference]: Finished difference Result 8170 states and 21984 transitions. [2022-01-28 12:53:34,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-28 12:53:34,216 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:34,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:34,228 INFO L225 Difference]: With dead ends: 8170 [2022-01-28 12:53:34,228 INFO L226 Difference]: Without dead ends: 7919 [2022-01-28 12:53:34,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2022-01-28 12:53:34,229 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 140 mSDsluCounter, 1328 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1529 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 [2022-01-28 12:53:34,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 1529 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:34,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7919 states. [2022-01-28 12:53:34,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7919 to 6941. [2022-01-28 12:53:34,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 6940 states have (on average 2.698991354466859) internal successors, (18731), 6940 states have internal predecessors, (18731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:34,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 18731 transitions. [2022-01-28 12:53:34,332 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 18731 transitions. Word has length 91 [2022-01-28 12:53:34,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:34,332 INFO L470 AbstractCegarLoop]: Abstraction has 6941 states and 18731 transitions. [2022-01-28 12:53:34,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:34,333 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 18731 transitions. [2022-01-28 12:53:34,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:34,341 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:34,342 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:34,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-28 12:53:34,342 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:34,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:34,342 INFO L85 PathProgramCache]: Analyzing trace with hash -986226708, now seen corresponding path program 25 times [2022-01-28 12:53:34,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:34,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881467959] [2022-01-28 12:53:34,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:34,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:34,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:34,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:34,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:34,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881467959] [2022-01-28 12:53:34,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881467959] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:34,440 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:34,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:34,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318041291] [2022-01-28 12:53:34,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:34,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:34,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:34,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:34,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:34,441 INFO L87 Difference]: Start difference. First operand 6941 states and 18731 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:34,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:34,671 INFO L93 Difference]: Finished difference Result 8129 states and 21869 transitions. [2022-01-28 12:53:34,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-28 12:53:34,672 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:34,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:34,684 INFO L225 Difference]: With dead ends: 8129 [2022-01-28 12:53:34,684 INFO L226 Difference]: Without dead ends: 7859 [2022-01-28 12:53:34,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2022-01-28 12:53:34,685 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 133 mSDsluCounter, 1889 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 2073 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:34,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 2073 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:34,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7859 states. [2022-01-28 12:53:34,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7859 to 6925. [2022-01-28 12:53:34,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6925 states, 6924 states have (on average 2.7006065857885617) internal successors, (18699), 6924 states have internal predecessors, (18699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:34,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6925 states to 6925 states and 18699 transitions. [2022-01-28 12:53:34,814 INFO L78 Accepts]: Start accepts. Automaton has 6925 states and 18699 transitions. Word has length 91 [2022-01-28 12:53:34,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:34,814 INFO L470 AbstractCegarLoop]: Abstraction has 6925 states and 18699 transitions. [2022-01-28 12:53:34,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:34,814 INFO L276 IsEmpty]: Start isEmpty. Operand 6925 states and 18699 transitions. [2022-01-28 12:53:34,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:34,823 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:34,823 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] [2022-01-28 12:53:34,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-28 12:53:34,823 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:34,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:34,824 INFO L85 PathProgramCache]: Analyzing trace with hash -2013636544, now seen corresponding path program 26 times [2022-01-28 12:53:34,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:34,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553748665] [2022-01-28 12:53:34,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:34,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:34,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:34,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:34,907 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:34,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553748665] [2022-01-28 12:53:34,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553748665] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:34,907 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:34,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:34,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023231544] [2022-01-28 12:53:34,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:34,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:34,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:34,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:34,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:34,908 INFO L87 Difference]: Start difference. First operand 6925 states and 18699 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:35,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:35,210 INFO L93 Difference]: Finished difference Result 8222 states and 22123 transitions. [2022-01-28 12:53:35,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-28 12:53:35,215 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:35,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:35,227 INFO L225 Difference]: With dead ends: 8222 [2022-01-28 12:53:35,227 INFO L226 Difference]: Without dead ends: 7943 [2022-01-28 12:53:35,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=238, Invalid=754, Unknown=0, NotChecked=0, Total=992 [2022-01-28 12:53:35,228 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 242 mSDsluCounter, 1899 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 2120 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:35,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 2120 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:35,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7943 states. [2022-01-28 12:53:35,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7943 to 6937. [2022-01-28 12:53:35,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6937 states, 6936 states have (on average 2.7001153402537486) internal successors, (18728), 6936 states have internal predecessors, (18728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:35,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6937 states to 6937 states and 18728 transitions. [2022-01-28 12:53:35,333 INFO L78 Accepts]: Start accepts. Automaton has 6937 states and 18728 transitions. Word has length 91 [2022-01-28 12:53:35,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:35,333 INFO L470 AbstractCegarLoop]: Abstraction has 6937 states and 18728 transitions. [2022-01-28 12:53:35,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:35,333 INFO L276 IsEmpty]: Start isEmpty. Operand 6937 states and 18728 transitions. [2022-01-28 12:53:35,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:35,342 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:35,342 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:35,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-28 12:53:35,342 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:35,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:35,343 INFO L85 PathProgramCache]: Analyzing trace with hash -769674450, now seen corresponding path program 27 times [2022-01-28 12:53:35,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:35,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588203504] [2022-01-28 12:53:35,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:35,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:35,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:35,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:35,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:35,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588203504] [2022-01-28 12:53:35,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588203504] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:35,428 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:35,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:35,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580015064] [2022-01-28 12:53:35,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:35,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:35,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:35,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:35,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:35,429 INFO L87 Difference]: Start difference. First operand 6937 states and 18728 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:35,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:35,684 INFO L93 Difference]: Finished difference Result 8158 states and 21955 transitions. [2022-01-28 12:53:35,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-28 12:53:35,684 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:35,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:35,696 INFO L225 Difference]: With dead ends: 8158 [2022-01-28 12:53:35,696 INFO L226 Difference]: Without dead ends: 7907 [2022-01-28 12:53:35,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2022-01-28 12:53:35,697 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 198 mSDsluCounter, 1415 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 1641 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:35,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 1641 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:35,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7907 states. [2022-01-28 12:53:35,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7907 to 6941. [2022-01-28 12:53:35,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 6940 states have (on average 2.6995677233429394) internal successors, (18735), 6940 states have internal predecessors, (18735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:35,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 18735 transitions. [2022-01-28 12:53:35,802 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 18735 transitions. Word has length 91 [2022-01-28 12:53:35,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:35,802 INFO L470 AbstractCegarLoop]: Abstraction has 6941 states and 18735 transitions. [2022-01-28 12:53:35,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:35,802 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 18735 transitions. [2022-01-28 12:53:35,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:35,811 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:35,811 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] [2022-01-28 12:53:35,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-28 12:53:35,811 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:35,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:35,811 INFO L85 PathProgramCache]: Analyzing trace with hash 723146984, now seen corresponding path program 28 times [2022-01-28 12:53:35,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:35,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583251678] [2022-01-28 12:53:35,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:35,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:35,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:35,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:35,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583251678] [2022-01-28 12:53:35,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583251678] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:35,896 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:35,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:35,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750883119] [2022-01-28 12:53:35,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:35,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:35,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:35,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:35,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:35,897 INFO L87 Difference]: Start difference. First operand 6941 states and 18735 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:36,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:36,155 INFO L93 Difference]: Finished difference Result 8129 states and 21873 transitions. [2022-01-28 12:53:36,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-28 12:53:36,167 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:36,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:36,181 INFO L225 Difference]: With dead ends: 8129 [2022-01-28 12:53:36,181 INFO L226 Difference]: Without dead ends: 7867 [2022-01-28 12:53:36,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2022-01-28 12:53:36,182 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 175 mSDsluCounter, 2059 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 2270 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:36,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 2270 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:36,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7867 states. [2022-01-28 12:53:36,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7867 to 6933. [2022-01-28 12:53:36,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6933 states, 6932 states have (on average 2.7000865551067514) internal successors, (18717), 6932 states have internal predecessors, (18717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:36,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6933 states to 6933 states and 18717 transitions. [2022-01-28 12:53:36,295 INFO L78 Accepts]: Start accepts. Automaton has 6933 states and 18717 transitions. Word has length 91 [2022-01-28 12:53:36,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:36,295 INFO L470 AbstractCegarLoop]: Abstraction has 6933 states and 18717 transitions. [2022-01-28 12:53:36,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:36,295 INFO L276 IsEmpty]: Start isEmpty. Operand 6933 states and 18717 transitions. [2022-01-28 12:53:36,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:36,304 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:36,304 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] [2022-01-28 12:53:36,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-28 12:53:36,305 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:36,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:36,305 INFO L85 PathProgramCache]: Analyzing trace with hash -269171586, now seen corresponding path program 29 times [2022-01-28 12:53:36,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:36,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166830169] [2022-01-28 12:53:36,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:36,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:36,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:36,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:36,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:36,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166830169] [2022-01-28 12:53:36,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166830169] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:36,394 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:36,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:36,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057917547] [2022-01-28 12:53:36,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:36,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:36,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:36,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:36,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:36,395 INFO L87 Difference]: Start difference. First operand 6933 states and 18717 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:36,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:36,650 INFO L93 Difference]: Finished difference Result 8189 states and 22017 transitions. [2022-01-28 12:53:36,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-28 12:53:36,650 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:36,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:36,663 INFO L225 Difference]: With dead ends: 8189 [2022-01-28 12:53:36,663 INFO L226 Difference]: Without dead ends: 7904 [2022-01-28 12:53:36,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=207, Invalid=549, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:53:36,664 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 210 mSDsluCounter, 1480 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 1701 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:36,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 1701 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:36,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7904 states. [2022-01-28 12:53:36,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7904 to 6937. [2022-01-28 12:53:36,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6937 states, 6936 states have (on average 2.699538638985006) internal successors, (18724), 6936 states have internal predecessors, (18724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:36,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6937 states to 6937 states and 18724 transitions. [2022-01-28 12:53:36,772 INFO L78 Accepts]: Start accepts. Automaton has 6937 states and 18724 transitions. Word has length 91 [2022-01-28 12:53:36,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:36,773 INFO L470 AbstractCegarLoop]: Abstraction has 6937 states and 18724 transitions. [2022-01-28 12:53:36,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:36,773 INFO L276 IsEmpty]: Start isEmpty. Operand 6937 states and 18724 transitions. [2022-01-28 12:53:36,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:36,782 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:36,782 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:36,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-28 12:53:36,782 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:36,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:36,783 INFO L85 PathProgramCache]: Analyzing trace with hash -687353240, now seen corresponding path program 30 times [2022-01-28 12:53:36,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:36,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756678354] [2022-01-28 12:53:36,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:36,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:36,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:36,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:36,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:36,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756678354] [2022-01-28 12:53:36,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756678354] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:36,869 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:36,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:36,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562266233] [2022-01-28 12:53:36,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:36,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:36,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:36,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:36,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:36,870 INFO L87 Difference]: Start difference. First operand 6937 states and 18724 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:37,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:37,124 INFO L93 Difference]: Finished difference Result 8122 states and 21852 transitions. [2022-01-28 12:53:37,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-28 12:53:37,124 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:37,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:37,137 INFO L225 Difference]: With dead ends: 8122 [2022-01-28 12:53:37,137 INFO L226 Difference]: Without dead ends: 7871 [2022-01-28 12:53:37,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2022-01-28 12:53:37,138 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 195 mSDsluCounter, 1829 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 2046 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 [2022-01-28 12:53:37,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 2046 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:37,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7871 states. [2022-01-28 12:53:37,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7871 to 6941. [2022-01-28 12:53:37,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 6940 states have (on average 2.698991354466859) internal successors, (18731), 6940 states have internal predecessors, (18731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:37,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 18731 transitions. [2022-01-28 12:53:37,242 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 18731 transitions. Word has length 91 [2022-01-28 12:53:37,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:37,243 INFO L470 AbstractCegarLoop]: Abstraction has 6941 states and 18731 transitions. [2022-01-28 12:53:37,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:37,243 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 18731 transitions. [2022-01-28 12:53:37,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:37,252 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:37,252 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:37,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-28 12:53:37,252 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:37,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:37,252 INFO L85 PathProgramCache]: Analyzing trace with hash 805468194, now seen corresponding path program 31 times [2022-01-28 12:53:37,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:37,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428065099] [2022-01-28 12:53:37,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:37,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:37,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:37,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:37,331 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:37,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428065099] [2022-01-28 12:53:37,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428065099] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:37,331 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:37,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:37,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422977840] [2022-01-28 12:53:37,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:37,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:37,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:37,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:37,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:37,332 INFO L87 Difference]: Start difference. First operand 6941 states and 18731 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:37,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:37,543 INFO L93 Difference]: Finished difference Result 8093 states and 21770 transitions. [2022-01-28 12:53:37,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-28 12:53:37,543 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:37,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:37,556 INFO L225 Difference]: With dead ends: 8093 [2022-01-28 12:53:37,556 INFO L226 Difference]: Without dead ends: 7827 [2022-01-28 12:53:37,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=166, Invalid=484, Unknown=0, NotChecked=0, Total=650 [2022-01-28 12:53:37,557 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 206 mSDsluCounter, 1219 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 1441 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 [2022-01-28 12:53:37,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 1441 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:37,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7827 states. [2022-01-28 12:53:37,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7827 to 6929. [2022-01-28 12:53:37,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6929 states, 6928 states have (on average 2.7000577367205545) internal successors, (18706), 6928 states have internal predecessors, (18706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:37,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6929 states to 6929 states and 18706 transitions. [2022-01-28 12:53:37,699 INFO L78 Accepts]: Start accepts. Automaton has 6929 states and 18706 transitions. Word has length 91 [2022-01-28 12:53:37,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:37,699 INFO L470 AbstractCegarLoop]: Abstraction has 6929 states and 18706 transitions. [2022-01-28 12:53:37,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:37,700 INFO L276 IsEmpty]: Start isEmpty. Operand 6929 states and 18706 transitions. [2022-01-28 12:53:37,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:37,709 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:37,709 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] [2022-01-28 12:53:37,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-28 12:53:37,709 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:37,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:37,711 INFO L85 PathProgramCache]: Analyzing trace with hash 853696490, now seen corresponding path program 32 times [2022-01-28 12:53:37,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:37,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509275120] [2022-01-28 12:53:37,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:37,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:37,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:37,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:37,788 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:37,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509275120] [2022-01-28 12:53:37,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509275120] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:37,788 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:37,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:37,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289694092] [2022-01-28 12:53:37,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:37,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:37,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:37,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:37,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:37,789 INFO L87 Difference]: Start difference. First operand 6929 states and 18706 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:38,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:38,148 INFO L93 Difference]: Finished difference Result 8651 states and 23106 transitions. [2022-01-28 12:53:38,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-28 12:53:38,149 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:38,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:38,162 INFO L225 Difference]: With dead ends: 8651 [2022-01-28 12:53:38,162 INFO L226 Difference]: Without dead ends: 8344 [2022-01-28 12:53:38,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=320, Invalid=1012, Unknown=0, NotChecked=0, Total=1332 [2022-01-28 12:53:38,163 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 573 mSDsluCounter, 2046 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 2324 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:38,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [573 Valid, 2324 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:38,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8344 states. [2022-01-28 12:53:38,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8344 to 6877. [2022-01-28 12:53:38,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6877 states, 6876 states have (on average 2.6961896451425247) internal successors, (18539), 6876 states have internal predecessors, (18539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:38,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6877 states to 6877 states and 18539 transitions. [2022-01-28 12:53:38,280 INFO L78 Accepts]: Start accepts. Automaton has 6877 states and 18539 transitions. Word has length 91 [2022-01-28 12:53:38,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:38,281 INFO L470 AbstractCegarLoop]: Abstraction has 6877 states and 18539 transitions. [2022-01-28 12:53:38,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:38,281 INFO L276 IsEmpty]: Start isEmpty. Operand 6877 states and 18539 transitions. [2022-01-28 12:53:38,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:38,290 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:38,290 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] [2022-01-28 12:53:38,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-28 12:53:38,290 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:38,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:38,291 INFO L85 PathProgramCache]: Analyzing trace with hash -974686014, now seen corresponding path program 33 times [2022-01-28 12:53:38,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:38,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841432633] [2022-01-28 12:53:38,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:38,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:38,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:38,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:38,364 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:38,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841432633] [2022-01-28 12:53:38,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841432633] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:38,364 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:38,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:38,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39208409] [2022-01-28 12:53:38,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:38,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:38,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:38,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:38,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:38,365 INFO L87 Difference]: Start difference. First operand 6877 states and 18539 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:38,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:38,666 INFO L93 Difference]: Finished difference Result 8114 states and 21798 transitions. [2022-01-28 12:53:38,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-28 12:53:38,666 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:38,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:38,681 INFO L225 Difference]: With dead ends: 8114 [2022-01-28 12:53:38,682 INFO L226 Difference]: Without dead ends: 7835 [2022-01-28 12:53:38,682 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=245, Invalid=877, Unknown=0, NotChecked=0, Total=1122 [2022-01-28 12:53:38,682 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 321 mSDsluCounter, 2242 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 2485 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:38,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [321 Valid, 2485 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:38,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7835 states. [2022-01-28 12:53:38,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7835 to 6881. [2022-01-28 12:53:38,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6881 states, 6880 states have (on average 2.6956395348837208) internal successors, (18546), 6880 states have internal predecessors, (18546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:38,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6881 states to 6881 states and 18546 transitions. [2022-01-28 12:53:38,776 INFO L78 Accepts]: Start accepts. Automaton has 6881 states and 18546 transitions. Word has length 91 [2022-01-28 12:53:38,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:38,776 INFO L470 AbstractCegarLoop]: Abstraction has 6881 states and 18546 transitions. [2022-01-28 12:53:38,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:38,776 INFO L276 IsEmpty]: Start isEmpty. Operand 6881 states and 18546 transitions. [2022-01-28 12:53:38,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:38,784 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:38,784 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] [2022-01-28 12:53:38,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-28 12:53:38,785 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:38,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:38,785 INFO L85 PathProgramCache]: Analyzing trace with hash 269276080, now seen corresponding path program 34 times [2022-01-28 12:53:38,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:38,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017048050] [2022-01-28 12:53:38,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:38,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:38,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:38,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:38,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:38,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017048050] [2022-01-28 12:53:38,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017048050] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:38,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:38,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:38,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196724291] [2022-01-28 12:53:38,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:38,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:38,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:38,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:38,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:38,883 INFO L87 Difference]: Start difference. First operand 6881 states and 18546 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:39,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:39,100 INFO L93 Difference]: Finished difference Result 8034 states and 21586 transitions. [2022-01-28 12:53:39,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-28 12:53:39,100 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:39,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:39,112 INFO L225 Difference]: With dead ends: 8034 [2022-01-28 12:53:39,113 INFO L226 Difference]: Without dead ends: 7783 [2022-01-28 12:53:39,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=539, Unknown=0, NotChecked=0, Total=702 [2022-01-28 12:53:39,113 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 265 mSDsluCounter, 1697 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 1942 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:39,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [265 Valid, 1942 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:39,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7783 states. [2022-01-28 12:53:39,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7783 to 6885. [2022-01-28 12:53:39,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6885 states, 6884 states have (on average 2.6950900639163278) internal successors, (18553), 6884 states have internal predecessors, (18553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:39,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6885 states to 6885 states and 18553 transitions. [2022-01-28 12:53:39,224 INFO L78 Accepts]: Start accepts. Automaton has 6885 states and 18553 transitions. Word has length 91 [2022-01-28 12:53:39,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:39,224 INFO L470 AbstractCegarLoop]: Abstraction has 6885 states and 18553 transitions. [2022-01-28 12:53:39,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:39,224 INFO L276 IsEmpty]: Start isEmpty. Operand 6885 states and 18553 transitions. [2022-01-28 12:53:39,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:39,233 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:39,234 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] [2022-01-28 12:53:39,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-28 12:53:39,234 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:39,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:39,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1762097514, now seen corresponding path program 35 times [2022-01-28 12:53:39,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:39,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366372237] [2022-01-28 12:53:39,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:39,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:39,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:39,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:39,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:39,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366372237] [2022-01-28 12:53:39,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366372237] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:39,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:39,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:39,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874578618] [2022-01-28 12:53:39,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:39,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:39,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:39,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:39,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:39,312 INFO L87 Difference]: Start difference. First operand 6885 states and 18553 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:39,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:39,505 INFO L93 Difference]: Finished difference Result 7997 states and 21482 transitions. [2022-01-28 12:53:39,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 12:53:39,505 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:39,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:39,517 INFO L225 Difference]: With dead ends: 7997 [2022-01-28 12:53:39,517 INFO L226 Difference]: Without dead ends: 7719 [2022-01-28 12:53:39,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2022-01-28 12:53:39,517 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 237 mSDsluCounter, 1664 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 1903 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 [2022-01-28 12:53:39,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 1903 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:39,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7719 states. [2022-01-28 12:53:39,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7719 to 6845. [2022-01-28 12:53:39,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6845 states, 6844 states have (on average 2.695353594389246) internal successors, (18447), 6844 states have internal predecessors, (18447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:39,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6845 states to 6845 states and 18447 transitions. [2022-01-28 12:53:39,616 INFO L78 Accepts]: Start accepts. Automaton has 6845 states and 18447 transitions. Word has length 91 [2022-01-28 12:53:39,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:39,616 INFO L470 AbstractCegarLoop]: Abstraction has 6845 states and 18447 transitions. [2022-01-28 12:53:39,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:39,616 INFO L276 IsEmpty]: Start isEmpty. Operand 6845 states and 18447 transitions. [2022-01-28 12:53:39,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:39,625 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:39,625 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:39,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-28 12:53:39,625 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:39,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:39,625 INFO L85 PathProgramCache]: Analyzing trace with hash 629696244, now seen corresponding path program 1 times [2022-01-28 12:53:39,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:39,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290855751] [2022-01-28 12:53:39,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:39,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:39,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:39,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:39,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:39,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290855751] [2022-01-28 12:53:39,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290855751] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:39,701 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:39,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:39,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444720596] [2022-01-28 12:53:39,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:39,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:39,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:39,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:39,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:39,702 INFO L87 Difference]: Start difference. First operand 6845 states and 18447 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:40,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:40,053 INFO L93 Difference]: Finished difference Result 8662 states and 23037 transitions. [2022-01-28 12:53:40,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-28 12:53:40,054 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:40,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:40,067 INFO L225 Difference]: With dead ends: 8662 [2022-01-28 12:53:40,067 INFO L226 Difference]: Without dead ends: 8340 [2022-01-28 12:53:40,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=320, Invalid=1012, Unknown=0, NotChecked=0, Total=1332 [2022-01-28 12:53:40,068 INFO L933 BasicCegarLoop]: 359 mSDtfsCounter, 484 mSDsluCounter, 2323 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 2606 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 [2022-01-28 12:53:40,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [484 Valid, 2606 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:40,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8340 states. [2022-01-28 12:53:40,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8340 to 6753. [2022-01-28 12:53:40,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6753 states, 6752 states have (on average 2.696830568720379) internal successors, (18209), 6752 states have internal predecessors, (18209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:40,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6753 states to 6753 states and 18209 transitions. [2022-01-28 12:53:40,178 INFO L78 Accepts]: Start accepts. Automaton has 6753 states and 18209 transitions. Word has length 91 [2022-01-28 12:53:40,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:40,178 INFO L470 AbstractCegarLoop]: Abstraction has 6753 states and 18209 transitions. [2022-01-28 12:53:40,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:40,178 INFO L276 IsEmpty]: Start isEmpty. Operand 6753 states and 18209 transitions. [2022-01-28 12:53:40,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:40,187 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:40,187 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] [2022-01-28 12:53:40,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-28 12:53:40,187 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:40,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:40,187 INFO L85 PathProgramCache]: Analyzing trace with hash 2025620248, now seen corresponding path program 2 times [2022-01-28 12:53:40,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:40,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8231490] [2022-01-28 12:53:40,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:40,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:40,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:40,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:40,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:40,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8231490] [2022-01-28 12:53:40,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8231490] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:40,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:40,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:40,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987578351] [2022-01-28 12:53:40,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:40,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:40,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:40,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:40,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:40,277 INFO L87 Difference]: Start difference. First operand 6753 states and 18209 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:40,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:40,584 INFO L93 Difference]: Finished difference Result 8011 states and 21504 transitions. [2022-01-28 12:53:40,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-28 12:53:40,584 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:40,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:40,597 INFO L225 Difference]: With dead ends: 8011 [2022-01-28 12:53:40,597 INFO L226 Difference]: Without dead ends: 7720 [2022-01-28 12:53:40,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=245, Invalid=877, Unknown=0, NotChecked=0, Total=1122 [2022-01-28 12:53:40,598 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 252 mSDsluCounter, 2493 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 2749 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 [2022-01-28 12:53:40,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [252 Valid, 2749 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:40,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7720 states. [2022-01-28 12:53:40,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7720 to 6757. [2022-01-28 12:53:40,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6757 states, 6756 states have (on average 2.6962699822380105) internal successors, (18216), 6756 states have internal predecessors, (18216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:40,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6757 states to 6757 states and 18216 transitions. [2022-01-28 12:53:40,716 INFO L78 Accepts]: Start accepts. Automaton has 6757 states and 18216 transitions. Word has length 91 [2022-01-28 12:53:40,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:40,716 INFO L470 AbstractCegarLoop]: Abstraction has 6757 states and 18216 transitions. [2022-01-28 12:53:40,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:40,716 INFO L276 IsEmpty]: Start isEmpty. Operand 6757 states and 18216 transitions. [2022-01-28 12:53:40,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:40,725 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:40,725 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] [2022-01-28 12:53:40,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-28 12:53:40,725 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:40,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:40,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1607438594, now seen corresponding path program 3 times [2022-01-28 12:53:40,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:40,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104914348] [2022-01-28 12:53:40,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:40,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:40,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:40,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:40,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:40,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104914348] [2022-01-28 12:53:40,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104914348] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:40,813 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:40,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:40,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134231858] [2022-01-28 12:53:40,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:40,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:40,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:40,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:40,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:40,813 INFO L87 Difference]: Start difference. First operand 6757 states and 18216 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:41,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:41,049 INFO L93 Difference]: Finished difference Result 7908 states and 21240 transitions. [2022-01-28 12:53:41,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 12:53:41,050 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:41,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:41,063 INFO L225 Difference]: With dead ends: 7908 [2022-01-28 12:53:41,063 INFO L226 Difference]: Without dead ends: 7651 [2022-01-28 12:53:41,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2022-01-28 12:53:41,064 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 194 mSDsluCounter, 1886 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 2148 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:41,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [194 Valid, 2148 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:41,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7651 states. [2022-01-28 12:53:41,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7651 to 6761. [2022-01-28 12:53:41,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6761 states, 6760 states have (on average 2.6957100591715975) internal successors, (18223), 6760 states have internal predecessors, (18223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:41,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6761 states to 6761 states and 18223 transitions. [2022-01-28 12:53:41,180 INFO L78 Accepts]: Start accepts. Automaton has 6761 states and 18223 transitions. Word has length 91 [2022-01-28 12:53:41,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:41,180 INFO L470 AbstractCegarLoop]: Abstraction has 6761 states and 18223 transitions. [2022-01-28 12:53:41,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:41,181 INFO L276 IsEmpty]: Start isEmpty. Operand 6761 states and 18223 transitions. [2022-01-28 12:53:41,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:41,190 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:41,190 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:41,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-28 12:53:41,191 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:41,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:41,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1194707268, now seen corresponding path program 4 times [2022-01-28 12:53:41,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:41,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818745163] [2022-01-28 12:53:41,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:41,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:41,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:41,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:41,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:41,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818745163] [2022-01-28 12:53:41,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818745163] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:41,280 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:41,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:41,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510258308] [2022-01-28 12:53:41,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:41,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:41,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:41,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:41,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:41,281 INFO L87 Difference]: Start difference. First operand 6761 states and 18223 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:41,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:41,531 INFO L93 Difference]: Finished difference Result 7879 states and 21158 transitions. [2022-01-28 12:53:41,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-28 12:53:41,531 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:41,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:41,544 INFO L225 Difference]: With dead ends: 7879 [2022-01-28 12:53:41,545 INFO L226 Difference]: Without dead ends: 7607 [2022-01-28 12:53:41,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=539, Unknown=0, NotChecked=0, Total=702 [2022-01-28 12:53:41,545 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 203 mSDsluCounter, 1617 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 1891 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:41,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 1891 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:41,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7607 states. [2022-01-28 12:53:41,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7607 to 6735. [2022-01-28 12:53:41,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6735 states, 6734 states have (on average 2.696762696762697) internal successors, (18160), 6734 states have internal predecessors, (18160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:41,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6735 states to 6735 states and 18160 transitions. [2022-01-28 12:53:41,659 INFO L78 Accepts]: Start accepts. Automaton has 6735 states and 18160 transitions. Word has length 91 [2022-01-28 12:53:41,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:41,660 INFO L470 AbstractCegarLoop]: Abstraction has 6735 states and 18160 transitions. [2022-01-28 12:53:41,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:41,660 INFO L276 IsEmpty]: Start isEmpty. Operand 6735 states and 18160 transitions. [2022-01-28 12:53:41,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:41,669 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:41,669 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:41,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-28 12:53:41,669 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:41,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:41,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1850666310, now seen corresponding path program 5 times [2022-01-28 12:53:41,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:41,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805848508] [2022-01-28 12:53:41,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:41,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:41,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:41,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:41,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:41,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805848508] [2022-01-28 12:53:41,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805848508] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:41,763 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:41,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:41,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536007833] [2022-01-28 12:53:41,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:41,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:41,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:41,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:41,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:41,763 INFO L87 Difference]: Start difference. First operand 6735 states and 18160 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:42,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:42,033 INFO L93 Difference]: Finished difference Result 8008 states and 21503 transitions. [2022-01-28 12:53:42,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-28 12:53:42,034 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:42,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:42,046 INFO L225 Difference]: With dead ends: 8008 [2022-01-28 12:53:42,047 INFO L226 Difference]: Without dead ends: 7723 [2022-01-28 12:53:42,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=207, Invalid=549, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:53:42,047 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 193 mSDsluCounter, 1593 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 1831 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:42,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 1831 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:42,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7723 states. [2022-01-28 12:53:42,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7723 to 6743. [2022-01-28 12:53:42,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6743 states, 6742 states have (on average 2.6962325719371107) internal successors, (18178), 6742 states have internal predecessors, (18178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:42,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6743 states to 6743 states and 18178 transitions. [2022-01-28 12:53:42,156 INFO L78 Accepts]: Start accepts. Automaton has 6743 states and 18178 transitions. Word has length 91 [2022-01-28 12:53:42,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:42,156 INFO L470 AbstractCegarLoop]: Abstraction has 6743 states and 18178 transitions. [2022-01-28 12:53:42,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:42,157 INFO L276 IsEmpty]: Start isEmpty. Operand 6743 states and 18178 transitions. [2022-01-28 12:53:42,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:42,166 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:42,166 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] [2022-01-28 12:53:42,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-28 12:53:42,166 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:42,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:42,166 INFO L85 PathProgramCache]: Analyzing trace with hash -606704216, now seen corresponding path program 6 times [2022-01-28 12:53:42,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:42,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224635777] [2022-01-28 12:53:42,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:42,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:42,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:42,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:42,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:42,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224635777] [2022-01-28 12:53:42,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224635777] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:42,255 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:42,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:42,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808008020] [2022-01-28 12:53:42,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:42,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:42,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:42,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:42,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:42,256 INFO L87 Difference]: Start difference. First operand 6743 states and 18178 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:42,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:42,518 INFO L93 Difference]: Finished difference Result 7956 states and 21368 transitions. [2022-01-28 12:53:42,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-28 12:53:42,519 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:42,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:42,532 INFO L225 Difference]: With dead ends: 7956 [2022-01-28 12:53:42,532 INFO L226 Difference]: Without dead ends: 7699 [2022-01-28 12:53:42,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=166, Invalid=484, Unknown=0, NotChecked=0, Total=650 [2022-01-28 12:53:42,533 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 160 mSDsluCounter, 1788 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 2024 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:42,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 2024 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:42,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7699 states. [2022-01-28 12:53:42,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7699 to 6747. [2022-01-28 12:53:42,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6747 states, 6746 states have (on average 2.6956715090423953) internal successors, (18185), 6746 states have internal predecessors, (18185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:42,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6747 states to 6747 states and 18185 transitions. [2022-01-28 12:53:42,635 INFO L78 Accepts]: Start accepts. Automaton has 6747 states and 18185 transitions. Word has length 91 [2022-01-28 12:53:42,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:42,635 INFO L470 AbstractCegarLoop]: Abstraction has 6747 states and 18185 transitions. [2022-01-28 12:53:42,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:42,635 INFO L276 IsEmpty]: Start isEmpty. Operand 6747 states and 18185 transitions. [2022-01-28 12:53:42,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:42,644 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:42,644 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] [2022-01-28 12:53:42,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-28 12:53:42,644 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:42,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:42,645 INFO L85 PathProgramCache]: Analyzing trace with hash 886117218, now seen corresponding path program 7 times [2022-01-28 12:53:42,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:42,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326596848] [2022-01-28 12:53:42,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:42,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:42,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:42,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:42,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:42,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326596848] [2022-01-28 12:53:42,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326596848] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:42,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:42,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:42,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804569357] [2022-01-28 12:53:42,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:42,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:42,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:42,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:42,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:42,727 INFO L87 Difference]: Start difference. First operand 6747 states and 18185 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:42,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:42,956 INFO L93 Difference]: Finished difference Result 7927 states and 21286 transitions. [2022-01-28 12:53:42,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-28 12:53:42,957 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:42,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:42,969 INFO L225 Difference]: With dead ends: 7927 [2022-01-28 12:53:42,969 INFO L226 Difference]: Without dead ends: 7659 [2022-01-28 12:53:42,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2022-01-28 12:53:42,969 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 165 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1750 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 [2022-01-28 12:53:42,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 1750 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:42,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7659 states. [2022-01-28 12:53:43,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7659 to 6739. [2022-01-28 12:53:43,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6739 states, 6738 states have (on average 2.6962006530127636) internal successors, (18167), 6738 states have internal predecessors, (18167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:43,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6739 states to 6739 states and 18167 transitions. [2022-01-28 12:53:43,071 INFO L78 Accepts]: Start accepts. Automaton has 6739 states and 18167 transitions. Word has length 91 [2022-01-28 12:53:43,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:43,071 INFO L470 AbstractCegarLoop]: Abstraction has 6739 states and 18167 transitions. [2022-01-28 12:53:43,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:43,072 INFO L276 IsEmpty]: Start isEmpty. Operand 6739 states and 18167 transitions. [2022-01-28 12:53:43,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:43,080 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:43,080 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] [2022-01-28 12:53:43,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-28 12:53:43,080 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:43,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:43,081 INFO L85 PathProgramCache]: Analyzing trace with hash -106201352, now seen corresponding path program 8 times [2022-01-28 12:53:43,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:43,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694998290] [2022-01-28 12:53:43,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:43,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:43,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:43,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:43,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:43,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694998290] [2022-01-28 12:53:43,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694998290] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:43,179 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:43,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:43,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566111890] [2022-01-28 12:53:43,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:43,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:43,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:43,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:43,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:43,180 INFO L87 Difference]: Start difference. First operand 6739 states and 18167 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:43,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:43,480 INFO L93 Difference]: Finished difference Result 8011 states and 21496 transitions. [2022-01-28 12:53:43,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-28 12:53:43,481 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:43,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:43,493 INFO L225 Difference]: With dead ends: 8011 [2022-01-28 12:53:43,493 INFO L226 Difference]: Without dead ends: 7720 [2022-01-28 12:53:43,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=241, Invalid=815, Unknown=0, NotChecked=0, Total=1056 [2022-01-28 12:53:43,494 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 215 mSDsluCounter, 2039 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 2269 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:43,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 2269 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:43,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7720 states. [2022-01-28 12:53:43,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7720 to 6743. [2022-01-28 12:53:43,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6743 states, 6742 states have (on average 2.6956392761791754) internal successors, (18174), 6742 states have internal predecessors, (18174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:43,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6743 states to 6743 states and 18174 transitions. [2022-01-28 12:53:43,603 INFO L78 Accepts]: Start accepts. Automaton has 6743 states and 18174 transitions. Word has length 91 [2022-01-28 12:53:43,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:43,603 INFO L470 AbstractCegarLoop]: Abstraction has 6743 states and 18174 transitions. [2022-01-28 12:53:43,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:43,604 INFO L276 IsEmpty]: Start isEmpty. Operand 6743 states and 18174 transitions. [2022-01-28 12:53:43,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:43,631 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:43,631 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] [2022-01-28 12:53:43,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-28 12:53:43,631 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:43,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:43,631 INFO L85 PathProgramCache]: Analyzing trace with hash -524383006, now seen corresponding path program 9 times [2022-01-28 12:53:43,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:43,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089832636] [2022-01-28 12:53:43,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:43,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:43,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:43,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:43,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:43,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089832636] [2022-01-28 12:53:43,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089832636] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:43,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:43,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:43,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655208385] [2022-01-28 12:53:43,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:43,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:43,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:43,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:43,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:43,715 INFO L87 Difference]: Start difference. First operand 6743 states and 18174 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:43,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:43,979 INFO L93 Difference]: Finished difference Result 7920 states and 21265 transitions. [2022-01-28 12:53:43,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-28 12:53:43,979 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:43,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:43,993 INFO L225 Difference]: With dead ends: 7920 [2022-01-28 12:53:43,993 INFO L226 Difference]: Without dead ends: 7663 [2022-01-28 12:53:43,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2022-01-28 12:53:43,994 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 159 mSDsluCounter, 1905 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 2138 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:43,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 2138 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:44,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7663 states. [2022-01-28 12:53:44,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7663 to 6747. [2022-01-28 12:53:44,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6747 states, 6746 states have (on average 2.6950785650756) internal successors, (18181), 6746 states have internal predecessors, (18181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:44,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6747 states to 6747 states and 18181 transitions. [2022-01-28 12:53:44,115 INFO L78 Accepts]: Start accepts. Automaton has 6747 states and 18181 transitions. Word has length 91 [2022-01-28 12:53:44,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:44,115 INFO L470 AbstractCegarLoop]: Abstraction has 6747 states and 18181 transitions. [2022-01-28 12:53:44,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:44,115 INFO L276 IsEmpty]: Start isEmpty. Operand 6747 states and 18181 transitions. [2022-01-28 12:53:44,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:44,125 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:44,125 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] [2022-01-28 12:53:44,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-28 12:53:44,125 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:44,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:44,126 INFO L85 PathProgramCache]: Analyzing trace with hash 968438428, now seen corresponding path program 10 times [2022-01-28 12:53:44,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:44,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717678986] [2022-01-28 12:53:44,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:44,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:44,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:44,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:44,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717678986] [2022-01-28 12:53:44,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717678986] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:44,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:44,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:44,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444747632] [2022-01-28 12:53:44,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:44,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:44,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:44,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:44,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:44,223 INFO L87 Difference]: Start difference. First operand 6747 states and 18181 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:44,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:44,464 INFO L93 Difference]: Finished difference Result 7879 states and 21150 transitions. [2022-01-28 12:53:44,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-28 12:53:44,465 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:44,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:44,478 INFO L225 Difference]: With dead ends: 7879 [2022-01-28 12:53:44,478 INFO L226 Difference]: Without dead ends: 7603 [2022-01-28 12:53:44,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2022-01-28 12:53:44,478 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 171 mSDsluCounter, 1730 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 1962 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:44,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 1962 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:44,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7603 states. [2022-01-28 12:53:44,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7603 to 6717. [2022-01-28 12:53:44,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6717 states, 6716 states have (on average 2.6966944609886836) internal successors, (18111), 6716 states have internal predecessors, (18111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:44,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6717 states to 6717 states and 18111 transitions. [2022-01-28 12:53:44,586 INFO L78 Accepts]: Start accepts. Automaton has 6717 states and 18111 transitions. Word has length 91 [2022-01-28 12:53:44,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:44,586 INFO L470 AbstractCegarLoop]: Abstraction has 6717 states and 18111 transitions. [2022-01-28 12:53:44,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:44,586 INFO L276 IsEmpty]: Start isEmpty. Operand 6717 states and 18111 transitions. [2022-01-28 12:53:44,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:44,595 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:44,595 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:44,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-28 12:53:44,595 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:44,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:44,595 INFO L85 PathProgramCache]: Analyzing trace with hash 712233108, now seen corresponding path program 11 times [2022-01-28 12:53:44,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:44,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112753955] [2022-01-28 12:53:44,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:44,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:44,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:44,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:44,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:44,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112753955] [2022-01-28 12:53:44,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112753955] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:44,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:44,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:44,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260315305] [2022-01-28 12:53:44,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:44,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:44,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:44,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:44,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:44,678 INFO L87 Difference]: Start difference. First operand 6717 states and 18111 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:44,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:44,997 INFO L93 Difference]: Finished difference Result 8104 states and 21751 transitions. [2022-01-28 12:53:44,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-28 12:53:44,997 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:44,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:45,010 INFO L225 Difference]: With dead ends: 8104 [2022-01-28 12:53:45,010 INFO L226 Difference]: Without dead ends: 7791 [2022-01-28 12:53:45,010 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=226, Invalid=644, Unknown=0, NotChecked=0, Total=870 [2022-01-28 12:53:45,011 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 190 mSDsluCounter, 1381 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 1593 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:45,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 1593 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:45,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7791 states. [2022-01-28 12:53:45,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7791 to 6725. [2022-01-28 12:53:45,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6725 states, 6724 states have (on average 2.696162998215348) internal successors, (18129), 6724 states have internal predecessors, (18129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:45,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6725 states to 6725 states and 18129 transitions. [2022-01-28 12:53:45,125 INFO L78 Accepts]: Start accepts. Automaton has 6725 states and 18129 transitions. Word has length 91 [2022-01-28 12:53:45,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:45,126 INFO L470 AbstractCegarLoop]: Abstraction has 6725 states and 18129 transitions. [2022-01-28 12:53:45,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:45,126 INFO L276 IsEmpty]: Start isEmpty. Operand 6725 states and 18129 transitions. [2022-01-28 12:53:45,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:45,135 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:45,135 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] [2022-01-28 12:53:45,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-28 12:53:45,135 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:45,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:45,136 INFO L85 PathProgramCache]: Analyzing trace with hash -456059060, now seen corresponding path program 12 times [2022-01-28 12:53:45,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:45,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137552419] [2022-01-28 12:53:45,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:45,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:45,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:45,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:45,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:45,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137552419] [2022-01-28 12:53:45,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137552419] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:45,219 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:45,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:45,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147316854] [2022-01-28 12:53:45,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:45,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:45,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:45,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:45,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:45,219 INFO L87 Difference]: Start difference. First operand 6725 states and 18129 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:45,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:45,484 INFO L93 Difference]: Finished difference Result 8076 states and 21682 transitions. [2022-01-28 12:53:45,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-28 12:53:45,484 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:45,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:45,497 INFO L225 Difference]: With dead ends: 8076 [2022-01-28 12:53:45,497 INFO L226 Difference]: Without dead ends: 7791 [2022-01-28 12:53:45,498 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=197, Invalid=615, Unknown=0, NotChecked=0, Total=812 [2022-01-28 12:53:45,498 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 162 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 1461 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:45,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 1461 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:45,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7791 states. [2022-01-28 12:53:45,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7791 to 6729. [2022-01-28 12:53:45,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6729 states, 6728 states have (on average 2.6956004756242566) internal successors, (18136), 6728 states have internal predecessors, (18136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:45,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6729 states to 6729 states and 18136 transitions. [2022-01-28 12:53:45,615 INFO L78 Accepts]: Start accepts. Automaton has 6729 states and 18136 transitions. Word has length 91 [2022-01-28 12:53:45,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:45,615 INFO L470 AbstractCegarLoop]: Abstraction has 6729 states and 18136 transitions. [2022-01-28 12:53:45,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:45,615 INFO L276 IsEmpty]: Start isEmpty. Operand 6729 states and 18136 transitions. [2022-01-28 12:53:45,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:45,625 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:45,625 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:45,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-28 12:53:45,626 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:45,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:45,626 INFO L85 PathProgramCache]: Analyzing trace with hash 787903034, now seen corresponding path program 13 times [2022-01-28 12:53:45,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:45,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485099955] [2022-01-28 12:53:45,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:45,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:45,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:45,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:45,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:45,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485099955] [2022-01-28 12:53:45,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485099955] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:45,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:45,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:45,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465733956] [2022-01-28 12:53:45,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:45,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:45,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:45,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:45,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:45,718 INFO L87 Difference]: Start difference. First operand 6729 states and 18136 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:45,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:45,954 INFO L93 Difference]: Finished difference Result 7996 states and 21470 transitions. [2022-01-28 12:53:45,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-28 12:53:45,955 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:45,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:45,968 INFO L225 Difference]: With dead ends: 7996 [2022-01-28 12:53:45,968 INFO L226 Difference]: Without dead ends: 7739 [2022-01-28 12:53:45,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2022-01-28 12:53:45,969 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 123 mSDsluCounter, 1421 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1631 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:45,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 1631 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:45,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7739 states. [2022-01-28 12:53:46,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7739 to 6733. [2022-01-28 12:53:46,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6733 states, 6732 states have (on average 2.6950386215092097) internal successors, (18143), 6732 states have internal predecessors, (18143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:46,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6733 states to 6733 states and 18143 transitions. [2022-01-28 12:53:46,080 INFO L78 Accepts]: Start accepts. Automaton has 6733 states and 18143 transitions. Word has length 91 [2022-01-28 12:53:46,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:46,081 INFO L470 AbstractCegarLoop]: Abstraction has 6733 states and 18143 transitions. [2022-01-28 12:53:46,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:46,081 INFO L276 IsEmpty]: Start isEmpty. Operand 6733 states and 18143 transitions. [2022-01-28 12:53:46,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:46,089 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:46,089 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:46,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-01-28 12:53:46,090 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:46,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:46,090 INFO L85 PathProgramCache]: Analyzing trace with hash -2014242828, now seen corresponding path program 14 times [2022-01-28 12:53:46,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:46,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178754772] [2022-01-28 12:53:46,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:46,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:46,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:46,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:46,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:46,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178754772] [2022-01-28 12:53:46,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178754772] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:46,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:46,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:46,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469309376] [2022-01-28 12:53:46,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:46,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:46,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:46,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:46,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:46,185 INFO L87 Difference]: Start difference. First operand 6733 states and 18143 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:46,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:46,411 INFO L93 Difference]: Finished difference Result 7959 states and 21366 transitions. [2022-01-28 12:53:46,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-28 12:53:46,411 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:46,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:46,424 INFO L225 Difference]: With dead ends: 7959 [2022-01-28 12:53:46,424 INFO L226 Difference]: Without dead ends: 7687 [2022-01-28 12:53:46,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-01-28 12:53:46,425 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 123 mSDsluCounter, 1522 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1724 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 [2022-01-28 12:53:46,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 1724 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:46,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7687 states. [2022-01-28 12:53:46,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7687 to 6721. [2022-01-28 12:53:46,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6721 states, 6720 states have (on average 2.6961309523809525) internal successors, (18118), 6720 states have internal predecessors, (18118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:46,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6721 states to 6721 states and 18118 transitions. [2022-01-28 12:53:46,533 INFO L78 Accepts]: Start accepts. Automaton has 6721 states and 18118 transitions. Word has length 91 [2022-01-28 12:53:46,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:46,533 INFO L470 AbstractCegarLoop]: Abstraction has 6721 states and 18118 transitions. [2022-01-28 12:53:46,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:46,533 INFO L276 IsEmpty]: Start isEmpty. Operand 6721 states and 18118 transitions. [2022-01-28 12:53:46,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:46,542 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:46,542 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:46,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-01-28 12:53:46,542 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:46,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:46,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1391839194, now seen corresponding path program 15 times [2022-01-28 12:53:46,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:46,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446601861] [2022-01-28 12:53:46,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:46,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:46,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:46,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:46,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:46,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446601861] [2022-01-28 12:53:46,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446601861] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:46,618 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:46,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:46,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903172774] [2022-01-28 12:53:46,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:46,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:46,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:46,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:46,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:46,619 INFO L87 Difference]: Start difference. First operand 6721 states and 18118 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:46,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:46,896 INFO L93 Difference]: Finished difference Result 8024 states and 21539 transitions. [2022-01-28 12:53:46,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-28 12:53:46,897 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:46,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:46,909 INFO L225 Difference]: With dead ends: 8024 [2022-01-28 12:53:46,909 INFO L226 Difference]: Without dead ends: 7739 [2022-01-28 12:53:46,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=196, Invalid=616, Unknown=0, NotChecked=0, Total=812 [2022-01-28 12:53:46,910 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 155 mSDsluCounter, 1794 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 1999 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 [2022-01-28 12:53:46,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 1999 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:46,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7739 states. [2022-01-28 12:53:46,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7739 to 6729. [2022-01-28 12:53:47,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6729 states, 6728 states have (on average 2.6956004756242566) internal successors, (18136), 6728 states have internal predecessors, (18136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:47,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6729 states to 6729 states and 18136 transitions. [2022-01-28 12:53:47,012 INFO L78 Accepts]: Start accepts. Automaton has 6729 states and 18136 transitions. Word has length 91 [2022-01-28 12:53:47,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:47,013 INFO L470 AbstractCegarLoop]: Abstraction has 6729 states and 18136 transitions. [2022-01-28 12:53:47,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:47,013 INFO L276 IsEmpty]: Start isEmpty. Operand 6729 states and 18136 transitions. [2022-01-28 12:53:47,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:47,021 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:47,022 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] [2022-01-28 12:53:47,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-01-28 12:53:47,022 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:47,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:47,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1659166008, now seen corresponding path program 16 times [2022-01-28 12:53:47,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:47,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299435903] [2022-01-28 12:53:47,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:47,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:47,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:47,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:47,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:47,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299435903] [2022-01-28 12:53:47,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299435903] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:47,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:47,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:47,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076977887] [2022-01-28 12:53:47,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:47,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:47,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:47,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:47,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:47,114 INFO L87 Difference]: Start difference. First operand 6729 states and 18136 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:47,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:47,350 INFO L93 Difference]: Finished difference Result 7972 states and 21404 transitions. [2022-01-28 12:53:47,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-28 12:53:47,351 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:47,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:47,363 INFO L225 Difference]: With dead ends: 7972 [2022-01-28 12:53:47,363 INFO L226 Difference]: Without dead ends: 7715 [2022-01-28 12:53:47,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2022-01-28 12:53:47,364 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 131 mSDsluCounter, 1486 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 1691 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:47,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 1691 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:47,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7715 states. [2022-01-28 12:53:47,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7715 to 6733. [2022-01-28 12:53:47,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6733 states, 6732 states have (on average 2.6950386215092097) internal successors, (18143), 6732 states have internal predecessors, (18143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:47,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6733 states to 6733 states and 18143 transitions. [2022-01-28 12:53:47,478 INFO L78 Accepts]: Start accepts. Automaton has 6733 states and 18143 transitions. Word has length 91 [2022-01-28 12:53:47,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:47,478 INFO L470 AbstractCegarLoop]: Abstraction has 6733 states and 18143 transitions. [2022-01-28 12:53:47,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:47,478 INFO L276 IsEmpty]: Start isEmpty. Operand 6733 states and 18143 transitions. [2022-01-28 12:53:47,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:47,488 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:47,488 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:47,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-01-28 12:53:47,488 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:47,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:47,489 INFO L85 PathProgramCache]: Analyzing trace with hash -166344574, now seen corresponding path program 17 times [2022-01-28 12:53:47,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:47,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844482263] [2022-01-28 12:53:47,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:47,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:47,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:47,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:47,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:47,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844482263] [2022-01-28 12:53:47,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844482263] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:47,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:47,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:47,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432467614] [2022-01-28 12:53:47,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:47,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:47,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:47,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:47,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:47,589 INFO L87 Difference]: Start difference. First operand 6733 states and 18143 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:47,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:47,839 INFO L93 Difference]: Finished difference Result 7943 states and 21322 transitions. [2022-01-28 12:53:47,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-28 12:53:47,840 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:47,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:47,853 INFO L225 Difference]: With dead ends: 7943 [2022-01-28 12:53:47,853 INFO L226 Difference]: Without dead ends: 7675 [2022-01-28 12:53:47,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2022-01-28 12:53:47,855 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 125 mSDsluCounter, 1718 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1915 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:47,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 1915 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:47,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7675 states. [2022-01-28 12:53:47,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7675 to 6725. [2022-01-28 12:53:47,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6725 states, 6724 states have (on average 2.6955681142177275) internal successors, (18125), 6724 states have internal predecessors, (18125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:47,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6725 states to 6725 states and 18125 transitions. [2022-01-28 12:53:47,969 INFO L78 Accepts]: Start accepts. Automaton has 6725 states and 18125 transitions. Word has length 91 [2022-01-28 12:53:47,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:47,969 INFO L470 AbstractCegarLoop]: Abstraction has 6725 states and 18125 transitions. [2022-01-28 12:53:47,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:47,969 INFO L276 IsEmpty]: Start isEmpty. Operand 6725 states and 18125 transitions. [2022-01-28 12:53:47,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:47,979 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:47,979 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] [2022-01-28 12:53:47,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-01-28 12:53:47,979 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:47,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:47,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1158663144, now seen corresponding path program 18 times [2022-01-28 12:53:47,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:47,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634297426] [2022-01-28 12:53:47,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:47,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:47,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:48,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:48,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:48,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634297426] [2022-01-28 12:53:48,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634297426] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:48,057 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:48,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:48,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935604373] [2022-01-28 12:53:48,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:48,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:48,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:48,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:48,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:48,058 INFO L87 Difference]: Start difference. First operand 6725 states and 18125 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:48,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:48,344 INFO L93 Difference]: Finished difference Result 8011 states and 21488 transitions. [2022-01-28 12:53:48,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-28 12:53:48,344 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:48,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:48,356 INFO L225 Difference]: With dead ends: 8011 [2022-01-28 12:53:48,356 INFO L226 Difference]: Without dead ends: 7720 [2022-01-28 12:53:48,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=220, Invalid=710, Unknown=0, NotChecked=0, Total=930 [2022-01-28 12:53:48,357 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 178 mSDsluCounter, 1804 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 1998 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:48,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 1998 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:48,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7720 states. [2022-01-28 12:53:48,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7720 to 6729. [2022-01-28 12:53:48,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6729 states, 6728 states have (on average 2.6950059453032105) internal successors, (18132), 6728 states have internal predecessors, (18132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:48,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6729 states to 6729 states and 18132 transitions. [2022-01-28 12:53:48,460 INFO L78 Accepts]: Start accepts. Automaton has 6729 states and 18132 transitions. Word has length 91 [2022-01-28 12:53:48,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:48,460 INFO L470 AbstractCegarLoop]: Abstraction has 6729 states and 18132 transitions. [2022-01-28 12:53:48,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:48,460 INFO L276 IsEmpty]: Start isEmpty. Operand 6729 states and 18132 transitions. [2022-01-28 12:53:48,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:48,469 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:48,469 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:48,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-01-28 12:53:48,469 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:48,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:48,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1576844798, now seen corresponding path program 19 times [2022-01-28 12:53:48,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:48,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270214260] [2022-01-28 12:53:48,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:48,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:48,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:48,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:48,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:48,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270214260] [2022-01-28 12:53:48,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270214260] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:48,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:48,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:48,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167212262] [2022-01-28 12:53:48,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:48,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:48,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:48,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:48,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:48,550 INFO L87 Difference]: Start difference. First operand 6729 states and 18132 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:48,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:48,762 INFO L93 Difference]: Finished difference Result 7932 states and 21290 transitions. [2022-01-28 12:53:48,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-28 12:53:48,763 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:48,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:48,773 INFO L225 Difference]: With dead ends: 7932 [2022-01-28 12:53:48,773 INFO L226 Difference]: Without dead ends: 7675 [2022-01-28 12:53:48,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=415, Unknown=0, NotChecked=0, Total=552 [2022-01-28 12:53:48,774 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 132 mSDsluCounter, 1680 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 1878 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 [2022-01-28 12:53:48,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 1878 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:48,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7675 states. [2022-01-28 12:53:48,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7675 to 6733. [2022-01-28 12:53:48,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6733 states, 6732 states have (on average 2.6944444444444446) internal successors, (18139), 6732 states have internal predecessors, (18139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:48,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6733 states to 6733 states and 18139 transitions. [2022-01-28 12:53:48,865 INFO L78 Accepts]: Start accepts. Automaton has 6733 states and 18139 transitions. Word has length 91 [2022-01-28 12:53:48,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:48,865 INFO L470 AbstractCegarLoop]: Abstraction has 6733 states and 18139 transitions. [2022-01-28 12:53:48,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:48,865 INFO L276 IsEmpty]: Start isEmpty. Operand 6733 states and 18139 transitions. [2022-01-28 12:53:48,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:48,873 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:48,873 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:48,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-01-28 12:53:48,873 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:48,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:48,873 INFO L85 PathProgramCache]: Analyzing trace with hash -84023364, now seen corresponding path program 20 times [2022-01-28 12:53:48,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:48,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547126769] [2022-01-28 12:53:48,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:48,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:48,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:48,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:48,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:48,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547126769] [2022-01-28 12:53:48,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547126769] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:48,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:48,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:48,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730374796] [2022-01-28 12:53:48,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:48,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:48,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:48,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:48,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:48,957 INFO L87 Difference]: Start difference. First operand 6733 states and 18139 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:49,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:49,200 INFO L93 Difference]: Finished difference Result 7879 states and 21142 transitions. [2022-01-28 12:53:49,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-28 12:53:49,200 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:49,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:49,212 INFO L225 Difference]: With dead ends: 7879 [2022-01-28 12:53:49,212 INFO L226 Difference]: Without dead ends: 7599 [2022-01-28 12:53:49,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=156, Invalid=494, Unknown=0, NotChecked=0, Total=650 [2022-01-28 12:53:49,215 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 133 mSDsluCounter, 1534 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 1729 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:49,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 1729 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:49,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7599 states. [2022-01-28 12:53:49,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7599 to 6709. [2022-01-28 12:53:49,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6709 states, 6708 states have (on average 2.6960345855694694) internal successors, (18085), 6708 states have internal predecessors, (18085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:49,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6709 states to 6709 states and 18085 transitions. [2022-01-28 12:53:49,316 INFO L78 Accepts]: Start accepts. Automaton has 6709 states and 18085 transitions. Word has length 91 [2022-01-28 12:53:49,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:49,316 INFO L470 AbstractCegarLoop]: Abstraction has 6709 states and 18085 transitions. [2022-01-28 12:53:49,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:49,317 INFO L276 IsEmpty]: Start isEmpty. Operand 6709 states and 18085 transitions. [2022-01-28 12:53:49,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:49,325 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:49,325 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:49,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-01-28 12:53:49,325 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:49,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:49,326 INFO L85 PathProgramCache]: Analyzing trace with hash 766843090, now seen corresponding path program 21 times [2022-01-28 12:53:49,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:49,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135495617] [2022-01-28 12:53:49,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:49,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:49,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:49,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:49,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:49,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135495617] [2022-01-28 12:53:49,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135495617] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:49,400 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:49,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:49,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647326364] [2022-01-28 12:53:49,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:49,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:49,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:49,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:49,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:49,401 INFO L87 Difference]: Start difference. First operand 6709 states and 18085 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:49,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:49,729 INFO L93 Difference]: Finished difference Result 8294 states and 22104 transitions. [2022-01-28 12:53:49,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-28 12:53:49,730 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:49,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:49,742 INFO L225 Difference]: With dead ends: 8294 [2022-01-28 12:53:49,742 INFO L226 Difference]: Without dead ends: 7953 [2022-01-28 12:53:49,742 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=283, Invalid=839, Unknown=0, NotChecked=0, Total=1122 [2022-01-28 12:53:49,743 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 396 mSDsluCounter, 2165 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 2421 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:49,743 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [396 Valid, 2421 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:49,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7953 states. [2022-01-28 12:53:49,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7953 to 6633. [2022-01-28 12:53:49,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6633 states, 6632 states have (on average 2.692400482509047) internal successors, (17856), 6632 states have internal predecessors, (17856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:49,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6633 states to 6633 states and 17856 transitions. [2022-01-28 12:53:49,860 INFO L78 Accepts]: Start accepts. Automaton has 6633 states and 17856 transitions. Word has length 91 [2022-01-28 12:53:49,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:49,860 INFO L470 AbstractCegarLoop]: Abstraction has 6633 states and 17856 transitions. [2022-01-28 12:53:49,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:49,861 INFO L276 IsEmpty]: Start isEmpty. Operand 6633 states and 17856 transitions. [2022-01-28 12:53:49,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:49,869 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:49,869 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:49,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-01-28 12:53:49,870 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:49,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:49,870 INFO L85 PathProgramCache]: Analyzing trace with hash 519941212, now seen corresponding path program 22 times [2022-01-28 12:53:49,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:49,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211292952] [2022-01-28 12:53:49,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:49,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:49,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:49,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:49,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:49,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211292952] [2022-01-28 12:53:49,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211292952] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:49,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:49,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:49,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769191317] [2022-01-28 12:53:49,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:49,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:49,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:49,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:49,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:49,950 INFO L87 Difference]: Start difference. First operand 6633 states and 17856 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:50,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:50,260 INFO L93 Difference]: Finished difference Result 7674 states and 20566 transitions. [2022-01-28 12:53:50,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-28 12:53:50,260 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:50,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:50,274 INFO L225 Difference]: With dead ends: 7674 [2022-01-28 12:53:50,274 INFO L226 Difference]: Without dead ends: 7361 [2022-01-28 12:53:50,274 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=247, Invalid=875, Unknown=0, NotChecked=0, Total=1122 [2022-01-28 12:53:50,274 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 233 mSDsluCounter, 2197 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 2418 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 [2022-01-28 12:53:50,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 2418 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:50,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7361 states. [2022-01-28 12:53:50,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7361 to 6637. [2022-01-28 12:53:50,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6637 states, 6636 states have (on average 2.6918324291742013) internal successors, (17863), 6636 states have internal predecessors, (17863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:50,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6637 states to 6637 states and 17863 transitions. [2022-01-28 12:53:50,384 INFO L78 Accepts]: Start accepts. Automaton has 6637 states and 17863 transitions. Word has length 91 [2022-01-28 12:53:50,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:50,384 INFO L470 AbstractCegarLoop]: Abstraction has 6637 states and 17863 transitions. [2022-01-28 12:53:50,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:50,384 INFO L276 IsEmpty]: Start isEmpty. Operand 6637 states and 17863 transitions. [2022-01-28 12:53:50,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:50,393 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:50,393 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:50,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-01-28 12:53:50,393 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:50,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:50,393 INFO L85 PathProgramCache]: Analyzing trace with hash -648350956, now seen corresponding path program 23 times [2022-01-28 12:53:50,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:50,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137693615] [2022-01-28 12:53:50,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:50,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:50,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:50,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:50,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:50,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137693615] [2022-01-28 12:53:50,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137693615] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:50,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:50,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:50,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639334114] [2022-01-28 12:53:50,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:50,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:50,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:50,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:50,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:50,468 INFO L87 Difference]: Start difference. First operand 6637 states and 17863 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:50,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:50,742 INFO L93 Difference]: Finished difference Result 7594 states and 20354 transitions. [2022-01-28 12:53:50,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-28 12:53:50,742 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:50,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:50,754 INFO L225 Difference]: With dead ends: 7594 [2022-01-28 12:53:50,755 INFO L226 Difference]: Without dead ends: 7309 [2022-01-28 12:53:50,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=186, Invalid=684, Unknown=0, NotChecked=0, Total=870 [2022-01-28 12:53:50,755 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 197 mSDsluCounter, 1754 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 1975 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 [2022-01-28 12:53:50,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 1975 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:50,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7309 states. [2022-01-28 12:53:50,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7309 to 6641. [2022-01-28 12:53:50,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6641 states, 6640 states have (on average 2.691265060240964) internal successors, (17870), 6640 states have internal predecessors, (17870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:50,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6641 states to 6641 states and 17870 transitions. [2022-01-28 12:53:50,853 INFO L78 Accepts]: Start accepts. Automaton has 6641 states and 17870 transitions. Word has length 91 [2022-01-28 12:53:50,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:50,853 INFO L470 AbstractCegarLoop]: Abstraction has 6641 states and 17870 transitions. [2022-01-28 12:53:50,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:50,853 INFO L276 IsEmpty]: Start isEmpty. Operand 6641 states and 17870 transitions. [2022-01-28 12:53:50,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:50,862 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:50,862 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] [2022-01-28 12:53:50,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-01-28 12:53:50,863 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:50,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:50,863 INFO L85 PathProgramCache]: Analyzing trace with hash 595611138, now seen corresponding path program 24 times [2022-01-28 12:53:50,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:50,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690006418] [2022-01-28 12:53:50,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:50,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:50,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:50,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:50,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:50,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690006418] [2022-01-28 12:53:50,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690006418] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:50,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:50,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:50,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375168095] [2022-01-28 12:53:50,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:50,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:50,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:50,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:50,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:50,943 INFO L87 Difference]: Start difference. First operand 6641 states and 17870 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:51,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:51,147 INFO L93 Difference]: Finished difference Result 7514 states and 20142 transitions. [2022-01-28 12:53:51,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-28 12:53:51,147 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:51,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:51,159 INFO L225 Difference]: With dead ends: 7514 [2022-01-28 12:53:51,159 INFO L226 Difference]: Without dead ends: 7257 [2022-01-28 12:53:51,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-01-28 12:53:51,159 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 157 mSDsluCounter, 1683 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 1900 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 [2022-01-28 12:53:51,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 1900 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:51,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7257 states. [2022-01-28 12:53:51,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7257 to 6645. [2022-01-28 12:53:51,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6645 states, 6644 states have (on average 2.6906983744732087) internal successors, (17877), 6644 states have internal predecessors, (17877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:51,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6645 states to 6645 states and 17877 transitions. [2022-01-28 12:53:51,261 INFO L78 Accepts]: Start accepts. Automaton has 6645 states and 17877 transitions. Word has length 91 [2022-01-28 12:53:51,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:51,262 INFO L470 AbstractCegarLoop]: Abstraction has 6645 states and 17877 transitions. [2022-01-28 12:53:51,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:51,262 INFO L276 IsEmpty]: Start isEmpty. Operand 6645 states and 17877 transitions. [2022-01-28 12:53:51,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:51,270 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:51,271 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] [2022-01-28 12:53:51,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-01-28 12:53:51,271 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:51,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:51,271 INFO L85 PathProgramCache]: Analyzing trace with hash 2088432572, now seen corresponding path program 25 times [2022-01-28 12:53:51,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:51,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266962941] [2022-01-28 12:53:51,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:51,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:51,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:51,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:51,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:51,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266962941] [2022-01-28 12:53:51,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266962941] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:51,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:51,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:51,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155612510] [2022-01-28 12:53:51,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:51,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:51,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:51,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:51,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:51,349 INFO L87 Difference]: Start difference. First operand 6645 states and 17877 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:51,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:51,554 INFO L93 Difference]: Finished difference Result 7469 states and 20016 transitions. [2022-01-28 12:53:51,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-28 12:53:51,555 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:51,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:51,565 INFO L225 Difference]: With dead ends: 7469 [2022-01-28 12:53:51,566 INFO L226 Difference]: Without dead ends: 7193 [2022-01-28 12:53:51,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=164, Invalid=436, Unknown=0, NotChecked=0, Total=600 [2022-01-28 12:53:51,566 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 151 mSDsluCounter, 1655 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 1866 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:51,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 1866 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:51,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7193 states. [2022-01-28 12:53:51,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7193 to 6617. [2022-01-28 12:53:51,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6617 states, 6616 states have (on average 2.6916565900846434) internal successors, (17808), 6616 states have internal predecessors, (17808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:51,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6617 states to 6617 states and 17808 transitions. [2022-01-28 12:53:51,658 INFO L78 Accepts]: Start accepts. Automaton has 6617 states and 17808 transitions. Word has length 91 [2022-01-28 12:53:51,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:51,659 INFO L470 AbstractCegarLoop]: Abstraction has 6617 states and 17808 transitions. [2022-01-28 12:53:51,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:51,659 INFO L276 IsEmpty]: Start isEmpty. Operand 6617 states and 17808 transitions. [2022-01-28 12:53:51,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:51,667 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:51,667 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] [2022-01-28 12:53:51,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-01-28 12:53:51,667 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:51,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:51,668 INFO L85 PathProgramCache]: Analyzing trace with hash 85978932, now seen corresponding path program 26 times [2022-01-28 12:53:51,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:51,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342214746] [2022-01-28 12:53:51,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:51,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:51,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:51,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:51,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:51,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342214746] [2022-01-28 12:53:51,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342214746] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:51,744 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:51,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:51,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983915498] [2022-01-28 12:53:51,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:51,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:51,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:51,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:51,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:51,745 INFO L87 Difference]: Start difference. First operand 6617 states and 17808 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:52,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:52,049 INFO L93 Difference]: Finished difference Result 7694 states and 20617 transitions. [2022-01-28 12:53:52,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-28 12:53:52,049 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:52,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:52,061 INFO L225 Difference]: With dead ends: 7694 [2022-01-28 12:53:52,061 INFO L226 Difference]: Without dead ends: 7381 [2022-01-28 12:53:52,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=229, Invalid=701, Unknown=0, NotChecked=0, Total=930 [2022-01-28 12:53:52,062 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 201 mSDsluCounter, 1777 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 1975 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 [2022-01-28 12:53:52,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 1975 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:52,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7381 states. [2022-01-28 12:53:52,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7381 to 6625. [2022-01-28 12:53:52,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6625 states, 6624 states have (on average 2.691123188405797) internal successors, (17826), 6624 states have internal predecessors, (17826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:52,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6625 states to 6625 states and 17826 transitions. [2022-01-28 12:53:52,164 INFO L78 Accepts]: Start accepts. Automaton has 6625 states and 17826 transitions. Word has length 91 [2022-01-28 12:53:52,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:52,164 INFO L470 AbstractCegarLoop]: Abstraction has 6625 states and 17826 transitions. [2022-01-28 12:53:52,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:52,164 INFO L276 IsEmpty]: Start isEmpty. Operand 6625 states and 17826 transitions. [2022-01-28 12:53:52,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:52,173 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:52,174 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:52,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-01-28 12:53:52,174 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:52,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:52,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1082313236, now seen corresponding path program 27 times [2022-01-28 12:53:52,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:52,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444316261] [2022-01-28 12:53:52,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:52,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:52,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:52,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:52,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:52,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444316261] [2022-01-28 12:53:52,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444316261] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:52,277 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:52,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:52,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748124444] [2022-01-28 12:53:52,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:52,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:52,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:52,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:52,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:52,278 INFO L87 Difference]: Start difference. First operand 6625 states and 17826 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:52,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:52,536 INFO L93 Difference]: Finished difference Result 7666 states and 20548 transitions. [2022-01-28 12:53:52,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-28 12:53:52,536 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:52,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:52,547 INFO L225 Difference]: With dead ends: 7666 [2022-01-28 12:53:52,547 INFO L226 Difference]: Without dead ends: 7381 [2022-01-28 12:53:52,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=176, Invalid=580, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:53:52,548 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 174 mSDsluCounter, 1342 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 1542 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:52,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 1542 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:52,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7381 states. [2022-01-28 12:53:52,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7381 to 6629. [2022-01-28 12:53:52,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6629 states, 6628 states have (on average 2.69055522027761) internal successors, (17833), 6628 states have internal predecessors, (17833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:52,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6629 states to 6629 states and 17833 transitions. [2022-01-28 12:53:52,668 INFO L78 Accepts]: Start accepts. Automaton has 6629 states and 17833 transitions. Word has length 91 [2022-01-28 12:53:52,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:52,668 INFO L470 AbstractCegarLoop]: Abstraction has 6629 states and 17833 transitions. [2022-01-28 12:53:52,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:52,668 INFO L276 IsEmpty]: Start isEmpty. Operand 6629 states and 17833 transitions. [2022-01-28 12:53:52,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:52,676 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:52,676 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] [2022-01-28 12:53:52,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-01-28 12:53:52,676 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:52,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:52,677 INFO L85 PathProgramCache]: Analyzing trace with hash 161648858, now seen corresponding path program 28 times [2022-01-28 12:53:52,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:52,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970812696] [2022-01-28 12:53:52,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:52,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:52,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:52,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:52,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:52,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970812696] [2022-01-28 12:53:52,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970812696] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:52,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:52,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:52,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621364595] [2022-01-28 12:53:52,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:52,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:52,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:52,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:52,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:52,761 INFO L87 Difference]: Start difference. First operand 6629 states and 17833 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:52,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:52,964 INFO L93 Difference]: Finished difference Result 7586 states and 20336 transitions. [2022-01-28 12:53:52,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-28 12:53:52,965 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:52,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:52,990 INFO L225 Difference]: With dead ends: 7586 [2022-01-28 12:53:52,991 INFO L226 Difference]: Without dead ends: 7329 [2022-01-28 12:53:52,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=130, Invalid=422, Unknown=0, NotChecked=0, Total=552 [2022-01-28 12:53:52,991 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 124 mSDsluCounter, 1470 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:52,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 1664 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:53,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7329 states. [2022-01-28 12:53:53,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7329 to 6633. [2022-01-28 12:53:53,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6633 states, 6632 states have (on average 2.689987937273824) internal successors, (17840), 6632 states have internal predecessors, (17840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:53,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6633 states to 6633 states and 17840 transitions. [2022-01-28 12:53:53,100 INFO L78 Accepts]: Start accepts. Automaton has 6633 states and 17840 transitions. Word has length 91 [2022-01-28 12:53:53,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:53,100 INFO L470 AbstractCegarLoop]: Abstraction has 6633 states and 17840 transitions. [2022-01-28 12:53:53,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:53,100 INFO L276 IsEmpty]: Start isEmpty. Operand 6633 states and 17840 transitions. [2022-01-28 12:53:53,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:53,109 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:53,110 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] [2022-01-28 12:53:53,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-01-28 12:53:53,110 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:53,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:53,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1654470292, now seen corresponding path program 29 times [2022-01-28 12:53:53,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:53,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646346949] [2022-01-28 12:53:53,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:53,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:53,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:53,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:53,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:53,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646346949] [2022-01-28 12:53:53,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646346949] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:53,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:53,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:53,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096869307] [2022-01-28 12:53:53,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:53,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:53,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:53,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:53,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:53,190 INFO L87 Difference]: Start difference. First operand 6633 states and 17840 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:53,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:53,430 INFO L93 Difference]: Finished difference Result 7549 states and 20232 transitions. [2022-01-28 12:53:53,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-28 12:53:53,431 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:53,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:53,443 INFO L225 Difference]: With dead ends: 7549 [2022-01-28 12:53:53,443 INFO L226 Difference]: Without dead ends: 7277 [2022-01-28 12:53:53,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2022-01-28 12:53:53,444 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 126 mSDsluCounter, 1723 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 1903 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 [2022-01-28 12:53:53,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 1903 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:53,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7277 states. [2022-01-28 12:53:53,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7277 to 6621. [2022-01-28 12:53:53,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6621 states, 6620 states have (on average 2.6910876132930515) internal successors, (17815), 6620 states have internal predecessors, (17815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:53,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6621 states to 6621 states and 17815 transitions. [2022-01-28 12:53:53,546 INFO L78 Accepts]: Start accepts. Automaton has 6621 states and 17815 transitions. Word has length 91 [2022-01-28 12:53:53,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:53,546 INFO L470 AbstractCegarLoop]: Abstraction has 6621 states and 17815 transitions. [2022-01-28 12:53:53,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:53,546 INFO L276 IsEmpty]: Start isEmpty. Operand 6621 states and 17815 transitions. [2022-01-28 12:53:53,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:53,555 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:53,556 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] [2022-01-28 12:53:53,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-01-28 12:53:53,556 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:53,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:53,556 INFO L85 PathProgramCache]: Analyzing trace with hash 765585018, now seen corresponding path program 30 times [2022-01-28 12:53:53,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:53,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984754516] [2022-01-28 12:53:53,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:53,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:53,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:53,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:53,636 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:53,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984754516] [2022-01-28 12:53:53,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984754516] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:53,636 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:53,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:53,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148606345] [2022-01-28 12:53:53,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:53,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:53,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:53,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:53,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:53,637 INFO L87 Difference]: Start difference. First operand 6621 states and 17815 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:53,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:53,869 INFO L93 Difference]: Finished difference Result 7614 states and 20405 transitions. [2022-01-28 12:53:53,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-28 12:53:53,870 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:53,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:53,882 INFO L225 Difference]: With dead ends: 7614 [2022-01-28 12:53:53,882 INFO L226 Difference]: Without dead ends: 7329 [2022-01-28 12:53:53,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=174, Invalid=528, Unknown=0, NotChecked=0, Total=702 [2022-01-28 12:53:53,882 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 168 mSDsluCounter, 1176 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 1376 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 [2022-01-28 12:53:53,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 1376 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:53,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7329 states. [2022-01-28 12:53:53,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7329 to 6629. [2022-01-28 12:53:53,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6629 states, 6628 states have (on average 2.69055522027761) internal successors, (17833), 6628 states have internal predecessors, (17833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:53,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6629 states to 6629 states and 17833 transitions. [2022-01-28 12:53:53,982 INFO L78 Accepts]: Start accepts. Automaton has 6629 states and 17833 transitions. Word has length 91 [2022-01-28 12:53:53,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:53,983 INFO L470 AbstractCegarLoop]: Abstraction has 6629 states and 17833 transitions. [2022-01-28 12:53:53,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:53,983 INFO L276 IsEmpty]: Start isEmpty. Operand 6629 states and 17833 transitions. [2022-01-28 12:53:53,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:53,991 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:53,991 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:53,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-01-28 12:53:53,991 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:53,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:53,992 INFO L85 PathProgramCache]: Analyzing trace with hash 2009547112, now seen corresponding path program 31 times [2022-01-28 12:53:53,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:53,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423053145] [2022-01-28 12:53:53,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:53,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:53,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:54,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:54,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:54,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423053145] [2022-01-28 12:53:54,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423053145] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:54,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:54,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:54,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129831655] [2022-01-28 12:53:54,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:54,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:54,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:54,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:54,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:54,076 INFO L87 Difference]: Start difference. First operand 6629 states and 17833 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:54,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:54,312 INFO L93 Difference]: Finished difference Result 7562 states and 20270 transitions. [2022-01-28 12:53:54,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-28 12:53:54,313 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:54,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:54,326 INFO L225 Difference]: With dead ends: 7562 [2022-01-28 12:53:54,326 INFO L226 Difference]: Without dead ends: 7305 [2022-01-28 12:53:54,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2022-01-28 12:53:54,327 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 135 mSDsluCounter, 1500 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1688 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 [2022-01-28 12:53:54,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 1688 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:54,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7305 states. [2022-01-28 12:53:54,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7305 to 6633. [2022-01-28 12:53:54,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6633 states, 6632 states have (on average 2.689987937273824) internal successors, (17840), 6632 states have internal predecessors, (17840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:54,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6633 states to 6633 states and 17840 transitions. [2022-01-28 12:53:54,430 INFO L78 Accepts]: Start accepts. Automaton has 6633 states and 17840 transitions. Word has length 91 [2022-01-28 12:53:54,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:54,430 INFO L470 AbstractCegarLoop]: Abstraction has 6633 states and 17840 transitions. [2022-01-28 12:53:54,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:54,430 INFO L276 IsEmpty]: Start isEmpty. Operand 6633 states and 17840 transitions. [2022-01-28 12:53:54,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:54,438 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:54,438 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] [2022-01-28 12:53:54,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-01-28 12:53:54,438 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:54,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:54,439 INFO L85 PathProgramCache]: Analyzing trace with hash -792598750, now seen corresponding path program 32 times [2022-01-28 12:53:54,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:54,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483273081] [2022-01-28 12:53:54,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:54,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:54,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:54,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:54,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:54,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483273081] [2022-01-28 12:53:54,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483273081] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:54,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:54,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:54,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503818747] [2022-01-28 12:53:54,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:54,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:54,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:54,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:54,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:54,526 INFO L87 Difference]: Start difference. First operand 6633 states and 17840 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:54,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:54,763 INFO L93 Difference]: Finished difference Result 7533 states and 20188 transitions. [2022-01-28 12:53:54,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-28 12:53:54,763 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:54,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:54,774 INFO L225 Difference]: With dead ends: 7533 [2022-01-28 12:53:54,774 INFO L226 Difference]: Without dead ends: 7265 [2022-01-28 12:53:54,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=161, Invalid=489, Unknown=0, NotChecked=0, Total=650 [2022-01-28 12:53:54,775 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 124 mSDsluCounter, 1469 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 1656 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:54,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 1656 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:54,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7265 states. [2022-01-28 12:53:54,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7265 to 6625. [2022-01-28 12:53:54,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6625 states, 6624 states have (on average 2.6905193236714977) internal successors, (17822), 6624 states have internal predecessors, (17822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:54,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6625 states to 6625 states and 17822 transitions. [2022-01-28 12:53:54,872 INFO L78 Accepts]: Start accepts. Automaton has 6625 states and 17822 transitions. Word has length 91 [2022-01-28 12:53:54,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:54,873 INFO L470 AbstractCegarLoop]: Abstraction has 6625 states and 17822 transitions. [2022-01-28 12:53:54,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:54,873 INFO L276 IsEmpty]: Start isEmpty. Operand 6625 states and 17822 transitions. [2022-01-28 12:53:54,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:54,881 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:54,881 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] [2022-01-28 12:53:54,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-01-28 12:53:54,881 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:54,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:54,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1784917320, now seen corresponding path program 33 times [2022-01-28 12:53:54,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:54,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476713957] [2022-01-28 12:53:54,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:54,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:54,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:54,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:54,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:54,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476713957] [2022-01-28 12:53:54,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476713957] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:54,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:54,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:54,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105580446] [2022-01-28 12:53:54,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:54,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:54,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:54,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:54,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:54,957 INFO L87 Difference]: Start difference. First operand 6625 states and 17822 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:55,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:55,197 INFO L93 Difference]: Finished difference Result 7601 states and 20354 transitions. [2022-01-28 12:53:55,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-28 12:53:55,197 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:55,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:55,209 INFO L225 Difference]: With dead ends: 7601 [2022-01-28 12:53:55,209 INFO L226 Difference]: Without dead ends: 7310 [2022-01-28 12:53:55,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=216, Invalid=654, Unknown=0, NotChecked=0, Total=870 [2022-01-28 12:53:55,209 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 180 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 1607 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:55,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 1607 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:55,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7310 states. [2022-01-28 12:53:55,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7310 to 6629. [2022-01-28 12:53:55,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6629 states, 6628 states have (on average 2.68995171997586) internal successors, (17829), 6628 states have internal predecessors, (17829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:55,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6629 states to 6629 states and 17829 transitions. [2022-01-28 12:53:55,311 INFO L78 Accepts]: Start accepts. Automaton has 6629 states and 17829 transitions. Word has length 91 [2022-01-28 12:53:55,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:55,311 INFO L470 AbstractCegarLoop]: Abstraction has 6629 states and 17829 transitions. [2022-01-28 12:53:55,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:55,311 INFO L276 IsEmpty]: Start isEmpty. Operand 6629 states and 17829 transitions. [2022-01-28 12:53:55,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:55,319 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:55,319 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] [2022-01-28 12:53:55,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-01-28 12:53:55,320 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:55,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:55,320 INFO L85 PathProgramCache]: Analyzing trace with hash 2091868322, now seen corresponding path program 34 times [2022-01-28 12:53:55,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:55,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696030694] [2022-01-28 12:53:55,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:55,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:55,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:55,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:55,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:55,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696030694] [2022-01-28 12:53:55,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696030694] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:55,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:55,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:55,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53454510] [2022-01-28 12:53:55,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:55,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:55,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:55,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:55,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:55,397 INFO L87 Difference]: Start difference. First operand 6629 states and 17829 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:55,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:55,598 INFO L93 Difference]: Finished difference Result 7522 states and 20156 transitions. [2022-01-28 12:53:55,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-28 12:53:55,599 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:55,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:55,610 INFO L225 Difference]: With dead ends: 7522 [2022-01-28 12:53:55,610 INFO L226 Difference]: Without dead ends: 7265 [2022-01-28 12:53:55,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-01-28 12:53:55,610 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 142 mSDsluCounter, 1385 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1570 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:55,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 1570 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:55,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7265 states. [2022-01-28 12:53:55,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7265 to 6633. [2022-01-28 12:53:55,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6633 states, 6632 states have (on average 2.6893848009650183) internal successors, (17836), 6632 states have internal predecessors, (17836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:55,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6633 states to 6633 states and 17836 transitions. [2022-01-28 12:53:55,713 INFO L78 Accepts]: Start accepts. Automaton has 6633 states and 17836 transitions. Word has length 91 [2022-01-28 12:53:55,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:55,713 INFO L470 AbstractCegarLoop]: Abstraction has 6633 states and 17836 transitions. [2022-01-28 12:53:55,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:55,713 INFO L276 IsEmpty]: Start isEmpty. Operand 6633 states and 17836 transitions. [2022-01-28 12:53:55,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 12:53:55,722 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:55,722 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:55,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-01-28 12:53:55,722 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:55,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:55,722 INFO L85 PathProgramCache]: Analyzing trace with hash -710277540, now seen corresponding path program 35 times [2022-01-28 12:53:55,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:55,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090049651] [2022-01-28 12:53:55,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:55,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:55,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:55,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:55,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:55,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090049651] [2022-01-28 12:53:55,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090049651] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:55,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:55,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 12:53:55,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922121077] [2022-01-28 12:53:55,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:55,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 12:53:55,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:55,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 12:53:55,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:53:55,811 INFO L87 Difference]: Start difference. First operand 6633 states and 17836 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:56,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:56,038 INFO L93 Difference]: Finished difference Result 7469 states and 20008 transitions. [2022-01-28 12:53:56,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-28 12:53:56,038 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-28 12:53:56,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:56,050 INFO L225 Difference]: With dead ends: 7469 [2022-01-28 12:53:56,050 INFO L226 Difference]: Without dead ends: 7185 [2022-01-28 12:53:56,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=531, Unknown=0, NotChecked=0, Total=702 [2022-01-28 12:53:56,050 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 144 mSDsluCounter, 1645 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1821 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 [2022-01-28 12:53:56,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 1821 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:53:56,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7185 states. [2022-01-28 12:53:56,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7185 to 6597. [2022-01-28 12:53:56,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6597 states, 6596 states have (on average 2.6908732565191027) internal successors, (17749), 6596 states have internal predecessors, (17749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:56,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6597 states to 6597 states and 17749 transitions. [2022-01-28 12:53:56,153 INFO L78 Accepts]: Start accepts. Automaton has 6597 states and 17749 transitions. Word has length 91 [2022-01-28 12:53:56,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:56,153 INFO L470 AbstractCegarLoop]: Abstraction has 6597 states and 17749 transitions. [2022-01-28 12:53:56,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:56,154 INFO L276 IsEmpty]: Start isEmpty. Operand 6597 states and 17749 transitions. [2022-01-28 12:53:56,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-01-28 12:53:56,162 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:56,163 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:56,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-01-28 12:53:56,163 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:56,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:56,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1361468159, now seen corresponding path program 1 times [2022-01-28 12:53:56,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:56,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187292165] [2022-01-28 12:53:56,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:56,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:56,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:56,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:56,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:56,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187292165] [2022-01-28 12:53:56,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187292165] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:56,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:56,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-28 12:53:56,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121232245] [2022-01-28 12:53:56,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:56,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-28 12:53:56,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:56,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-28 12:53:56,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-28 12:53:56,210 INFO L87 Difference]: Start difference. First operand 6597 states and 17749 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:56,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:56,288 INFO L93 Difference]: Finished difference Result 8654 states and 22706 transitions. [2022-01-28 12:53:56,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-28 12:53:56,288 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-01-28 12:53:56,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:56,299 INFO L225 Difference]: With dead ends: 8654 [2022-01-28 12:53:56,300 INFO L226 Difference]: Without dead ends: 7956 [2022-01-28 12:53:56,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-28 12:53:56,300 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 191 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:56,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [191 Valid, 593 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 12:53:56,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7956 states. [2022-01-28 12:53:56,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7956 to 5846. [2022-01-28 12:53:56,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5846 states, 5845 states have (on average 2.688280581693755) internal successors, (15713), 5845 states have internal predecessors, (15713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:56,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5846 states to 5846 states and 15713 transitions. [2022-01-28 12:53:56,383 INFO L78 Accepts]: Start accepts. Automaton has 5846 states and 15713 transitions. Word has length 111 [2022-01-28 12:53:56,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:56,384 INFO L470 AbstractCegarLoop]: Abstraction has 5846 states and 15713 transitions. [2022-01-28 12:53:56,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:56,384 INFO L276 IsEmpty]: Start isEmpty. Operand 5846 states and 15713 transitions. [2022-01-28 12:53:56,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-01-28 12:53:56,390 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:56,390 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:56,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-01-28 12:53:56,390 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:56,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:56,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1203312979, now seen corresponding path program 1 times [2022-01-28 12:53:56,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:56,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455191559] [2022-01-28 12:53:56,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:56,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:56,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:56,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:56,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:56,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455191559] [2022-01-28 12:53:56,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455191559] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:56,478 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:56,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-28 12:53:56,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39343526] [2022-01-28 12:53:56,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:56,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-28 12:53:56,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:56,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-28 12:53:56,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-28 12:53:56,479 INFO L87 Difference]: Start difference. First operand 5846 states and 15713 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:56,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:53:56,513 INFO L93 Difference]: Finished difference Result 5563 states and 14662 transitions. [2022-01-28 12:53:56,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-28 12:53:56,513 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-01-28 12:53:56,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:53:56,521 INFO L225 Difference]: With dead ends: 5563 [2022-01-28 12:53:56,521 INFO L226 Difference]: Without dead ends: 5563 [2022-01-28 12:53:56,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-28 12:53:56,521 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 162 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 12:53:56,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 168 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 12:53:56,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5563 states. [2022-01-28 12:53:56,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5563 to 5563. [2022-01-28 12:53:56,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5563 states, 5562 states have (on average 2.6361021215390146) internal successors, (14662), 5562 states have internal predecessors, (14662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:56,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5563 states to 5563 states and 14662 transitions. [2022-01-28 12:53:56,600 INFO L78 Accepts]: Start accepts. Automaton has 5563 states and 14662 transitions. Word has length 111 [2022-01-28 12:53:56,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:53:56,600 INFO L470 AbstractCegarLoop]: Abstraction has 5563 states and 14662 transitions. [2022-01-28 12:53:56,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:53:56,601 INFO L276 IsEmpty]: Start isEmpty. Operand 5563 states and 14662 transitions. [2022-01-28 12:53:56,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:53:56,607 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:53:56,607 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:53:56,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-01-28 12:53:56,608 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:53:56,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:53:56,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1862970063, now seen corresponding path program 1 times [2022-01-28 12:53:56,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:53:56,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705723355] [2022-01-28 12:53:56,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:53:56,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:53:56,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:53:57,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:53:57,187 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:53:57,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705723355] [2022-01-28 12:53:57,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705723355] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:53:57,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:53:57,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:53:57,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306491789] [2022-01-28 12:53:57,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:53:57,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:53:57,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:53:57,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:53:57,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:53:57,188 INFO L87 Difference]: Start difference. First operand 5563 states and 14662 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:54:05,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:54:05,988 INFO L93 Difference]: Finished difference Result 6672 states and 17462 transitions. [2022-01-28 12:54:05,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-01-28 12:54:05,989 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:54:05,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:54:05,995 INFO L225 Difference]: With dead ends: 6672 [2022-01-28 12:54:05,995 INFO L226 Difference]: Without dead ends: 5502 [2022-01-28 12:54:05,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2814 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=3221, Invalid=8769, Unknown=0, NotChecked=0, Total=11990 [2022-01-28 12:54:05,997 INFO L933 BasicCegarLoop]: 625 mSDtfsCounter, 1979 mSDsluCounter, 10217 mSDsCounter, 0 mSdLazyCounter, 1908 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1979 SdHoareTripleChecker+Valid, 10560 SdHoareTripleChecker+Invalid, 1911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-28 12:54:05,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1979 Valid, 10560 Invalid, 1911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1908 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-28 12:54:06,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5502 states. [2022-01-28 12:54:06,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5502 to 5366. [2022-01-28 12:54:06,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5366 states, 5365 states have (on average 2.639888164026095) internal successors, (14163), 5365 states have internal predecessors, (14163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:54:06,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5366 states to 5366 states and 14163 transitions. [2022-01-28 12:54:06,063 INFO L78 Accepts]: Start accepts. Automaton has 5366 states and 14163 transitions. Word has length 137 [2022-01-28 12:54:06,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:54:06,063 INFO L470 AbstractCegarLoop]: Abstraction has 5366 states and 14163 transitions. [2022-01-28 12:54:06,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:54:06,063 INFO L276 IsEmpty]: Start isEmpty. Operand 5366 states and 14163 transitions. [2022-01-28 12:54:06,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:54:06,069 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:54:06,069 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:54:06,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-01-28 12:54:06,069 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:54:06,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:54:06,069 INFO L85 PathProgramCache]: Analyzing trace with hash 298409985, now seen corresponding path program 2 times [2022-01-28 12:54:06,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:54:06,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369080452] [2022-01-28 12:54:06,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:54:06,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:54:06,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:54:06,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:54:06,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:54:06,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369080452] [2022-01-28 12:54:06,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369080452] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:54:06,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:54:06,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:54:06,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675482138] [2022-01-28 12:54:06,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:54:06,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:54:06,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:54:06,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:54:06,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:54:06,682 INFO L87 Difference]: Start difference. First operand 5366 states and 14163 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:54:31,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:54:31,930 INFO L93 Difference]: Finished difference Result 7488 states and 19502 transitions. [2022-01-28 12:54:31,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-01-28 12:54:31,931 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:54:31,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:54:31,939 INFO L225 Difference]: With dead ends: 7488 [2022-01-28 12:54:31,939 INFO L226 Difference]: Without dead ends: 6515 [2022-01-28 12:54:31,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2663 ImplicationChecksByTransitivity, 24.6s TimeCoverageRelationStatistics Valid=2903, Invalid=8227, Unknown=0, NotChecked=0, Total=11130 [2022-01-28 12:54:31,940 INFO L933 BasicCegarLoop]: 607 mSDtfsCounter, 1899 mSDsluCounter, 9797 mSDsCounter, 0 mSdLazyCounter, 1885 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1899 SdHoareTripleChecker+Valid, 10157 SdHoareTripleChecker+Invalid, 1888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-28 12:54:31,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1899 Valid, 10157 Invalid, 1888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1885 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-28 12:54:31,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6515 states. [2022-01-28 12:54:31,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6515 to 5378. [2022-01-28 12:54:32,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5378 states, 5377 states have (on average 2.637902175934536) internal successors, (14184), 5377 states have internal predecessors, (14184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:54:32,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 14184 transitions. [2022-01-28 12:54:32,008 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 14184 transitions. Word has length 137 [2022-01-28 12:54:32,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:54:32,009 INFO L470 AbstractCegarLoop]: Abstraction has 5378 states and 14184 transitions. [2022-01-28 12:54:32,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:54:32,009 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 14184 transitions. [2022-01-28 12:54:32,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:54:32,014 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:54:32,014 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:54:32,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-01-28 12:54:32,015 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:54:32,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:54:32,015 INFO L85 PathProgramCache]: Analyzing trace with hash 69628501, now seen corresponding path program 3 times [2022-01-28 12:54:32,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:54:32,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590245923] [2022-01-28 12:54:32,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:54:32,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:54:32,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:54:32,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:54:32,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:54:32,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590245923] [2022-01-28 12:54:32,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590245923] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:54:32,563 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:54:32,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:54:32,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752077909] [2022-01-28 12:54:32,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:54:32,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:54:32,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:54:32,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:54:32,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:54:32,564 INFO L87 Difference]: Start difference. First operand 5378 states and 14184 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:54:39,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:54:39,108 INFO L93 Difference]: Finished difference Result 7042 states and 18372 transitions. [2022-01-28 12:54:39,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-01-28 12:54:39,108 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:54:39,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:54:39,117 INFO L225 Difference]: With dead ends: 7042 [2022-01-28 12:54:39,118 INFO L226 Difference]: Without dead ends: 6193 [2022-01-28 12:54:39,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2098 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=2318, Invalid=7188, Unknown=0, NotChecked=0, Total=9506 [2022-01-28 12:54:39,119 INFO L933 BasicCegarLoop]: 595 mSDtfsCounter, 1497 mSDsluCounter, 10382 mSDsCounter, 0 mSdLazyCounter, 2097 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 10710 SdHoareTripleChecker+Invalid, 2100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-28 12:54:39,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1497 Valid, 10710 Invalid, 2100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2097 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-28 12:54:39,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6193 states. [2022-01-28 12:54:39,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6193 to 5434. [2022-01-28 12:54:39,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5434 states, 5433 states have (on average 2.6294864715626725) internal successors, (14286), 5433 states have internal predecessors, (14286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:54:39,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5434 states to 5434 states and 14286 transitions. [2022-01-28 12:54:39,199 INFO L78 Accepts]: Start accepts. Automaton has 5434 states and 14286 transitions. Word has length 137 [2022-01-28 12:54:39,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:54:39,200 INFO L470 AbstractCegarLoop]: Abstraction has 5434 states and 14286 transitions. [2022-01-28 12:54:39,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:54:39,200 INFO L276 IsEmpty]: Start isEmpty. Operand 5434 states and 14286 transitions. [2022-01-28 12:54:39,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:54:39,206 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:54:39,206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:54:39,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-01-28 12:54:39,206 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:54:39,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:54:39,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1486434563, now seen corresponding path program 4 times [2022-01-28 12:54:39,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:54:39,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613352626] [2022-01-28 12:54:39,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:54:39,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:54:39,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:54:39,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:54:39,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:54:39,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613352626] [2022-01-28 12:54:39,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613352626] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:54:39,712 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:54:39,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:54:39,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503527825] [2022-01-28 12:54:39,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:54:39,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:54:39,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:54:39,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:54:39,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:54:39,712 INFO L87 Difference]: Start difference. First operand 5434 states and 14286 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:54:44,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:54:44,867 INFO L93 Difference]: Finished difference Result 6608 states and 17214 transitions. [2022-01-28 12:54:44,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-01-28 12:54:44,867 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:54:44,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:54:44,877 INFO L225 Difference]: With dead ends: 6608 [2022-01-28 12:54:44,877 INFO L226 Difference]: Without dead ends: 6162 [2022-01-28 12:54:44,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1910 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=2054, Invalid=6688, Unknown=0, NotChecked=0, Total=8742 [2022-01-28 12:54:44,878 INFO L933 BasicCegarLoop]: 577 mSDtfsCounter, 1393 mSDsluCounter, 10021 mSDsCounter, 0 mSdLazyCounter, 2002 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1393 SdHoareTripleChecker+Valid, 10346 SdHoareTripleChecker+Invalid, 2005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-28 12:54:44,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1393 Valid, 10346 Invalid, 2005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2002 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-28 12:54:44,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6162 states. [2022-01-28 12:54:44,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6162 to 5438. [2022-01-28 12:54:44,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5438 states, 5437 states have (on average 2.6288394335111276) internal successors, (14293), 5437 states have internal predecessors, (14293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:54:44,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5438 states to 5438 states and 14293 transitions. [2022-01-28 12:54:44,956 INFO L78 Accepts]: Start accepts. Automaton has 5438 states and 14293 transitions. Word has length 137 [2022-01-28 12:54:44,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:54:44,956 INFO L470 AbstractCegarLoop]: Abstraction has 5438 states and 14293 transitions. [2022-01-28 12:54:44,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:54:44,956 INFO L276 IsEmpty]: Start isEmpty. Operand 5438 states and 14293 transitions. [2022-01-28 12:54:44,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:54:44,962 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:54:44,962 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] [2022-01-28 12:54:44,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-01-28 12:54:44,962 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:54:44,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:54:44,963 INFO L85 PathProgramCache]: Analyzing trace with hash -897574149, now seen corresponding path program 5 times [2022-01-28 12:54:44,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:54:44,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894703224] [2022-01-28 12:54:44,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:54:44,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:54:44,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:54:45,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:54:45,468 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:54:45,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894703224] [2022-01-28 12:54:45,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894703224] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:54:45,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:54:45,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:54:45,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997478088] [2022-01-28 12:54:45,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:54:45,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:54:45,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:54:45,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:54:45,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:54:45,469 INFO L87 Difference]: Start difference. First operand 5438 states and 14293 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:54:50,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:54:50,245 INFO L93 Difference]: Finished difference Result 6370 states and 16667 transitions. [2022-01-28 12:54:50,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-28 12:54:50,245 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:54:50,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:54:50,254 INFO L225 Difference]: With dead ends: 6370 [2022-01-28 12:54:50,255 INFO L226 Difference]: Without dead ends: 5955 [2022-01-28 12:54:50,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1769 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1809, Invalid=6201, Unknown=0, NotChecked=0, Total=8010 [2022-01-28 12:54:50,256 INFO L933 BasicCegarLoop]: 569 mSDtfsCounter, 1226 mSDsluCounter, 9083 mSDsCounter, 0 mSdLazyCounter, 1854 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1226 SdHoareTripleChecker+Valid, 9440 SdHoareTripleChecker+Invalid, 1857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 12:54:50,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1226 Valid, 9440 Invalid, 1857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1854 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 12:54:50,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5955 states. [2022-01-28 12:54:50,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5955 to 5450. [2022-01-28 12:54:50,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5450 states, 5449 states have (on average 2.6269040190860706) internal successors, (14314), 5449 states have internal predecessors, (14314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:54:50,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5450 states to 5450 states and 14314 transitions. [2022-01-28 12:54:50,363 INFO L78 Accepts]: Start accepts. Automaton has 5450 states and 14314 transitions. Word has length 137 [2022-01-28 12:54:50,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:54:50,363 INFO L470 AbstractCegarLoop]: Abstraction has 5450 states and 14314 transitions. [2022-01-28 12:54:50,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:54:50,364 INFO L276 IsEmpty]: Start isEmpty. Operand 5450 states and 14314 transitions. [2022-01-28 12:54:50,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:54:50,373 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:54:50,373 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:54:50,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-01-28 12:54:50,373 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:54:50,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:54:50,374 INFO L85 PathProgramCache]: Analyzing trace with hash 933751745, now seen corresponding path program 6 times [2022-01-28 12:54:50,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:54:50,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129915698] [2022-01-28 12:54:50,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:54:50,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:54:50,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:54:50,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:54:50,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:54:50,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129915698] [2022-01-28 12:54:50,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129915698] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:54:50,953 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:54:50,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:54:50,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271819126] [2022-01-28 12:54:50,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:54:50,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:54:50,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:54:50,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:54:50,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:54:50,954 INFO L87 Difference]: Start difference. First operand 5450 states and 14314 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:54:55,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:54:55,278 INFO L93 Difference]: Finished difference Result 6215 states and 16260 transitions. [2022-01-28 12:54:55,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-28 12:54:55,278 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:54:55,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:54:55,285 INFO L225 Difference]: With dead ends: 6215 [2022-01-28 12:54:55,285 INFO L226 Difference]: Without dead ends: 5893 [2022-01-28 12:54:55,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1296 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1478, Invalid=5164, Unknown=0, NotChecked=0, Total=6642 [2022-01-28 12:54:55,286 INFO L933 BasicCegarLoop]: 560 mSDtfsCounter, 1063 mSDsluCounter, 10312 mSDsCounter, 0 mSdLazyCounter, 2043 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 10630 SdHoareTripleChecker+Invalid, 2046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 12:54:55,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1063 Valid, 10630 Invalid, 2046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2043 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 12:54:55,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5893 states. [2022-01-28 12:54:55,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5893 to 5454. [2022-01-28 12:54:55,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5454 states, 5453 states have (on average 2.6262607738859343) internal successors, (14321), 5453 states have internal predecessors, (14321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:54:55,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5454 states to 5454 states and 14321 transitions. [2022-01-28 12:54:55,356 INFO L78 Accepts]: Start accepts. Automaton has 5454 states and 14321 transitions. Word has length 137 [2022-01-28 12:54:55,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:54:55,357 INFO L470 AbstractCegarLoop]: Abstraction has 5454 states and 14321 transitions. [2022-01-28 12:54:55,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:54:55,357 INFO L276 IsEmpty]: Start isEmpty. Operand 5454 states and 14321 transitions. [2022-01-28 12:54:55,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:54:55,363 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:54:55,363 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:54:55,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-01-28 12:54:55,363 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:54:55,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:54:55,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1229354581, now seen corresponding path program 7 times [2022-01-28 12:54:55,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:54:55,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140757830] [2022-01-28 12:54:55,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:54:55,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:54:55,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:54:55,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:54:55,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:54:55,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140757830] [2022-01-28 12:54:55,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140757830] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:54:55,896 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:54:55,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:54:55,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575700373] [2022-01-28 12:54:55,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:54:55,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:54:55,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:54:55,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:54:55,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:54:55,897 INFO L87 Difference]: Start difference. First operand 5454 states and 14321 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:54:59,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:54:59,827 INFO L93 Difference]: Finished difference Result 6122 states and 16019 transitions. [2022-01-28 12:54:59,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-28 12:54:59,827 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:54:59,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:54:59,834 INFO L225 Difference]: With dead ends: 6122 [2022-01-28 12:54:59,834 INFO L226 Difference]: Without dead ends: 5831 [2022-01-28 12:54:59,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 938 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1200, Invalid=4202, Unknown=0, NotChecked=0, Total=5402 [2022-01-28 12:54:59,835 INFO L933 BasicCegarLoop]: 552 mSDtfsCounter, 1030 mSDsluCounter, 9416 mSDsCounter, 0 mSdLazyCounter, 1889 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 9768 SdHoareTripleChecker+Invalid, 1892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 12:54:59,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1030 Valid, 9768 Invalid, 1892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1889 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 12:54:59,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5831 states. [2022-01-28 12:54:59,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5831 to 5458. [2022-01-28 12:54:59,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5458 states, 5457 states have (on average 2.6256184716877407) internal successors, (14328), 5457 states have internal predecessors, (14328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:54:59,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5458 states to 5458 states and 14328 transitions. [2022-01-28 12:54:59,904 INFO L78 Accepts]: Start accepts. Automaton has 5458 states and 14328 transitions. Word has length 137 [2022-01-28 12:54:59,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:54:59,904 INFO L470 AbstractCegarLoop]: Abstraction has 5458 states and 14328 transitions. [2022-01-28 12:54:59,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:54:59,904 INFO L276 IsEmpty]: Start isEmpty. Operand 5458 states and 14328 transitions. [2022-01-28 12:54:59,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:54:59,911 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:54:59,911 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:54:59,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-01-28 12:54:59,911 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:54:59,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:54:59,911 INFO L85 PathProgramCache]: Analyzing trace with hash 811172927, now seen corresponding path program 8 times [2022-01-28 12:54:59,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:54:59,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541923967] [2022-01-28 12:54:59,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:54:59,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:54:59,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:55:00,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:55:00,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:55:00,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541923967] [2022-01-28 12:55:00,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541923967] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:55:00,430 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:55:00,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:55:00,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045716554] [2022-01-28 12:55:00,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:55:00,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:55:00,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:55:00,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:55:00,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:55:00,431 INFO L87 Difference]: Start difference. First operand 5458 states and 14328 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:55:05,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:55:05,353 INFO L93 Difference]: Finished difference Result 5967 states and 15620 transitions. [2022-01-28 12:55:05,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-28 12:55:05,353 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:55:05,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:55:05,363 INFO L225 Difference]: With dead ends: 5967 [2022-01-28 12:55:05,363 INFO L226 Difference]: Without dead ends: 5710 [2022-01-28 12:55:05,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=955, Invalid=2827, Unknown=0, NotChecked=0, Total=3782 [2022-01-28 12:55:05,364 INFO L933 BasicCegarLoop]: 537 mSDtfsCounter, 996 mSDsluCounter, 8084 mSDsCounter, 0 mSdLazyCounter, 1637 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 996 SdHoareTripleChecker+Valid, 8473 SdHoareTripleChecker+Invalid, 1640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-28 12:55:05,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [996 Valid, 8473 Invalid, 1640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1637 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-28 12:55:05,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5710 states. [2022-01-28 12:55:05,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5710 to 5462. [2022-01-28 12:55:05,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5461 states have (on average 2.624977110419337) internal successors, (14335), 5461 states have internal predecessors, (14335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:55:05,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 14335 transitions. [2022-01-28 12:55:05,436 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 14335 transitions. Word has length 137 [2022-01-28 12:55:05,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:55:05,436 INFO L470 AbstractCegarLoop]: Abstraction has 5462 states and 14335 transitions. [2022-01-28 12:55:05,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:55:05,437 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 14335 transitions. [2022-01-28 12:55:05,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:55:05,442 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:55:05,442 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:55:05,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-01-28 12:55:05,443 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:55:05,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:55:05,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1990972935, now seen corresponding path program 9 times [2022-01-28 12:55:05,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:55:05,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619011469] [2022-01-28 12:55:05,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:55:05,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:55:05,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:55:05,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:55:05,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:55:05,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619011469] [2022-01-28 12:55:05,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619011469] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:55:05,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:55:05,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:55:05,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090082645] [2022-01-28 12:55:05,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:55:05,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:55:05,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:55:05,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:55:05,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:55:05,997 INFO L87 Difference]: Start difference. First operand 5462 states and 14335 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:55:09,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:55:09,639 INFO L93 Difference]: Finished difference Result 5970 states and 15622 transitions. [2022-01-28 12:55:09,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-28 12:55:09,639 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:55:09,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:55:09,647 INFO L225 Difference]: With dead ends: 5970 [2022-01-28 12:55:09,647 INFO L226 Difference]: Without dead ends: 5630 [2022-01-28 12:55:09,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 628 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=972, Invalid=3318, Unknown=0, NotChecked=0, Total=4290 [2022-01-28 12:55:09,648 INFO L933 BasicCegarLoop]: 545 mSDtfsCounter, 964 mSDsluCounter, 9519 mSDsCounter, 0 mSdLazyCounter, 1908 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 964 SdHoareTripleChecker+Valid, 9873 SdHoareTripleChecker+Invalid, 1911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 12:55:09,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [964 Valid, 9873 Invalid, 1911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1908 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 12:55:09,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5630 states. [2022-01-28 12:55:09,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5630 to 5382. [2022-01-28 12:55:09,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5382 states, 5381 states have (on average 2.6372421482995727) internal successors, (14191), 5381 states have internal predecessors, (14191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:55:09,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5382 states to 5382 states and 14191 transitions. [2022-01-28 12:55:09,725 INFO L78 Accepts]: Start accepts. Automaton has 5382 states and 14191 transitions. Word has length 137 [2022-01-28 12:55:09,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:55:09,725 INFO L470 AbstractCegarLoop]: Abstraction has 5382 states and 14191 transitions. [2022-01-28 12:55:09,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:55:09,725 INFO L276 IsEmpty]: Start isEmpty. Operand 5382 states and 14191 transitions. [2022-01-28 12:55:09,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:55:09,733 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:55:09,733 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:55:09,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-01-28 12:55:09,733 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:55:09,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:55:09,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1791231757, now seen corresponding path program 10 times [2022-01-28 12:55:09,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:55:09,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389533602] [2022-01-28 12:55:09,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:55:09,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:55:09,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:55:10,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:55:10,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:55:10,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389533602] [2022-01-28 12:55:10,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389533602] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:55:10,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:55:10,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:55:10,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571979906] [2022-01-28 12:55:10,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:55:10,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:55:10,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:55:10,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:55:10,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:55:10,297 INFO L87 Difference]: Start difference. First operand 5382 states and 14191 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:55:16,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:55:16,516 INFO L93 Difference]: Finished difference Result 6398 states and 16754 transitions. [2022-01-28 12:55:16,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-01-28 12:55:16,516 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:55:16,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:55:16,523 INFO L225 Difference]: With dead ends: 6398 [2022-01-28 12:55:16,523 INFO L226 Difference]: Without dead ends: 5476 [2022-01-28 12:55:16,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2423 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=2603, Invalid=7699, Unknown=0, NotChecked=0, Total=10302 [2022-01-28 12:55:16,524 INFO L933 BasicCegarLoop]: 607 mSDtfsCounter, 1484 mSDsluCounter, 9668 mSDsCounter, 0 mSdLazyCounter, 1905 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 10022 SdHoareTripleChecker+Invalid, 1908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 12:55:16,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1484 Valid, 10022 Invalid, 1908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1905 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 12:55:16,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5476 states. [2022-01-28 12:55:16,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5476 to 5340. [2022-01-28 12:55:16,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5340 states, 5339 states have (on average 2.640194793032403) internal successors, (14096), 5339 states have internal predecessors, (14096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:55:16,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5340 states to 5340 states and 14096 transitions. [2022-01-28 12:55:16,584 INFO L78 Accepts]: Start accepts. Automaton has 5340 states and 14096 transitions. Word has length 137 [2022-01-28 12:55:16,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:55:16,584 INFO L470 AbstractCegarLoop]: Abstraction has 5340 states and 14096 transitions. [2022-01-28 12:55:16,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:55:16,584 INFO L276 IsEmpty]: Start isEmpty. Operand 5340 states and 14096 transitions. [2022-01-28 12:55:16,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:55:16,590 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:55:16,590 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:55:16,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-01-28 12:55:16,591 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:55:16,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:55:16,591 INFO L85 PathProgramCache]: Analyzing trace with hash 66333161, now seen corresponding path program 11 times [2022-01-28 12:55:16,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:55:16,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589146499] [2022-01-28 12:55:16,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:55:16,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:55:16,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:55:17,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:55:17,106 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:55:17,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589146499] [2022-01-28 12:55:17,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589146499] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:55:17,106 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:55:17,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:55:17,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382689609] [2022-01-28 12:55:17,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:55:17,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:55:17,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:55:17,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:55:17,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:55:17,107 INFO L87 Difference]: Start difference. First operand 5340 states and 14096 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:55:26,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:55:26,518 INFO L93 Difference]: Finished difference Result 7586 states and 19772 transitions. [2022-01-28 12:55:26,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-01-28 12:55:26,519 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:55:26,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:55:26,527 INFO L225 Difference]: With dead ends: 7586 [2022-01-28 12:55:26,527 INFO L226 Difference]: Without dead ends: 6613 [2022-01-28 12:55:26,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2544 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=2923, Invalid=8207, Unknown=0, NotChecked=0, Total=11130 [2022-01-28 12:55:26,528 INFO L933 BasicCegarLoop]: 597 mSDtfsCounter, 2036 mSDsluCounter, 9988 mSDsCounter, 0 mSdLazyCounter, 1939 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2036 SdHoareTripleChecker+Valid, 10340 SdHoareTripleChecker+Invalid, 1942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-28 12:55:26,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2036 Valid, 10340 Invalid, 1942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1939 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-28 12:55:26,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6613 states. [2022-01-28 12:55:26,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6613 to 5364. [2022-01-28 12:55:26,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5364 states, 5363 states have (on average 2.638448629498415) internal successors, (14150), 5363 states have internal predecessors, (14150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:55:26,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5364 states to 5364 states and 14150 transitions. [2022-01-28 12:55:26,600 INFO L78 Accepts]: Start accepts. Automaton has 5364 states and 14150 transitions. Word has length 137 [2022-01-28 12:55:26,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:55:26,600 INFO L470 AbstractCegarLoop]: Abstraction has 5364 states and 14150 transitions. [2022-01-28 12:55:26,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:55:26,600 INFO L276 IsEmpty]: Start isEmpty. Operand 5364 states and 14150 transitions. [2022-01-28 12:55:26,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:55:26,606 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:55:26,606 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:55:26,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-01-28 12:55:26,606 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:55:26,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:55:26,606 INFO L85 PathProgramCache]: Analyzing trace with hash -162448323, now seen corresponding path program 12 times [2022-01-28 12:55:26,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:55:26,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131868029] [2022-01-28 12:55:26,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:55:26,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:55:26,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:55:27,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:55:27,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:55:27,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131868029] [2022-01-28 12:55:27,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131868029] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:55:27,097 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:55:27,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:55:27,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11872595] [2022-01-28 12:55:27,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:55:27,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:55:27,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:55:27,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:55:27,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:55:27,098 INFO L87 Difference]: Start difference. First operand 5364 states and 14150 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:55:36,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:55:36,710 INFO L93 Difference]: Finished difference Result 7476 states and 19554 transitions. [2022-01-28 12:55:36,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-01-28 12:55:36,710 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:55:36,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:55:36,718 INFO L225 Difference]: With dead ends: 7476 [2022-01-28 12:55:36,718 INFO L226 Difference]: Without dead ends: 6627 [2022-01-28 12:55:36,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2165 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=2340, Invalid=7166, Unknown=0, NotChecked=0, Total=9506 [2022-01-28 12:55:36,719 INFO L933 BasicCegarLoop]: 587 mSDtfsCounter, 1632 mSDsluCounter, 10424 mSDsCounter, 0 mSdLazyCounter, 2097 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1632 SdHoareTripleChecker+Valid, 10751 SdHoareTripleChecker+Invalid, 2100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-28 12:55:36,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1632 Valid, 10751 Invalid, 2100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2097 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-28 12:55:36,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6627 states. [2022-01-28 12:55:36,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6627 to 5420. [2022-01-28 12:55:36,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5420 states, 5419 states have (on average 2.630005536076767) internal successors, (14252), 5419 states have internal predecessors, (14252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:55:36,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5420 states to 5420 states and 14252 transitions. [2022-01-28 12:55:36,786 INFO L78 Accepts]: Start accepts. Automaton has 5420 states and 14252 transitions. Word has length 137 [2022-01-28 12:55:36,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:55:36,786 INFO L470 AbstractCegarLoop]: Abstraction has 5420 states and 14252 transitions. [2022-01-28 12:55:36,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:55:36,786 INFO L276 IsEmpty]: Start isEmpty. Operand 5420 states and 14252 transitions. [2022-01-28 12:55:36,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:55:36,792 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:55:36,792 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:55:36,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-01-28 12:55:36,792 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:55:36,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:55:36,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1718511387, now seen corresponding path program 13 times [2022-01-28 12:55:36,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:55:36,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615136692] [2022-01-28 12:55:36,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:55:36,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:55:36,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:55:37,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:55:37,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:55:37,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615136692] [2022-01-28 12:55:37,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615136692] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:55:37,294 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:55:37,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:55:37,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790608764] [2022-01-28 12:55:37,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:55:37,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:55:37,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:55:37,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:55:37,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:55:37,295 INFO L87 Difference]: Start difference. First operand 5420 states and 14252 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:55:42,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:55:42,987 INFO L93 Difference]: Finished difference Result 7042 states and 18396 transitions. [2022-01-28 12:55:42,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-01-28 12:55:42,987 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:55:42,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:55:42,996 INFO L225 Difference]: With dead ends: 7042 [2022-01-28 12:55:42,996 INFO L226 Difference]: Without dead ends: 6596 [2022-01-28 12:55:42,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1894 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=2071, Invalid=6671, Unknown=0, NotChecked=0, Total=8742 [2022-01-28 12:55:42,997 INFO L933 BasicCegarLoop]: 569 mSDtfsCounter, 1556 mSDsluCounter, 10144 mSDsCounter, 0 mSdLazyCounter, 2022 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1556 SdHoareTripleChecker+Valid, 10467 SdHoareTripleChecker+Invalid, 2025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 12:55:42,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1556 Valid, 10467 Invalid, 2025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2022 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 12:55:43,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6596 states. [2022-01-28 12:55:43,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6596 to 5424. [2022-01-28 12:55:43,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5424 states, 5423 states have (on average 2.629356444772266) internal successors, (14259), 5423 states have internal predecessors, (14259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:55:43,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5424 states to 5424 states and 14259 transitions. [2022-01-28 12:55:43,059 INFO L78 Accepts]: Start accepts. Automaton has 5424 states and 14259 transitions. Word has length 137 [2022-01-28 12:55:43,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:55:43,059 INFO L470 AbstractCegarLoop]: Abstraction has 5424 states and 14259 transitions. [2022-01-28 12:55:43,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:55:43,059 INFO L276 IsEmpty]: Start isEmpty. Operand 5424 states and 14259 transitions. [2022-01-28 12:55:43,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:55:43,065 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:55:43,065 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:55:43,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-01-28 12:55:43,065 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:55:43,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:55:43,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1129650973, now seen corresponding path program 14 times [2022-01-28 12:55:43,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:55:43,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758340954] [2022-01-28 12:55:43,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:55:43,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:55:43,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:55:43,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:55:43,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:55:43,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758340954] [2022-01-28 12:55:43,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758340954] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:55:43,559 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:55:43,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:55:43,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132770047] [2022-01-28 12:55:43,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:55:43,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:55:43,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:55:43,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:55:43,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:55:43,560 INFO L87 Difference]: Start difference. First operand 5424 states and 14259 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:55:48,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:55:48,812 INFO L93 Difference]: Finished difference Result 6804 states and 17849 transitions. [2022-01-28 12:55:48,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-28 12:55:48,812 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:55:48,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:55:48,821 INFO L225 Difference]: With dead ends: 6804 [2022-01-28 12:55:48,821 INFO L226 Difference]: Without dead ends: 6389 [2022-01-28 12:55:48,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1686 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=1821, Invalid=6189, Unknown=0, NotChecked=0, Total=8010 [2022-01-28 12:55:48,822 INFO L933 BasicCegarLoop]: 561 mSDtfsCounter, 1169 mSDsluCounter, 9659 mSDsCounter, 0 mSdLazyCounter, 1976 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1169 SdHoareTripleChecker+Valid, 10000 SdHoareTripleChecker+Invalid, 1979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 12:55:48,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1169 Valid, 10000 Invalid, 1979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1976 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 12:55:48,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6389 states. [2022-01-28 12:55:48,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6389 to 5436. [2022-01-28 12:55:48,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5435 states have (on average 2.6274149034038636) internal successors, (14280), 5435 states have internal predecessors, (14280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:55:48,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 14280 transitions. [2022-01-28 12:55:48,898 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 14280 transitions. Word has length 137 [2022-01-28 12:55:48,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:55:48,898 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 14280 transitions. [2022-01-28 12:55:48,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:55:48,898 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 14280 transitions. [2022-01-28 12:55:48,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:55:48,904 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:55:48,904 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:55:48,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-01-28 12:55:48,904 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:55:48,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:55:48,905 INFO L85 PathProgramCache]: Analyzing trace with hash 701674921, now seen corresponding path program 15 times [2022-01-28 12:55:48,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:55:48,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867228190] [2022-01-28 12:55:48,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:55:48,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:55:48,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:55:49,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:55:49,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:55:49,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867228190] [2022-01-28 12:55:49,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867228190] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:55:49,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:55:49,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:55:49,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404915225] [2022-01-28 12:55:49,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:55:49,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:55:49,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:55:49,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:55:49,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:55:49,443 INFO L87 Difference]: Start difference. First operand 5436 states and 14280 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:56:04,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:56:04,442 INFO L93 Difference]: Finished difference Result 6649 states and 17442 transitions. [2022-01-28 12:56:04,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-28 12:56:04,442 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:56:04,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:56:04,450 INFO L225 Difference]: With dead ends: 6649 [2022-01-28 12:56:04,451 INFO L226 Difference]: Without dead ends: 6327 [2022-01-28 12:56:04,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1343 ImplicationChecksByTransitivity, 14.4s TimeCoverageRelationStatistics Valid=1492, Invalid=5150, Unknown=0, NotChecked=0, Total=6642 [2022-01-28 12:56:04,451 INFO L933 BasicCegarLoop]: 552 mSDtfsCounter, 1095 mSDsluCounter, 8911 mSDsCounter, 0 mSdLazyCounter, 1824 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1095 SdHoareTripleChecker+Valid, 9275 SdHoareTripleChecker+Invalid, 1827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 12:56:04,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1095 Valid, 9275 Invalid, 1827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1824 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 12:56:04,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6327 states. [2022-01-28 12:56:04,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6327 to 5440. [2022-01-28 12:56:04,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5439 states have (on average 2.6267696267696268) internal successors, (14287), 5439 states have internal predecessors, (14287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:56:04,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14287 transitions. [2022-01-28 12:56:04,527 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14287 transitions. Word has length 137 [2022-01-28 12:56:04,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:56:04,527 INFO L470 AbstractCegarLoop]: Abstraction has 5440 states and 14287 transitions. [2022-01-28 12:56:04,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:56:04,527 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14287 transitions. [2022-01-28 12:56:04,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:56:04,533 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:56:04,533 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:56:04,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-01-28 12:56:04,534 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:56:04,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:56:04,534 INFO L85 PathProgramCache]: Analyzing trace with hash 997277757, now seen corresponding path program 16 times [2022-01-28 12:56:04,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:56:04,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451257259] [2022-01-28 12:56:04,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:56:04,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:56:04,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:56:05,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:56:05,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:56:05,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451257259] [2022-01-28 12:56:05,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451257259] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:56:05,039 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:56:05,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:56:05,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132118161] [2022-01-28 12:56:05,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:56:05,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:56:05,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:56:05,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:56:05,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:56:05,040 INFO L87 Difference]: Start difference. First operand 5440 states and 14287 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:56:09,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:56:09,146 INFO L93 Difference]: Finished difference Result 6556 states and 17201 transitions. [2022-01-28 12:56:09,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-28 12:56:09,146 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:56:09,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:56:09,156 INFO L225 Difference]: With dead ends: 6556 [2022-01-28 12:56:09,156 INFO L226 Difference]: Without dead ends: 6265 [2022-01-28 12:56:09,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 927 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1207, Invalid=4195, Unknown=0, NotChecked=0, Total=5402 [2022-01-28 12:56:09,158 INFO L933 BasicCegarLoop]: 544 mSDtfsCounter, 1019 mSDsluCounter, 9842 mSDsCounter, 0 mSdLazyCounter, 1979 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1019 SdHoareTripleChecker+Valid, 10181 SdHoareTripleChecker+Invalid, 1982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 12:56:09,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1019 Valid, 10181 Invalid, 1982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1979 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 12:56:09,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6265 states. [2022-01-28 12:56:09,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6265 to 5444. [2022-01-28 12:56:09,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5444 states, 5443 states have (on average 2.6261252985485943) internal successors, (14294), 5443 states have internal predecessors, (14294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:56:09,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5444 states to 5444 states and 14294 transitions. [2022-01-28 12:56:09,237 INFO L78 Accepts]: Start accepts. Automaton has 5444 states and 14294 transitions. Word has length 137 [2022-01-28 12:56:09,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:56:09,237 INFO L470 AbstractCegarLoop]: Abstraction has 5444 states and 14294 transitions. [2022-01-28 12:56:09,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:56:09,238 INFO L276 IsEmpty]: Start isEmpty. Operand 5444 states and 14294 transitions. [2022-01-28 12:56:09,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:56:09,244 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:56:09,244 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:56:09,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-01-28 12:56:09,244 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:56:09,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:56:09,244 INFO L85 PathProgramCache]: Analyzing trace with hash 579096103, now seen corresponding path program 17 times [2022-01-28 12:56:09,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:56:09,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027259415] [2022-01-28 12:56:09,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:56:09,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:56:09,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:56:09,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:56:09,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:56:09,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027259415] [2022-01-28 12:56:09,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027259415] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:56:09,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:56:09,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:56:09,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55561148] [2022-01-28 12:56:09,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:56:09,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:56:09,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:56:09,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:56:09,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:56:09,751 INFO L87 Difference]: Start difference. First operand 5444 states and 14294 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:56:13,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:56:13,679 INFO L93 Difference]: Finished difference Result 6401 states and 16802 transitions. [2022-01-28 12:56:13,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-28 12:56:13,680 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:56:13,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:56:13,689 INFO L225 Difference]: With dead ends: 6401 [2022-01-28 12:56:13,689 INFO L226 Difference]: Without dead ends: 6144 [2022-01-28 12:56:13,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 461 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=951, Invalid=2831, Unknown=0, NotChecked=0, Total=3782 [2022-01-28 12:56:13,690 INFO L933 BasicCegarLoop]: 529 mSDtfsCounter, 984 mSDsluCounter, 8956 mSDsCounter, 0 mSdLazyCounter, 1806 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 9324 SdHoareTripleChecker+Invalid, 1809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 12:56:13,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [984 Valid, 9324 Invalid, 1809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1806 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 12:56:13,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6144 states. [2022-01-28 12:56:13,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6144 to 5448. [2022-01-28 12:56:13,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5448 states, 5447 states have (on average 2.625481916651368) internal successors, (14301), 5447 states have internal predecessors, (14301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:56:13,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5448 states to 5448 states and 14301 transitions. [2022-01-28 12:56:13,772 INFO L78 Accepts]: Start accepts. Automaton has 5448 states and 14301 transitions. Word has length 137 [2022-01-28 12:56:13,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:56:13,772 INFO L470 AbstractCegarLoop]: Abstraction has 5448 states and 14301 transitions. [2022-01-28 12:56:13,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:56:13,773 INFO L276 IsEmpty]: Start isEmpty. Operand 5448 states and 14301 transitions. [2022-01-28 12:56:13,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:56:13,779 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:56:13,779 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:56:13,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-01-28 12:56:13,779 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:56:13,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:56:13,780 INFO L85 PathProgramCache]: Analyzing trace with hash 2071917537, now seen corresponding path program 18 times [2022-01-28 12:56:13,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:56:13,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001753638] [2022-01-28 12:56:13,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:56:13,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:56:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:56:14,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:56:14,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:56:14,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001753638] [2022-01-28 12:56:14,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001753638] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:56:14,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:56:14,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:56:14,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174085920] [2022-01-28 12:56:14,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:56:14,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:56:14,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:56:14,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:56:14,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:56:14,283 INFO L87 Difference]: Start difference. First operand 5448 states and 14301 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:56:17,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:56:17,450 INFO L93 Difference]: Finished difference Result 6404 states and 16804 transitions. [2022-01-28 12:56:17,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-28 12:56:17,450 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:56:17,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:56:17,457 INFO L225 Difference]: With dead ends: 6404 [2022-01-28 12:56:17,457 INFO L226 Difference]: Without dead ends: 6064 [2022-01-28 12:56:17,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 663 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=978, Invalid=3312, Unknown=0, NotChecked=0, Total=4290 [2022-01-28 12:56:17,457 INFO L933 BasicCegarLoop]: 537 mSDtfsCounter, 1038 mSDsluCounter, 9056 mSDsCounter, 0 mSdLazyCounter, 1839 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1038 SdHoareTripleChecker+Valid, 9425 SdHoareTripleChecker+Invalid, 1842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 12:56:17,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1038 Valid, 9425 Invalid, 1842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1839 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 12:56:17,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6064 states. [2022-01-28 12:56:17,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6064 to 5368. [2022-01-28 12:56:17,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5368 states, 5367 states have (on average 2.6377864728898825) internal successors, (14157), 5367 states have internal predecessors, (14157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:56:17,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5368 states to 5368 states and 14157 transitions. [2022-01-28 12:56:17,518 INFO L78 Accepts]: Start accepts. Automaton has 5368 states and 14157 transitions. Word has length 137 [2022-01-28 12:56:17,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:56:17,518 INFO L470 AbstractCegarLoop]: Abstraction has 5368 states and 14157 transitions. [2022-01-28 12:56:17,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:56:17,518 INFO L276 IsEmpty]: Start isEmpty. Operand 5368 states and 14157 transitions. [2022-01-28 12:56:17,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:56:17,523 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:56:17,523 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:56:17,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-01-28 12:56:17,523 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:56:17,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:56:17,524 INFO L85 PathProgramCache]: Analyzing trace with hash -2023308581, now seen corresponding path program 19 times [2022-01-28 12:56:17,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:56:17,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172098706] [2022-01-28 12:56:17,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:56:17,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:56:17,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:56:17,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:56:17,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:56:17,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172098706] [2022-01-28 12:56:17,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172098706] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:56:17,972 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:56:17,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:56:17,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101444846] [2022-01-28 12:56:17,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:56:17,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:56:17,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:56:17,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:56:17,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:56:17,973 INFO L87 Difference]: Start difference. First operand 5368 states and 14157 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:56:28,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:56:28,116 INFO L93 Difference]: Finished difference Result 6832 states and 17936 transitions. [2022-01-28 12:56:28,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-01-28 12:56:28,116 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:56:28,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:56:28,123 INFO L225 Difference]: With dead ends: 6832 [2022-01-28 12:56:28,123 INFO L226 Difference]: Without dead ends: 5936 [2022-01-28 12:56:28,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2405 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=2624, Invalid=7678, Unknown=0, NotChecked=0, Total=10302 [2022-01-28 12:56:28,125 INFO L933 BasicCegarLoop]: 597 mSDtfsCounter, 1554 mSDsluCounter, 9531 mSDsCounter, 0 mSdLazyCounter, 1917 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1554 SdHoareTripleChecker+Valid, 9890 SdHoareTripleChecker+Invalid, 1920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 12:56:28,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1554 Valid, 9890 Invalid, 1920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1917 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 12:56:28,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5936 states. [2022-01-28 12:56:28,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5936 to 5352. [2022-01-28 12:56:28,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5352 states, 5351 states have (on average 2.638198467576154) internal successors, (14117), 5351 states have internal predecessors, (14117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:56:28,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5352 states to 5352 states and 14117 transitions. [2022-01-28 12:56:28,184 INFO L78 Accepts]: Start accepts. Automaton has 5352 states and 14117 transitions. Word has length 137 [2022-01-28 12:56:28,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:56:28,184 INFO L470 AbstractCegarLoop]: Abstraction has 5352 states and 14117 transitions. [2022-01-28 12:56:28,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:56:28,184 INFO L276 IsEmpty]: Start isEmpty. Operand 5352 states and 14117 transitions. [2022-01-28 12:56:28,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:56:28,189 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:56:28,190 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:56:28,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-01-28 12:56:28,190 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:56:28,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:56:28,190 INFO L85 PathProgramCache]: Analyzing trace with hash -217224763, now seen corresponding path program 20 times [2022-01-28 12:56:28,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:56:28,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795830639] [2022-01-28 12:56:28,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:56:28,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:56:28,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:56:28,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:56:28,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:56:28,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795830639] [2022-01-28 12:56:28,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795830639] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:56:28,682 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:56:28,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:56:28,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156793661] [2022-01-28 12:56:28,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:56:28,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:56:28,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:56:28,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:56:28,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:56:28,683 INFO L87 Difference]: Start difference. First operand 5352 states and 14117 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:56:36,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:56:36,522 INFO L93 Difference]: Finished difference Result 7348 states and 19206 transitions. [2022-01-28 12:56:36,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-01-28 12:56:36,522 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:56:36,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:56:36,533 INFO L225 Difference]: With dead ends: 7348 [2022-01-28 12:56:36,533 INFO L226 Difference]: Without dead ends: 6499 [2022-01-28 12:56:36,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2059 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=2381, Invalid=7125, Unknown=0, NotChecked=0, Total=9506 [2022-01-28 12:56:36,534 INFO L933 BasicCegarLoop]: 583 mSDtfsCounter, 1622 mSDsluCounter, 9684 mSDsCounter, 0 mSdLazyCounter, 2060 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1622 SdHoareTripleChecker+Valid, 10028 SdHoareTripleChecker+Invalid, 2063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-28 12:56:36,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1622 Valid, 10028 Invalid, 2063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2060 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-28 12:56:36,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6499 states. [2022-01-28 12:56:36,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6499 to 5460. [2022-01-28 12:56:36,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5460 states, 5459 states have (on average 2.630884777431764) internal successors, (14362), 5459 states have internal predecessors, (14362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:56:36,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5460 states to 5460 states and 14362 transitions. [2022-01-28 12:56:36,620 INFO L78 Accepts]: Start accepts. Automaton has 5460 states and 14362 transitions. Word has length 137 [2022-01-28 12:56:36,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:56:36,620 INFO L470 AbstractCegarLoop]: Abstraction has 5460 states and 14362 transitions. [2022-01-28 12:56:36,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:56:36,621 INFO L276 IsEmpty]: Start isEmpty. Operand 5460 states and 14362 transitions. [2022-01-28 12:56:36,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:56:36,626 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:56:36,627 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:56:36,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-01-28 12:56:36,627 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:56:36,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:56:36,627 INFO L85 PathProgramCache]: Analyzing trace with hash -486419407, now seen corresponding path program 21 times [2022-01-28 12:56:36,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:56:36,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003602476] [2022-01-28 12:56:36,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:56:36,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:56:36,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:56:37,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:56:37,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:56:37,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003602476] [2022-01-28 12:56:37,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003602476] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:56:37,073 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:56:37,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:56:37,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443631316] [2022-01-28 12:56:37,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:56:37,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:56:37,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:56:37,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:56:37,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:56:37,074 INFO L87 Difference]: Start difference. First operand 5460 states and 14362 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:56:45,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:56:45,943 INFO L93 Difference]: Finished difference Result 7026 states and 18348 transitions. [2022-01-28 12:56:45,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-01-28 12:56:45,944 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:56:45,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:56:45,952 INFO L225 Difference]: With dead ends: 7026 [2022-01-28 12:56:45,952 INFO L226 Difference]: Without dead ends: 6580 [2022-01-28 12:56:45,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1874 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=2112, Invalid=6630, Unknown=0, NotChecked=0, Total=8742 [2022-01-28 12:56:45,953 INFO L933 BasicCegarLoop]: 567 mSDtfsCounter, 1407 mSDsluCounter, 9621 mSDsCounter, 0 mSdLazyCounter, 2043 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1407 SdHoareTripleChecker+Valid, 9955 SdHoareTripleChecker+Invalid, 2046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 12:56:45,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1407 Valid, 9955 Invalid, 2046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2043 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 12:56:45,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6580 states. [2022-01-28 12:56:46,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6580 to 5464. [2022-01-28 12:56:46,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5464 states, 5463 states have (on average 2.630239794984441) internal successors, (14369), 5463 states have internal predecessors, (14369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:56:46,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5464 states to 5464 states and 14369 transitions. [2022-01-28 12:56:46,017 INFO L78 Accepts]: Start accepts. Automaton has 5464 states and 14369 transitions. Word has length 137 [2022-01-28 12:56:46,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:56:46,017 INFO L470 AbstractCegarLoop]: Abstraction has 5464 states and 14369 transitions. [2022-01-28 12:56:46,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:56:46,018 INFO L276 IsEmpty]: Start isEmpty. Operand 5464 states and 14369 transitions. [2022-01-28 12:56:46,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:56:46,023 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:56:46,023 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:56:46,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-01-28 12:56:46,023 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:56:46,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:56:46,023 INFO L85 PathProgramCache]: Analyzing trace with hash 102441007, now seen corresponding path program 22 times [2022-01-28 12:56:46,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:56:46,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061337684] [2022-01-28 12:56:46,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:56:46,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:56:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:56:46,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:56:46,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:56:46,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061337684] [2022-01-28 12:56:46,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061337684] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:56:46,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:56:46,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:56:46,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342289448] [2022-01-28 12:56:46,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:56:46,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:56:46,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:56:46,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:56:46,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:56:46,507 INFO L87 Difference]: Start difference. First operand 5464 states and 14369 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:56:51,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:56:51,381 INFO L93 Difference]: Finished difference Result 6800 states and 17830 transitions. [2022-01-28 12:56:51,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-28 12:56:51,381 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:56:51,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:56:51,389 INFO L225 Difference]: With dead ends: 6800 [2022-01-28 12:56:51,389 INFO L226 Difference]: Without dead ends: 6385 [2022-01-28 12:56:51,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1736 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=1860, Invalid=6150, Unknown=0, NotChecked=0, Total=8010 [2022-01-28 12:56:51,390 INFO L933 BasicCegarLoop]: 559 mSDtfsCounter, 1200 mSDsluCounter, 8442 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1200 SdHoareTripleChecker+Valid, 8816 SdHoareTripleChecker+Invalid, 1860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 12:56:51,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1200 Valid, 8816 Invalid, 1860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1857 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 12:56:51,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6385 states. [2022-01-28 12:56:51,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6385 to 5476. [2022-01-28 12:56:51,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5476 states, 5475 states have (on average 2.628310502283105) internal successors, (14390), 5475 states have internal predecessors, (14390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:56:51,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5476 states to 5476 states and 14390 transitions. [2022-01-28 12:56:51,465 INFO L78 Accepts]: Start accepts. Automaton has 5476 states and 14390 transitions. Word has length 137 [2022-01-28 12:56:51,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:56:51,465 INFO L470 AbstractCegarLoop]: Abstraction has 5476 states and 14390 transitions. [2022-01-28 12:56:51,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:56:51,465 INFO L276 IsEmpty]: Start isEmpty. Operand 5476 states and 14390 transitions. [2022-01-28 12:56:51,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:56:51,473 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:56:51,474 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:56:51,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-01-28 12:56:51,474 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:56:51,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:56:51,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1933766901, now seen corresponding path program 23 times [2022-01-28 12:56:51,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:56:51,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800227323] [2022-01-28 12:56:51,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:56:51,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:56:51,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:56:51,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:56:51,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:56:51,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800227323] [2022-01-28 12:56:51,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800227323] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:56:51,979 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:56:51,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:56:51,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109076003] [2022-01-28 12:56:51,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:56:51,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:56:51,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:56:51,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:56:51,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:56:51,980 INFO L87 Difference]: Start difference. First operand 5476 states and 14390 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:56:56,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:56:56,259 INFO L93 Difference]: Finished difference Result 6649 states and 17434 transitions. [2022-01-28 12:56:56,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-28 12:56:56,259 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:56:56,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:56:56,269 INFO L225 Difference]: With dead ends: 6649 [2022-01-28 12:56:56,270 INFO L226 Difference]: Without dead ends: 6327 [2022-01-28 12:56:56,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1329 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1520, Invalid=5122, Unknown=0, NotChecked=0, Total=6642 [2022-01-28 12:56:56,271 INFO L933 BasicCegarLoop]: 549 mSDtfsCounter, 1117 mSDsluCounter, 9235 mSDsCounter, 0 mSdLazyCounter, 1970 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 9581 SdHoareTripleChecker+Invalid, 1973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 12:56:56,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1117 Valid, 9581 Invalid, 1973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1970 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 12:56:56,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6327 states. [2022-01-28 12:56:56,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6327 to 5480. [2022-01-28 12:56:56,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5480 states, 5479 states have (on average 2.627669282715824) internal successors, (14397), 5479 states have internal predecessors, (14397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:56:56,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5480 states to 5480 states and 14397 transitions. [2022-01-28 12:56:56,350 INFO L78 Accepts]: Start accepts. Automaton has 5480 states and 14397 transitions. Word has length 137 [2022-01-28 12:56:56,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:56:56,350 INFO L470 AbstractCegarLoop]: Abstraction has 5480 states and 14397 transitions. [2022-01-28 12:56:56,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:56:56,350 INFO L276 IsEmpty]: Start isEmpty. Operand 5480 states and 14397 transitions. [2022-01-28 12:56:56,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:56:56,356 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:56:56,356 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:56:56,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-01-28 12:56:56,356 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:56:56,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:56:56,357 INFO L85 PathProgramCache]: Analyzing trace with hash -2065597559, now seen corresponding path program 24 times [2022-01-28 12:56:56,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:56:56,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237522006] [2022-01-28 12:56:56,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:56:56,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:56:56,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:56:56,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:56:56,850 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:56:56,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237522006] [2022-01-28 12:56:56,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237522006] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:56:56,850 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:56:56,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:56:56,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000908965] [2022-01-28 12:56:56,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:56:56,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:56:56,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:56:56,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:56:56,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:56:56,851 INFO L87 Difference]: Start difference. First operand 5480 states and 14397 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:57:02,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:57:02,668 INFO L93 Difference]: Finished difference Result 6560 states and 17204 transitions. [2022-01-28 12:57:02,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-28 12:57:02,668 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:57:02,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:57:02,677 INFO L225 Difference]: With dead ends: 6560 [2022-01-28 12:57:02,678 INFO L226 Difference]: Without dead ends: 6269 [2022-01-28 12:57:02,678 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 969 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=1230, Invalid=4172, Unknown=0, NotChecked=0, Total=5402 [2022-01-28 12:57:02,679 INFO L933 BasicCegarLoop]: 540 mSDtfsCounter, 1023 mSDsluCounter, 8256 mSDsCounter, 0 mSdLazyCounter, 1795 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1023 SdHoareTripleChecker+Valid, 8634 SdHoareTripleChecker+Invalid, 1798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-28 12:57:02,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1023 Valid, 8634 Invalid, 1798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1795 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-28 12:57:02,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6269 states. [2022-01-28 12:57:02,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6269 to 5484. [2022-01-28 12:57:02,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5484 states, 5483 states have (on average 2.627028998723327) internal successors, (14404), 5483 states have internal predecessors, (14404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:57:02,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5484 states to 5484 states and 14404 transitions. [2022-01-28 12:57:02,746 INFO L78 Accepts]: Start accepts. Automaton has 5484 states and 14404 transitions. Word has length 137 [2022-01-28 12:57:02,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:57:02,746 INFO L470 AbstractCegarLoop]: Abstraction has 5484 states and 14404 transitions. [2022-01-28 12:57:02,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:57:02,746 INFO L276 IsEmpty]: Start isEmpty. Operand 5484 states and 14404 transitions. [2022-01-28 12:57:02,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:57:02,752 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:57:02,752 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:57:02,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-01-28 12:57:02,752 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:57:02,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:57:02,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1811188083, now seen corresponding path program 25 times [2022-01-28 12:57:02,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:57:02,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708974893] [2022-01-28 12:57:02,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:57:02,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:57:02,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:57:03,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:57:03,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:57:03,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708974893] [2022-01-28 12:57:03,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708974893] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:57:03,256 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:57:03,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:57:03,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244494722] [2022-01-28 12:57:03,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:57:03,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:57:03,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:57:03,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:57:03,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:57:03,257 INFO L87 Difference]: Start difference. First operand 5484 states and 14404 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:57:07,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:57:07,241 INFO L93 Difference]: Finished difference Result 6417 states and 16838 transitions. [2022-01-28 12:57:07,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-28 12:57:07,242 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:57:07,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:57:07,251 INFO L225 Difference]: With dead ends: 6417 [2022-01-28 12:57:07,251 INFO L226 Difference]: Without dead ends: 6160 [2022-01-28 12:57:07,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 459 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=955, Invalid=2827, Unknown=0, NotChecked=0, Total=3782 [2022-01-28 12:57:07,252 INFO L933 BasicCegarLoop]: 524 mSDtfsCounter, 938 mSDsluCounter, 8863 mSDsCounter, 0 mSdLazyCounter, 1868 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 938 SdHoareTripleChecker+Valid, 9223 SdHoareTripleChecker+Invalid, 1871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 12:57:07,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [938 Valid, 9223 Invalid, 1871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1868 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 12:57:07,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6160 states. [2022-01-28 12:57:07,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6160 to 5488. [2022-01-28 12:57:07,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5488 states, 5487 states have (on average 2.6263896482595226) internal successors, (14411), 5487 states have internal predecessors, (14411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:57:07,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5488 states to 5488 states and 14411 transitions. [2022-01-28 12:57:07,322 INFO L78 Accepts]: Start accepts. Automaton has 5488 states and 14411 transitions. Word has length 137 [2022-01-28 12:57:07,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:57:07,322 INFO L470 AbstractCegarLoop]: Abstraction has 5488 states and 14411 transitions. [2022-01-28 12:57:07,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:57:07,322 INFO L276 IsEmpty]: Start isEmpty. Operand 5488 states and 14411 transitions. [2022-01-28 12:57:07,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:57:07,328 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:57:07,328 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:57:07,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-01-28 12:57:07,328 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:57:07,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:57:07,329 INFO L85 PathProgramCache]: Analyzing trace with hash -990957779, now seen corresponding path program 26 times [2022-01-28 12:57:07,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:57:07,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839836241] [2022-01-28 12:57:07,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:57:07,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:57:07,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:57:07,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:57:07,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:57:07,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839836241] [2022-01-28 12:57:07,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839836241] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:57:07,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:57:07,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:57:07,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372976395] [2022-01-28 12:57:07,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:57:07,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:57:07,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:57:07,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:57:07,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:57:07,825 INFO L87 Difference]: Start difference. First operand 5488 states and 14411 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:57:11,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:57:11,743 INFO L93 Difference]: Finished difference Result 6388 states and 16756 transitions. [2022-01-28 12:57:11,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-28 12:57:11,743 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:57:11,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:57:11,750 INFO L225 Difference]: With dead ends: 6388 [2022-01-28 12:57:11,750 INFO L226 Difference]: Without dead ends: 6048 [2022-01-28 12:57:11,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 613 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=987, Invalid=3303, Unknown=0, NotChecked=0, Total=4290 [2022-01-28 12:57:11,751 INFO L933 BasicCegarLoop]: 532 mSDtfsCounter, 920 mSDsluCounter, 9786 mSDsCounter, 0 mSdLazyCounter, 2059 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 920 SdHoareTripleChecker+Valid, 10122 SdHoareTripleChecker+Invalid, 2062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 12:57:11,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [920 Valid, 10122 Invalid, 2062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2059 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 12:57:11,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6048 states. [2022-01-28 12:57:11,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6048 to 5408. [2022-01-28 12:57:11,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5408 states, 5407 states have (on average 2.629739226928056) internal successors, (14219), 5407 states have internal predecessors, (14219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:57:11,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5408 states to 5408 states and 14219 transitions. [2022-01-28 12:57:11,819 INFO L78 Accepts]: Start accepts. Automaton has 5408 states and 14219 transitions. Word has length 137 [2022-01-28 12:57:11,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:57:11,819 INFO L470 AbstractCegarLoop]: Abstraction has 5408 states and 14219 transitions. [2022-01-28 12:57:11,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:57:11,819 INFO L276 IsEmpty]: Start isEmpty. Operand 5408 states and 14219 transitions. [2022-01-28 12:57:11,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:57:11,825 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:57:11,825 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:57:11,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-01-28 12:57:11,826 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:57:11,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:57:11,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1945541703, now seen corresponding path program 27 times [2022-01-28 12:57:11,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:57:11,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193810188] [2022-01-28 12:57:11,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:57:11,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:57:11,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:57:12,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:57:12,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:57:12,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193810188] [2022-01-28 12:57:12,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193810188] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:57:12,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:57:12,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:57:12,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064363759] [2022-01-28 12:57:12,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:57:12,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:57:12,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:57:12,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:57:12,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:57:12,298 INFO L87 Difference]: Start difference. First operand 5408 states and 14219 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:57:16,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:57:16,610 INFO L93 Difference]: Finished difference Result 6437 states and 16883 transitions. [2022-01-28 12:57:16,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-01-28 12:57:16,610 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:57:16,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:57:16,619 INFO L225 Difference]: With dead ends: 6437 [2022-01-28 12:57:16,619 INFO L226 Difference]: Without dead ends: 6115 [2022-01-28 12:57:16,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1266 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1522, Invalid=4958, Unknown=0, NotChecked=0, Total=6480 [2022-01-28 12:57:16,620 INFO L933 BasicCegarLoop]: 536 mSDtfsCounter, 1065 mSDsluCounter, 9201 mSDsCounter, 0 mSdLazyCounter, 1972 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1065 SdHoareTripleChecker+Valid, 9532 SdHoareTripleChecker+Invalid, 1975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 12:57:16,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1065 Valid, 9532 Invalid, 1975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1972 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 12:57:16,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6115 states. [2022-01-28 12:57:16,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6115 to 5432. [2022-01-28 12:57:16,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5432 states, 5431 states have (on average 2.6295341557724177) internal successors, (14281), 5431 states have internal predecessors, (14281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:57:16,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5432 states to 5432 states and 14281 transitions. [2022-01-28 12:57:16,715 INFO L78 Accepts]: Start accepts. Automaton has 5432 states and 14281 transitions. Word has length 137 [2022-01-28 12:57:16,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:57:16,715 INFO L470 AbstractCegarLoop]: Abstraction has 5432 states and 14281 transitions. [2022-01-28 12:57:16,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:57:16,715 INFO L276 IsEmpty]: Start isEmpty. Operand 5432 states and 14281 transitions. [2022-01-28 12:57:16,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:57:16,721 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:57:16,721 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:57:16,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-01-28 12:57:16,721 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:57:16,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:57:16,722 INFO L85 PathProgramCache]: Analyzing trace with hash -2053822757, now seen corresponding path program 28 times [2022-01-28 12:57:16,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:57:16,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128822561] [2022-01-28 12:57:16,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:57:16,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:57:16,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:57:17,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:57:17,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:57:17,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128822561] [2022-01-28 12:57:17,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128822561] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:57:17,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:57:17,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:57:17,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840991493] [2022-01-28 12:57:17,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:57:17,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:57:17,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:57:17,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:57:17,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:57:17,196 INFO L87 Difference]: Start difference. First operand 5432 states and 14281 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:57:21,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:57:21,520 INFO L93 Difference]: Finished difference Result 6380 states and 16741 transitions. [2022-01-28 12:57:21,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-28 12:57:21,520 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:57:21,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:57:21,529 INFO L225 Difference]: With dead ends: 6380 [2022-01-28 12:57:21,529 INFO L226 Difference]: Without dead ends: 6089 [2022-01-28 12:57:21,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 902 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1257, Invalid=4145, Unknown=0, NotChecked=0, Total=5402 [2022-01-28 12:57:21,530 INFO L933 BasicCegarLoop]: 530 mSDtfsCounter, 1079 mSDsluCounter, 8934 mSDsCounter, 0 mSdLazyCounter, 1929 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 9281 SdHoareTripleChecker+Invalid, 1932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 12:57:21,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1079 Valid, 9281 Invalid, 1932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1929 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 12:57:21,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6089 states. [2022-01-28 12:57:21,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6089 to 5436. [2022-01-28 12:57:21,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5435 states have (on average 2.628886844526219) internal successors, (14288), 5435 states have internal predecessors, (14288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:57:21,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 14288 transitions. [2022-01-28 12:57:21,594 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 14288 transitions. Word has length 137 [2022-01-28 12:57:21,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:57:21,594 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 14288 transitions. [2022-01-28 12:57:21,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:57:21,595 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 14288 transitions. [2022-01-28 12:57:21,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:57:21,601 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:57:21,601 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:57:21,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-01-28 12:57:21,601 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:57:21,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:57:21,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1822962885, now seen corresponding path program 29 times [2022-01-28 12:57:21,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:57:21,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318071219] [2022-01-28 12:57:21,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:57:21,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:57:21,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:57:22,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:57:22,123 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:57:22,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318071219] [2022-01-28 12:57:22,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318071219] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:57:22,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:57:22,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:57:22,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897029798] [2022-01-28 12:57:22,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:57:22,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:57:22,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:57:22,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:57:22,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:57:22,124 INFO L87 Difference]: Start difference. First operand 5436 states and 14288 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:57:28,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:57:28,807 INFO L93 Difference]: Finished difference Result 6277 states and 16477 transitions. [2022-01-28 12:57:28,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-28 12:57:28,807 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:57:28,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:57:28,815 INFO L225 Difference]: With dead ends: 6277 [2022-01-28 12:57:28,815 INFO L226 Difference]: Without dead ends: 6020 [2022-01-28 12:57:28,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 555 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=1028, Invalid=3004, Unknown=0, NotChecked=0, Total=4032 [2022-01-28 12:57:28,815 INFO L933 BasicCegarLoop]: 518 mSDtfsCounter, 923 mSDsluCounter, 8453 mSDsCounter, 0 mSdLazyCounter, 1818 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 923 SdHoareTripleChecker+Valid, 8814 SdHoareTripleChecker+Invalid, 1821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 12:57:28,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [923 Valid, 8814 Invalid, 1821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1818 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 12:57:28,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6020 states. [2022-01-28 12:57:28,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6020 to 5440. [2022-01-28 12:57:28,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5439 states have (on average 2.6282404853833423) internal successors, (14295), 5439 states have internal predecessors, (14295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:57:28,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14295 transitions. [2022-01-28 12:57:28,894 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14295 transitions. Word has length 137 [2022-01-28 12:57:28,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:57:28,895 INFO L470 AbstractCegarLoop]: Abstraction has 5440 states and 14295 transitions. [2022-01-28 12:57:28,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:57:28,895 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14295 transitions. [2022-01-28 12:57:28,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:57:28,902 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:57:28,902 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:57:28,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-01-28 12:57:28,902 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:57:28,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:57:28,903 INFO L85 PathProgramCache]: Analyzing trace with hash -979182977, now seen corresponding path program 30 times [2022-01-28 12:57:28,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:57:28,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146430049] [2022-01-28 12:57:28,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:57:28,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:57:28,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:57:29,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:57:29,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:57:29,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146430049] [2022-01-28 12:57:29,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146430049] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:57:29,383 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:57:29,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:57:29,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480204056] [2022-01-28 12:57:29,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:57:29,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:57:29,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:57:29,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:57:29,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:57:29,384 INFO L87 Difference]: Start difference. First operand 5440 states and 14295 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:57:33,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:57:33,216 INFO L93 Difference]: Finished difference Result 6248 states and 16395 transitions. [2022-01-28 12:57:33,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-28 12:57:33,216 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:57:33,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:57:33,223 INFO L225 Difference]: With dead ends: 6248 [2022-01-28 12:57:33,223 INFO L226 Difference]: Without dead ends: 5976 [2022-01-28 12:57:33,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1003, Invalid=3287, Unknown=0, NotChecked=0, Total=4290 [2022-01-28 12:57:33,223 INFO L933 BasicCegarLoop]: 523 mSDtfsCounter, 1010 mSDsluCounter, 8937 mSDsCounter, 0 mSdLazyCounter, 1945 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 9287 SdHoareTripleChecker+Invalid, 1948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 12:57:33,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1010 Valid, 9287 Invalid, 1948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1945 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 12:57:33,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5976 states. [2022-01-28 12:57:33,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5976 to 5428. [2022-01-28 12:57:33,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5428 states, 5427 states have (on average 2.6294453657637735) internal successors, (14270), 5427 states have internal predecessors, (14270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:57:33,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5428 states to 5428 states and 14270 transitions. [2022-01-28 12:57:33,282 INFO L78 Accepts]: Start accepts. Automaton has 5428 states and 14270 transitions. Word has length 137 [2022-01-28 12:57:33,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:57:33,282 INFO L470 AbstractCegarLoop]: Abstraction has 5428 states and 14270 transitions. [2022-01-28 12:57:33,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:57:33,282 INFO L276 IsEmpty]: Start isEmpty. Operand 5428 states and 14270 transitions. [2022-01-28 12:57:33,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:57:33,287 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:57:33,287 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:57:33,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-01-28 12:57:33,288 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:57:33,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:57:33,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1535630111, now seen corresponding path program 31 times [2022-01-28 12:57:33,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:57:33,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289521871] [2022-01-28 12:57:33,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:57:33,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:57:33,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:57:33,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:57:33,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:57:33,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289521871] [2022-01-28 12:57:33,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289521871] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:57:33,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:57:33,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:57:33,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456411566] [2022-01-28 12:57:33,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:57:33,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:57:33,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:57:33,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:57:33,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:57:33,771 INFO L87 Difference]: Start difference. First operand 5428 states and 14270 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:57:40,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:57:40,310 INFO L93 Difference]: Finished difference Result 6193 states and 16254 transitions. [2022-01-28 12:57:40,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-28 12:57:40,310 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:57:40,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:57:40,317 INFO L225 Difference]: With dead ends: 6193 [2022-01-28 12:57:40,317 INFO L226 Difference]: Without dead ends: 5908 [2022-01-28 12:57:40,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 726 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=1290, Invalid=3540, Unknown=0, NotChecked=0, Total=4830 [2022-01-28 12:57:40,318 INFO L933 BasicCegarLoop]: 520 mSDtfsCounter, 971 mSDsluCounter, 8579 mSDsCounter, 0 mSdLazyCounter, 1809 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 8928 SdHoareTripleChecker+Invalid, 1812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-28 12:57:40,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [971 Valid, 8928 Invalid, 1812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1809 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-28 12:57:40,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5908 states. [2022-01-28 12:57:40,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5908 to 5436. [2022-01-28 12:57:40,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5435 states have (on average 2.628886844526219) internal successors, (14288), 5435 states have internal predecessors, (14288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:57:40,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 14288 transitions. [2022-01-28 12:57:40,383 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 14288 transitions. Word has length 137 [2022-01-28 12:57:40,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:57:40,383 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 14288 transitions. [2022-01-28 12:57:40,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:57:40,383 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 14288 transitions. [2022-01-28 12:57:40,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:57:40,389 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:57:40,389 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:57:40,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-01-28 12:57:40,389 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:57:40,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:57:40,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1515375091, now seen corresponding path program 32 times [2022-01-28 12:57:40,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:57:40,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648421243] [2022-01-28 12:57:40,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:57:40,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:57:40,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:57:40,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:57:40,911 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:57:40,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648421243] [2022-01-28 12:57:40,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648421243] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:57:40,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:57:40,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:57:40,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834421326] [2022-01-28 12:57:40,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:57:40,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:57:40,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:57:40,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:57:40,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:57:40,912 INFO L87 Difference]: Start difference. First operand 5436 states and 14288 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:57:46,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:57:46,583 INFO L93 Difference]: Finished difference Result 6201 states and 16272 transitions. [2022-01-28 12:57:46,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-28 12:57:46,583 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:57:46,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:57:46,590 INFO L225 Difference]: With dead ends: 6201 [2022-01-28 12:57:46,590 INFO L226 Difference]: Without dead ends: 5944 [2022-01-28 12:57:46,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 604 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=1104, Invalid=3186, Unknown=0, NotChecked=0, Total=4290 [2022-01-28 12:57:46,591 INFO L933 BasicCegarLoop]: 520 mSDtfsCounter, 969 mSDsluCounter, 8433 mSDsCounter, 0 mSdLazyCounter, 1815 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 969 SdHoareTripleChecker+Valid, 8798 SdHoareTripleChecker+Invalid, 1818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-28 12:57:46,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [969 Valid, 8798 Invalid, 1818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1815 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-28 12:57:46,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5944 states. [2022-01-28 12:57:46,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5944 to 5440. [2022-01-28 12:57:46,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5439 states have (on average 2.6282404853833423) internal successors, (14295), 5439 states have internal predecessors, (14295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:57:46,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14295 transitions. [2022-01-28 12:57:46,657 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14295 transitions. Word has length 137 [2022-01-28 12:57:46,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:57:46,657 INFO L470 AbstractCegarLoop]: Abstraction has 5440 states and 14295 transitions. [2022-01-28 12:57:46,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:57:46,657 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14295 transitions. [2022-01-28 12:57:46,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:57:46,663 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:57:46,663 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] [2022-01-28 12:57:46,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-01-28 12:57:46,663 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:57:46,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:57:46,664 INFO L85 PathProgramCache]: Analyzing trace with hash -22553657, now seen corresponding path program 33 times [2022-01-28 12:57:46,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:57:46,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455031792] [2022-01-28 12:57:46,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:57:46,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:57:46,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:57:47,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:57:47,141 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:57:47,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455031792] [2022-01-28 12:57:47,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455031792] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:57:47,141 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:57:47,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:57:47,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288105141] [2022-01-28 12:57:47,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:57:47,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:57:47,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:57:47,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:57:47,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:57:47,142 INFO L87 Difference]: Start difference. First operand 5440 states and 14295 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:57:50,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:57:50,744 INFO L93 Difference]: Finished difference Result 6172 states and 16190 transitions. [2022-01-28 12:57:50,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-28 12:57:50,744 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:57:50,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:57:50,752 INFO L225 Difference]: With dead ends: 6172 [2022-01-28 12:57:50,752 INFO L226 Difference]: Without dead ends: 5904 [2022-01-28 12:57:50,753 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=969, Invalid=3191, Unknown=0, NotChecked=0, Total=4160 [2022-01-28 12:57:50,753 INFO L933 BasicCegarLoop]: 526 mSDtfsCounter, 999 mSDsluCounter, 8848 mSDsCounter, 0 mSdLazyCounter, 1907 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 9206 SdHoareTripleChecker+Invalid, 1910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 12:57:50,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [999 Valid, 9206 Invalid, 1910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1907 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 12:57:50,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5904 states. [2022-01-28 12:57:50,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5904 to 5432. [2022-01-28 12:57:50,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5432 states, 5431 states have (on average 2.628797643159639) internal successors, (14277), 5431 states have internal predecessors, (14277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:57:50,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5432 states to 5432 states and 14277 transitions. [2022-01-28 12:57:50,851 INFO L78 Accepts]: Start accepts. Automaton has 5432 states and 14277 transitions. Word has length 137 [2022-01-28 12:57:50,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:57:50,851 INFO L470 AbstractCegarLoop]: Abstraction has 5432 states and 14277 transitions. [2022-01-28 12:57:50,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:57:50,851 INFO L276 IsEmpty]: Start isEmpty. Operand 5432 states and 14277 transitions. [2022-01-28 12:57:50,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:57:50,856 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:57:50,856 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:57:50,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-01-28 12:57:50,857 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:57:50,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:57:50,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1014872227, now seen corresponding path program 34 times [2022-01-28 12:57:50,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:57:50,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042589913] [2022-01-28 12:57:50,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:57:50,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:57:50,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:57:51,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:57:51,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:57:51,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042589913] [2022-01-28 12:57:51,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042589913] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:57:51,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:57:51,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:57:51,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147177612] [2022-01-28 12:57:51,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:57:51,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:57:51,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:57:51,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:57:51,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:57:51,381 INFO L87 Difference]: Start difference. First operand 5432 states and 14277 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:58:04,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:58:04,379 INFO L93 Difference]: Finished difference Result 6304 states and 16532 transitions. [2022-01-28 12:58:04,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-28 12:58:04,379 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:58:04,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:58:04,386 INFO L225 Difference]: With dead ends: 6304 [2022-01-28 12:58:04,386 INFO L226 Difference]: Without dead ends: 6013 [2022-01-28 12:58:04,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 917 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=1227, Invalid=4029, Unknown=0, NotChecked=0, Total=5256 [2022-01-28 12:58:04,387 INFO L933 BasicCegarLoop]: 533 mSDtfsCounter, 1071 mSDsluCounter, 8507 mSDsCounter, 0 mSdLazyCounter, 1834 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 8869 SdHoareTripleChecker+Invalid, 1837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 12:58:04,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1071 Valid, 8869 Invalid, 1837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1834 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 12:58:04,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6013 states. [2022-01-28 12:58:04,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6013 to 5436. [2022-01-28 12:58:04,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5435 states have (on average 2.6281508739650414) internal successors, (14284), 5435 states have internal predecessors, (14284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:58:04,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 14284 transitions. [2022-01-28 12:58:04,453 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 14284 transitions. Word has length 137 [2022-01-28 12:58:04,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:58:04,453 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 14284 transitions. [2022-01-28 12:58:04,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:58:04,453 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 14284 transitions. [2022-01-28 12:58:04,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:58:04,459 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:58:04,459 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] [2022-01-28 12:58:04,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-01-28 12:58:04,459 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:58:04,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:58:04,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1433053881, now seen corresponding path program 35 times [2022-01-28 12:58:04,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:58:04,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527784353] [2022-01-28 12:58:04,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:58:04,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:58:04,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:58:04,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:58:04,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:58:04,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527784353] [2022-01-28 12:58:04,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527784353] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:58:04,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:58:04,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:58:04,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559449287] [2022-01-28 12:58:04,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:58:04,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:58:04,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:58:04,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:58:04,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:58:04,950 INFO L87 Difference]: Start difference. First operand 5436 states and 14284 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:58:10,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:58:10,506 INFO L93 Difference]: Finished difference Result 6201 states and 16268 transitions. [2022-01-28 12:58:10,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-28 12:58:10,506 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:58:10,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:58:10,513 INFO L225 Difference]: With dead ends: 6201 [2022-01-28 12:58:10,513 INFO L226 Difference]: Without dead ends: 5944 [2022-01-28 12:58:10,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=1065, Invalid=3095, Unknown=0, NotChecked=0, Total=4160 [2022-01-28 12:58:10,514 INFO L933 BasicCegarLoop]: 520 mSDtfsCounter, 988 mSDsluCounter, 8302 mSDsCounter, 0 mSdLazyCounter, 1765 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 8672 SdHoareTripleChecker+Invalid, 1768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-28 12:58:10,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [988 Valid, 8672 Invalid, 1768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1765 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-28 12:58:10,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5944 states. [2022-01-28 12:58:10,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5944 to 5440. [2022-01-28 12:58:10,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5439 states have (on average 2.6275050560764845) internal successors, (14291), 5439 states have internal predecessors, (14291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:58:10,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14291 transitions. [2022-01-28 12:58:10,580 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14291 transitions. Word has length 137 [2022-01-28 12:58:10,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:58:10,580 INFO L470 AbstractCegarLoop]: Abstraction has 5440 states and 14291 transitions. [2022-01-28 12:58:10,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:58:10,580 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14291 transitions. [2022-01-28 12:58:10,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:58:10,586 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:58:10,586 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:58:10,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-01-28 12:58:10,586 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:58:10,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:58:10,586 INFO L85 PathProgramCache]: Analyzing trace with hash 59767553, now seen corresponding path program 36 times [2022-01-28 12:58:10,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:58:10,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938092675] [2022-01-28 12:58:10,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:58:10,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:58:10,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:58:11,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:58:11,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:58:11,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938092675] [2022-01-28 12:58:11,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938092675] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:58:11,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:58:11,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:58:11,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599976008] [2022-01-28 12:58:11,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:58:11,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:58:11,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:58:11,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:58:11,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:58:11,149 INFO L87 Difference]: Start difference. First operand 5440 states and 14291 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:58:14,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:58:14,444 INFO L93 Difference]: Finished difference Result 6172 states and 16186 transitions. [2022-01-28 12:58:14,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-28 12:58:14,445 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:58:14,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:58:14,451 INFO L225 Difference]: With dead ends: 6172 [2022-01-28 12:58:14,451 INFO L226 Difference]: Without dead ends: 5896 [2022-01-28 12:58:14,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 646 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1011, Invalid=3279, Unknown=0, NotChecked=0, Total=4290 [2022-01-28 12:58:14,452 INFO L933 BasicCegarLoop]: 528 mSDtfsCounter, 997 mSDsluCounter, 9156 mSDsCounter, 0 mSdLazyCounter, 1976 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 9505 SdHoareTripleChecker+Invalid, 1979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 12:58:14,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [997 Valid, 9505 Invalid, 1979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1976 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 12:58:14,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5896 states. [2022-01-28 12:58:14,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5896 to 5424. [2022-01-28 12:58:14,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5424 states, 5423 states have (on average 2.629356444772266) internal successors, (14259), 5423 states have internal predecessors, (14259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:58:14,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5424 states to 5424 states and 14259 transitions. [2022-01-28 12:58:14,516 INFO L78 Accepts]: Start accepts. Automaton has 5424 states and 14259 transitions. Word has length 137 [2022-01-28 12:58:14,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:58:14,516 INFO L470 AbstractCegarLoop]: Abstraction has 5424 states and 14259 transitions. [2022-01-28 12:58:14,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:58:14,516 INFO L276 IsEmpty]: Start isEmpty. Operand 5424 states and 14259 transitions. [2022-01-28 12:58:14,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:58:14,522 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:58:14,522 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:58:14,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-01-28 12:58:14,522 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:58:14,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:58:14,522 INFO L85 PathProgramCache]: Analyzing trace with hash 40724957, now seen corresponding path program 37 times [2022-01-28 12:58:14,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:58:14,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85498594] [2022-01-28 12:58:14,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:58:14,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:58:14,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:58:14,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:58:14,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:58:14,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85498594] [2022-01-28 12:58:14,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85498594] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:58:14,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:58:14,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:58:14,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239216167] [2022-01-28 12:58:14,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:58:14,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:58:14,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:58:14,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:58:14,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:58:14,989 INFO L87 Difference]: Start difference. First operand 5424 states and 14259 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:58:20,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:58:20,400 INFO L93 Difference]: Finished difference Result 6568 states and 17212 transitions. [2022-01-28 12:58:20,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-01-28 12:58:20,400 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:58:20,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:58:20,409 INFO L225 Difference]: With dead ends: 6568 [2022-01-28 12:58:20,409 INFO L226 Difference]: Without dead ends: 6153 [2022-01-28 12:58:20,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1600 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=1854, Invalid=5978, Unknown=0, NotChecked=0, Total=7832 [2022-01-28 12:58:20,410 INFO L933 BasicCegarLoop]: 549 mSDtfsCounter, 1206 mSDsluCounter, 9332 mSDsCounter, 0 mSdLazyCounter, 2007 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 9662 SdHoareTripleChecker+Invalid, 2010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 12:58:20,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1206 Valid, 9662 Invalid, 2010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2007 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 12:58:20,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6153 states. [2022-01-28 12:58:20,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6153 to 5436. [2022-01-28 12:58:20,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5435 states have (on average 2.6274149034038636) internal successors, (14280), 5435 states have internal predecessors, (14280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:58:20,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 14280 transitions. [2022-01-28 12:58:20,495 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 14280 transitions. Word has length 137 [2022-01-28 12:58:20,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:58:20,495 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 14280 transitions. [2022-01-28 12:58:20,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:58:20,495 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 14280 transitions. [2022-01-28 12:58:20,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:58:20,501 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:58:20,501 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:58:20,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-01-28 12:58:20,501 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:58:20,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:58:20,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1859617531, now seen corresponding path program 38 times [2022-01-28 12:58:20,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:58:20,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417541963] [2022-01-28 12:58:20,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:58:20,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:58:20,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:58:20,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:58:20,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:58:20,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417541963] [2022-01-28 12:58:20,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417541963] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:58:20,990 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:58:20,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:58:20,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389027065] [2022-01-28 12:58:20,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:58:20,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:58:20,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:58:20,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:58:20,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:58:20,991 INFO L87 Difference]: Start difference. First operand 5436 states and 14280 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:58:25,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:58:25,935 INFO L93 Difference]: Finished difference Result 6417 states and 16816 transitions. [2022-01-28 12:58:25,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-28 12:58:25,935 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:58:25,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:58:25,944 INFO L225 Difference]: With dead ends: 6417 [2022-01-28 12:58:25,944 INFO L226 Difference]: Without dead ends: 6095 [2022-01-28 12:58:25,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1254 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=1546, Invalid=5096, Unknown=0, NotChecked=0, Total=6642 [2022-01-28 12:58:25,945 INFO L933 BasicCegarLoop]: 542 mSDtfsCounter, 1169 mSDsluCounter, 9869 mSDsCounter, 0 mSdLazyCounter, 2103 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1169 SdHoareTripleChecker+Valid, 10185 SdHoareTripleChecker+Invalid, 2106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-28 12:58:25,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1169 Valid, 10185 Invalid, 2106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2103 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-28 12:58:25,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6095 states. [2022-01-28 12:58:25,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6095 to 5440. [2022-01-28 12:58:26,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5439 states have (on average 2.6267696267696268) internal successors, (14287), 5439 states have internal predecessors, (14287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:58:26,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14287 transitions. [2022-01-28 12:58:26,008 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14287 transitions. Word has length 137 [2022-01-28 12:58:26,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:58:26,008 INFO L470 AbstractCegarLoop]: Abstraction has 5440 states and 14287 transitions. [2022-01-28 12:58:26,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:58:26,009 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14287 transitions. [2022-01-28 12:58:26,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:58:26,014 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:58:26,014 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:58:26,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-01-28 12:58:26,014 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:58:26,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:58:26,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1564014695, now seen corresponding path program 39 times [2022-01-28 12:58:26,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:58:26,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524847444] [2022-01-28 12:58:26,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:58:26,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:58:26,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:58:26,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:58:26,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:58:26,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524847444] [2022-01-28 12:58:26,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524847444] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:58:26,486 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:58:26,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:58:26,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493449627] [2022-01-28 12:58:26,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:58:26,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:58:26,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:58:26,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:58:26,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:58:26,487 INFO L87 Difference]: Start difference. First operand 5440 states and 14287 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:58:30,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:58:30,301 INFO L93 Difference]: Finished difference Result 6328 states and 16586 transitions. [2022-01-28 12:58:30,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-28 12:58:30,301 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:58:30,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:58:30,310 INFO L225 Difference]: With dead ends: 6328 [2022-01-28 12:58:30,310 INFO L226 Difference]: Without dead ends: 6037 [2022-01-28 12:58:30,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 961 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1250, Invalid=4152, Unknown=0, NotChecked=0, Total=5402 [2022-01-28 12:58:30,311 INFO L933 BasicCegarLoop]: 533 mSDtfsCounter, 1053 mSDsluCounter, 9611 mSDsCounter, 0 mSdLazyCounter, 2032 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 9941 SdHoareTripleChecker+Invalid, 2035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 12:58:30,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1053 Valid, 9941 Invalid, 2035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2032 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 12:58:30,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6037 states. [2022-01-28 12:58:30,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6037 to 5444. [2022-01-28 12:58:30,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5444 states, 5443 states have (on average 2.6261252985485943) internal successors, (14294), 5443 states have internal predecessors, (14294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:58:30,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5444 states to 5444 states and 14294 transitions. [2022-01-28 12:58:30,396 INFO L78 Accepts]: Start accepts. Automaton has 5444 states and 14294 transitions. Word has length 137 [2022-01-28 12:58:30,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:58:30,396 INFO L470 AbstractCegarLoop]: Abstraction has 5444 states and 14294 transitions. [2022-01-28 12:58:30,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:58:30,396 INFO L276 IsEmpty]: Start isEmpty. Operand 5444 states and 14294 transitions. [2022-01-28 12:58:30,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:58:30,402 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:58:30,403 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:58:30,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-01-28 12:58:30,403 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:58:30,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:58:30,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1982196349, now seen corresponding path program 40 times [2022-01-28 12:58:30,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:58:30,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373852900] [2022-01-28 12:58:30,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:58:30,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:58:30,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:58:30,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:58:30,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:58:30,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373852900] [2022-01-28 12:58:30,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373852900] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:58:30,874 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:58:30,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:58:30,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030138683] [2022-01-28 12:58:30,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:58:30,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:58:30,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:58:30,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:58:30,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:58:30,875 INFO L87 Difference]: Start difference. First operand 5444 states and 14294 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:58:36,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:58:36,146 INFO L93 Difference]: Finished difference Result 6209 states and 16278 transitions. [2022-01-28 12:58:36,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-28 12:58:36,146 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:58:36,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:58:36,153 INFO L225 Difference]: With dead ends: 6209 [2022-01-28 12:58:36,153 INFO L226 Difference]: Without dead ends: 5952 [2022-01-28 12:58:36,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=993, Invalid=2913, Unknown=0, NotChecked=0, Total=3906 [2022-01-28 12:58:36,154 INFO L933 BasicCegarLoop]: 517 mSDtfsCounter, 970 mSDsluCounter, 9256 mSDsCounter, 0 mSdLazyCounter, 1934 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 9596 SdHoareTripleChecker+Invalid, 1937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 12:58:36,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [970 Valid, 9596 Invalid, 1937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1934 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 12:58:36,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5952 states. [2022-01-28 12:58:36,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5952 to 5448. [2022-01-28 12:58:36,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5448 states, 5447 states have (on average 2.625481916651368) internal successors, (14301), 5447 states have internal predecessors, (14301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:58:36,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5448 states to 5448 states and 14301 transitions. [2022-01-28 12:58:36,218 INFO L78 Accepts]: Start accepts. Automaton has 5448 states and 14301 transitions. Word has length 137 [2022-01-28 12:58:36,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:58:36,218 INFO L470 AbstractCegarLoop]: Abstraction has 5448 states and 14301 transitions. [2022-01-28 12:58:36,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:58:36,218 INFO L276 IsEmpty]: Start isEmpty. Operand 5448 states and 14301 transitions. [2022-01-28 12:58:36,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:58:36,224 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:58:36,224 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:58:36,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-01-28 12:58:36,224 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:58:36,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:58:36,224 INFO L85 PathProgramCache]: Analyzing trace with hash -489374915, now seen corresponding path program 41 times [2022-01-28 12:58:36,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:58:36,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479545760] [2022-01-28 12:58:36,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:58:36,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:58:36,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:58:36,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:58:36,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:58:36,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479545760] [2022-01-28 12:58:36,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479545760] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:58:36,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:58:36,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:58:36,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494285298] [2022-01-28 12:58:36,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:58:36,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:58:36,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:58:36,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:58:36,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:58:36,697 INFO L87 Difference]: Start difference. First operand 5448 states and 14301 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:58:39,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:58:39,952 INFO L93 Difference]: Finished difference Result 6180 states and 16196 transitions. [2022-01-28 12:58:39,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-28 12:58:39,952 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:58:39,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:58:39,960 INFO L225 Difference]: With dead ends: 6180 [2022-01-28 12:58:39,961 INFO L226 Difference]: Without dead ends: 5884 [2022-01-28 12:58:39,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1001, Invalid=3289, Unknown=0, NotChecked=0, Total=4290 [2022-01-28 12:58:39,962 INFO L933 BasicCegarLoop]: 525 mSDtfsCounter, 915 mSDsluCounter, 8896 mSDsCounter, 0 mSdLazyCounter, 1900 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 915 SdHoareTripleChecker+Valid, 9250 SdHoareTripleChecker+Invalid, 1903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 12:58:39,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [915 Valid, 9250 Invalid, 1903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1900 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 12:58:39,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5884 states. [2022-01-28 12:58:40,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5884 to 5412. [2022-01-28 12:58:40,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5412 states, 5411 states have (on average 2.629088892995749) internal successors, (14226), 5411 states have internal predecessors, (14226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:58:40,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5412 states to 5412 states and 14226 transitions. [2022-01-28 12:58:40,051 INFO L78 Accepts]: Start accepts. Automaton has 5412 states and 14226 transitions. Word has length 137 [2022-01-28 12:58:40,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:58:40,052 INFO L470 AbstractCegarLoop]: Abstraction has 5412 states and 14226 transitions. [2022-01-28 12:58:40,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:58:40,052 INFO L276 IsEmpty]: Start isEmpty. Operand 5412 states and 14226 transitions. [2022-01-28 12:58:40,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:58:40,057 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:58:40,057 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:58:40,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-01-28 12:58:40,057 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:58:40,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:58:40,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1311377081, now seen corresponding path program 42 times [2022-01-28 12:58:40,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:58:40,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897777846] [2022-01-28 12:58:40,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:58:40,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:58:40,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:58:40,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:58:40,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:58:40,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897777846] [2022-01-28 12:58:40,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897777846] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:58:40,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:58:40,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:58:40,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913770505] [2022-01-28 12:58:40,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:58:40,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:58:40,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:58:40,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:58:40,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:58:40,529 INFO L87 Difference]: Start difference. First operand 5412 states and 14226 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:58:45,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:58:45,940 INFO L93 Difference]: Finished difference Result 6810 states and 17762 transitions. [2022-01-28 12:58:45,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-01-28 12:58:45,940 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:58:45,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:58:45,949 INFO L225 Difference]: With dead ends: 6810 [2022-01-28 12:58:45,949 INFO L226 Difference]: Without dead ends: 6364 [2022-01-28 12:58:45,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1940 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=2134, Invalid=6608, Unknown=0, NotChecked=0, Total=8742 [2022-01-28 12:58:45,951 INFO L933 BasicCegarLoop]: 557 mSDtfsCounter, 1408 mSDsluCounter, 8990 mSDsCounter, 0 mSdLazyCounter, 1889 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1408 SdHoareTripleChecker+Valid, 9332 SdHoareTripleChecker+Invalid, 1892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 12:58:45,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1408 Valid, 9332 Invalid, 1892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1889 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 12:58:45,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6364 states. [2022-01-28 12:58:46,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6364 to 5416. [2022-01-28 12:58:46,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5416 states, 5415 states have (on average 2.6284395198522623) internal successors, (14233), 5415 states have internal predecessors, (14233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:58:46,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5416 states to 5416 states and 14233 transitions. [2022-01-28 12:58:46,026 INFO L78 Accepts]: Start accepts. Automaton has 5416 states and 14233 transitions. Word has length 137 [2022-01-28 12:58:46,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:58:46,026 INFO L470 AbstractCegarLoop]: Abstraction has 5416 states and 14233 transitions. [2022-01-28 12:58:46,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:58:46,026 INFO L276 IsEmpty]: Start isEmpty. Operand 5416 states and 14233 transitions. [2022-01-28 12:58:46,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:58:46,032 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:58:46,032 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:58:46,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-01-28 12:58:46,032 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:58:46,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:58:46,032 INFO L85 PathProgramCache]: Analyzing trace with hash -722516667, now seen corresponding path program 43 times [2022-01-28 12:58:46,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:58:46,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641992430] [2022-01-28 12:58:46,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:58:46,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:58:46,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:58:46,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:58:46,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:58:46,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641992430] [2022-01-28 12:58:46,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641992430] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:58:46,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:58:46,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:58:46,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498531897] [2022-01-28 12:58:46,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:58:46,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:58:46,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:58:46,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:58:46,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:58:46,550 INFO L87 Difference]: Start difference. First operand 5416 states and 14233 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:58:52,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:58:52,028 INFO L93 Difference]: Finished difference Result 6584 states and 17244 transitions. [2022-01-28 12:58:52,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-28 12:58:52,028 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:58:52,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:58:52,038 INFO L225 Difference]: With dead ends: 6584 [2022-01-28 12:58:52,038 INFO L226 Difference]: Without dead ends: 6169 [2022-01-28 12:58:52,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1659 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=1875, Invalid=6135, Unknown=0, NotChecked=0, Total=8010 [2022-01-28 12:58:52,039 INFO L933 BasicCegarLoop]: 551 mSDtfsCounter, 1184 mSDsluCounter, 9361 mSDsCounter, 0 mSdLazyCounter, 1979 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1184 SdHoareTripleChecker+Valid, 9695 SdHoareTripleChecker+Invalid, 1982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 12:58:52,039 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1184 Valid, 9695 Invalid, 1982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1979 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 12:58:52,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6169 states. [2022-01-28 12:58:52,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6169 to 5428. [2022-01-28 12:58:52,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5428 states, 5427 states have (on average 2.626497143910079) internal successors, (14254), 5427 states have internal predecessors, (14254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:58:52,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5428 states to 5428 states and 14254 transitions. [2022-01-28 12:58:52,115 INFO L78 Accepts]: Start accepts. Automaton has 5428 states and 14254 transitions. Word has length 137 [2022-01-28 12:58:52,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:58:52,115 INFO L470 AbstractCegarLoop]: Abstraction has 5428 states and 14254 transitions. [2022-01-28 12:58:52,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:58:52,115 INFO L276 IsEmpty]: Start isEmpty. Operand 5428 states and 14254 transitions. [2022-01-28 12:58:52,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:58:52,121 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:58:52,121 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:58:52,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-01-28 12:58:52,121 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:58:52,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:58:52,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1108809227, now seen corresponding path program 44 times [2022-01-28 12:58:52,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:58:52,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322482669] [2022-01-28 12:58:52,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:58:52,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:58:52,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:58:52,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:58:52,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:58:52,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322482669] [2022-01-28 12:58:52,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322482669] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:58:52,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:58:52,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:58:52,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61437730] [2022-01-28 12:58:52,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:58:52,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:58:52,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:58:52,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:58:52,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:58:52,641 INFO L87 Difference]: Start difference. First operand 5428 states and 14254 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:58:57,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:58:57,419 INFO L93 Difference]: Finished difference Result 6433 states and 16848 transitions. [2022-01-28 12:58:57,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-28 12:58:57,423 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:58:57,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:58:57,433 INFO L225 Difference]: With dead ends: 6433 [2022-01-28 12:58:57,433 INFO L226 Difference]: Without dead ends: 6111 [2022-01-28 12:58:57,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1262 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1531, Invalid=5111, Unknown=0, NotChecked=0, Total=6642 [2022-01-28 12:58:57,435 INFO L933 BasicCegarLoop]: 541 mSDtfsCounter, 1115 mSDsluCounter, 9459 mSDsCounter, 0 mSdLazyCounter, 1985 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 9789 SdHoareTripleChecker+Invalid, 1988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 12:58:57,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1115 Valid, 9789 Invalid, 1988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1985 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 12:58:57,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6111 states. [2022-01-28 12:58:57,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6111 to 5432. [2022-01-28 12:58:57,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5432 states, 5431 states have (on average 2.6258515927085253) internal successors, (14261), 5431 states have internal predecessors, (14261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:58:57,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5432 states to 5432 states and 14261 transitions. [2022-01-28 12:58:57,499 INFO L78 Accepts]: Start accepts. Automaton has 5432 states and 14261 transitions. Word has length 137 [2022-01-28 12:58:57,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:58:57,499 INFO L470 AbstractCegarLoop]: Abstraction has 5432 states and 14261 transitions. [2022-01-28 12:58:57,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:58:57,499 INFO L276 IsEmpty]: Start isEmpty. Operand 5432 states and 14261 transitions. [2022-01-28 12:58:57,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:58:57,504 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:58:57,504 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:58:57,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-01-28 12:58:57,505 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:58:57,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:58:57,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1404412063, now seen corresponding path program 45 times [2022-01-28 12:58:57,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:58:57,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017763032] [2022-01-28 12:58:57,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:58:57,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:58:57,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:58:57,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:58:57,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:58:57,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017763032] [2022-01-28 12:58:57,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017763032] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:58:57,962 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:58:57,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:58:57,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499969645] [2022-01-28 12:58:57,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:58:57,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:58:57,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:58:57,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:58:57,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:58:57,963 INFO L87 Difference]: Start difference. First operand 5432 states and 14261 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:59:02,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:59:02,171 INFO L93 Difference]: Finished difference Result 6344 states and 16618 transitions. [2022-01-28 12:59:02,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-28 12:59:02,171 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:59:02,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:59:02,178 INFO L225 Difference]: With dead ends: 6344 [2022-01-28 12:59:02,179 INFO L226 Difference]: Without dead ends: 6053 [2022-01-28 12:59:02,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 912 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1237, Invalid=4165, Unknown=0, NotChecked=0, Total=5402 [2022-01-28 12:59:02,179 INFO L933 BasicCegarLoop]: 532 mSDtfsCounter, 1066 mSDsluCounter, 9073 mSDsCounter, 0 mSdLazyCounter, 1899 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1066 SdHoareTripleChecker+Valid, 9417 SdHoareTripleChecker+Invalid, 1902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 12:59:02,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1066 Valid, 9417 Invalid, 1902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1899 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 12:59:02,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6053 states. [2022-01-28 12:59:02,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6053 to 5436. [2022-01-28 12:59:02,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5435 states have (on average 2.625206991720331) internal successors, (14268), 5435 states have internal predecessors, (14268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:59:02,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 14268 transitions. [2022-01-28 12:59:02,245 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 14268 transitions. Word has length 137 [2022-01-28 12:59:02,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:59:02,245 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 14268 transitions. [2022-01-28 12:59:02,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:59:02,245 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 14268 transitions. [2022-01-28 12:59:02,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:59:02,251 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:59:02,251 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:59:02,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-01-28 12:59:02,251 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:59:02,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:59:02,251 INFO L85 PathProgramCache]: Analyzing trace with hash 986230409, now seen corresponding path program 46 times [2022-01-28 12:59:02,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:59:02,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144894548] [2022-01-28 12:59:02,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:59:02,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:59:02,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:59:02,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:59:02,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:59:02,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144894548] [2022-01-28 12:59:02,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144894548] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:59:02,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:59:02,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:59:02,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139022055] [2022-01-28 12:59:02,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:59:02,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:59:02,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:59:02,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:59:02,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:59:02,734 INFO L87 Difference]: Start difference. First operand 5436 states and 14268 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:59:06,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:59:06,724 INFO L93 Difference]: Finished difference Result 6201 states and 16252 transitions. [2022-01-28 12:59:06,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-28 12:59:06,724 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:59:06,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:59:06,732 INFO L225 Difference]: With dead ends: 6201 [2022-01-28 12:59:06,732 INFO L226 Difference]: Without dead ends: 5944 [2022-01-28 12:59:06,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=957, Invalid=2825, Unknown=0, NotChecked=0, Total=3782 [2022-01-28 12:59:06,733 INFO L933 BasicCegarLoop]: 516 mSDtfsCounter, 982 mSDsluCounter, 9190 mSDsCounter, 0 mSdLazyCounter, 1894 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 982 SdHoareTripleChecker+Valid, 9530 SdHoareTripleChecker+Invalid, 1897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 12:59:06,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [982 Valid, 9530 Invalid, 1897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1894 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 12:59:06,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5944 states. [2022-01-28 12:59:06,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5944 to 5440. [2022-01-28 12:59:06,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5439 states have (on average 2.624563338849053) internal successors, (14275), 5439 states have internal predecessors, (14275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:59:06,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14275 transitions. [2022-01-28 12:59:06,806 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14275 transitions. Word has length 137 [2022-01-28 12:59:06,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:59:06,807 INFO L470 AbstractCegarLoop]: Abstraction has 5440 states and 14275 transitions. [2022-01-28 12:59:06,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:59:06,807 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14275 transitions. [2022-01-28 12:59:06,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:59:06,813 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:59:06,813 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:59:06,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-01-28 12:59:06,813 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:59:06,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:59:06,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1815915453, now seen corresponding path program 47 times [2022-01-28 12:59:06,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:59:06,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556121128] [2022-01-28 12:59:06,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:59:06,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:59:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:59:07,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:59:07,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:59:07,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556121128] [2022-01-28 12:59:07,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556121128] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:59:07,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:59:07,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:59:07,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329694147] [2022-01-28 12:59:07,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:59:07,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:59:07,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:59:07,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:59:07,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:59:07,312 INFO L87 Difference]: Start difference. First operand 5440 states and 14275 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:59:10,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:59:10,498 INFO L93 Difference]: Finished difference Result 6172 states and 16170 transitions. [2022-01-28 12:59:10,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-28 12:59:10,498 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:59:10,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:59:10,506 INFO L225 Difference]: With dead ends: 6172 [2022-01-28 12:59:10,507 INFO L226 Difference]: Without dead ends: 5828 [2022-01-28 12:59:10,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=996, Invalid=3294, Unknown=0, NotChecked=0, Total=4290 [2022-01-28 12:59:10,507 INFO L933 BasicCegarLoop]: 524 mSDtfsCounter, 950 mSDsluCounter, 8565 mSDsCounter, 0 mSdLazyCounter, 1798 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 950 SdHoareTripleChecker+Valid, 8926 SdHoareTripleChecker+Invalid, 1801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-28 12:59:10,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [950 Valid, 8926 Invalid, 1801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1798 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-28 12:59:10,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5828 states. [2022-01-28 12:59:10,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5828 to 5356. [2022-01-28 12:59:10,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5356 states, 5355 states have (on average 2.637535014005602) internal successors, (14124), 5355 states have internal predecessors, (14124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:59:10,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5356 states to 5356 states and 14124 transitions. [2022-01-28 12:59:10,582 INFO L78 Accepts]: Start accepts. Automaton has 5356 states and 14124 transitions. Word has length 137 [2022-01-28 12:59:10,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:59:10,582 INFO L470 AbstractCegarLoop]: Abstraction has 5356 states and 14124 transitions. [2022-01-28 12:59:10,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:59:10,582 INFO L276 IsEmpty]: Start isEmpty. Operand 5356 states and 14124 transitions. [2022-01-28 12:59:10,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:59:10,588 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:59:10,588 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] [2022-01-28 12:59:10,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-01-28 12:59:10,588 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:59:10,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:59:10,589 INFO L85 PathProgramCache]: Analyzing trace with hash -332532207, now seen corresponding path program 48 times [2022-01-28 12:59:10,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:59:10,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330480901] [2022-01-28 12:59:10,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:59:10,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:59:10,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:59:11,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:59:11,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:59:11,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330480901] [2022-01-28 12:59:11,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330480901] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:59:11,071 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:59:11,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:59:11,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934843344] [2022-01-28 12:59:11,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:59:11,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:59:11,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:59:11,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:59:11,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:59:11,072 INFO L87 Difference]: Start difference. First operand 5356 states and 14124 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:59:16,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:59:16,854 INFO L93 Difference]: Finished difference Result 7132 states and 18616 transitions. [2022-01-28 12:59:16,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-01-28 12:59:16,854 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:59:16,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:59:16,863 INFO L225 Difference]: With dead ends: 7132 [2022-01-28 12:59:16,863 INFO L226 Difference]: Without dead ends: 6283 [2022-01-28 12:59:16,864 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2154 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=2362, Invalid=7144, Unknown=0, NotChecked=0, Total=9506 [2022-01-28 12:59:16,865 INFO L933 BasicCegarLoop]: 586 mSDtfsCounter, 1615 mSDsluCounter, 9321 mSDsCounter, 0 mSdLazyCounter, 1958 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1615 SdHoareTripleChecker+Valid, 9682 SdHoareTripleChecker+Invalid, 1961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 12:59:16,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1615 Valid, 9682 Invalid, 1961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1958 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 12:59:16,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6283 states. [2022-01-28 12:59:16,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6283 to 5412. [2022-01-28 12:59:16,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5412 states, 5411 states have (on average 2.629088892995749) internal successors, (14226), 5411 states have internal predecessors, (14226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:59:16,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5412 states to 5412 states and 14226 transitions. [2022-01-28 12:59:16,937 INFO L78 Accepts]: Start accepts. Automaton has 5412 states and 14226 transitions. Word has length 137 [2022-01-28 12:59:16,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:59:16,938 INFO L470 AbstractCegarLoop]: Abstraction has 5412 states and 14226 transitions. [2022-01-28 12:59:16,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:59:16,938 INFO L276 IsEmpty]: Start isEmpty. Operand 5412 states and 14226 transitions. [2022-01-28 12:59:16,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:59:16,944 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:59:16,944 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:59:16,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-01-28 12:59:16,944 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:59:16,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:59:16,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1888595271, now seen corresponding path program 49 times [2022-01-28 12:59:16,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:59:16,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68182279] [2022-01-28 12:59:16,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:59:16,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:59:16,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:59:17,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:59:17,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:59:17,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68182279] [2022-01-28 12:59:17,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68182279] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:59:17,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:59:17,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:59:17,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639545803] [2022-01-28 12:59:17,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:59:17,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:59:17,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:59:17,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:59:17,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:59:17,461 INFO L87 Difference]: Start difference. First operand 5412 states and 14226 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:59:37,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:59:37,038 INFO L93 Difference]: Finished difference Result 6698 states and 17458 transitions. [2022-01-28 12:59:37,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-01-28 12:59:37,038 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:59:37,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:59:37,045 INFO L225 Difference]: With dead ends: 6698 [2022-01-28 12:59:37,045 INFO L226 Difference]: Without dead ends: 6252 [2022-01-28 12:59:37,046 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1960 ImplicationChecksByTransitivity, 19.0s TimeCoverageRelationStatistics Valid=2094, Invalid=6648, Unknown=0, NotChecked=0, Total=8742 [2022-01-28 12:59:37,046 INFO L933 BasicCegarLoop]: 568 mSDtfsCounter, 1536 mSDsluCounter, 8963 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1536 SdHoareTripleChecker+Valid, 9320 SdHoareTripleChecker+Invalid, 1860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 12:59:37,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1536 Valid, 9320 Invalid, 1860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1857 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 12:59:37,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6252 states. [2022-01-28 12:59:37,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6252 to 5416. [2022-01-28 12:59:37,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5416 states, 5415 states have (on average 2.6284395198522623) internal successors, (14233), 5415 states have internal predecessors, (14233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:59:37,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5416 states to 5416 states and 14233 transitions. [2022-01-28 12:59:37,115 INFO L78 Accepts]: Start accepts. Automaton has 5416 states and 14233 transitions. Word has length 137 [2022-01-28 12:59:37,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:59:37,115 INFO L470 AbstractCegarLoop]: Abstraction has 5416 states and 14233 transitions. [2022-01-28 12:59:37,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:59:37,115 INFO L276 IsEmpty]: Start isEmpty. Operand 5416 states and 14233 transitions. [2022-01-28 12:59:37,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:59:37,121 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:59:37,121 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:59:37,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-01-28 12:59:37,121 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:59:37,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:59:37,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1299734857, now seen corresponding path program 50 times [2022-01-28 12:59:37,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:59:37,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429873018] [2022-01-28 12:59:37,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:59:37,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:59:37,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:59:37,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:59:37,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:59:37,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429873018] [2022-01-28 12:59:37,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429873018] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:59:37,622 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:59:37,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:59:37,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156639635] [2022-01-28 12:59:37,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:59:37,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:59:37,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:59:37,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:59:37,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:59:37,623 INFO L87 Difference]: Start difference. First operand 5416 states and 14233 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:59:55,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:59:55,292 INFO L93 Difference]: Finished difference Result 6460 states and 16911 transitions. [2022-01-28 12:59:55,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-28 12:59:55,292 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 12:59:55,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:59:55,299 INFO L225 Difference]: With dead ends: 6460 [2022-01-28 12:59:55,299 INFO L226 Difference]: Without dead ends: 6045 [2022-01-28 12:59:55,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1745 ImplicationChecksByTransitivity, 17.0s TimeCoverageRelationStatistics Valid=1842, Invalid=6168, Unknown=0, NotChecked=0, Total=8010 [2022-01-28 12:59:55,302 INFO L933 BasicCegarLoop]: 560 mSDtfsCounter, 1220 mSDsluCounter, 9797 mSDsCounter, 0 mSdLazyCounter, 2043 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1220 SdHoareTripleChecker+Valid, 10128 SdHoareTripleChecker+Invalid, 2046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-28 12:59:55,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1220 Valid, 10128 Invalid, 2046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2043 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-28 12:59:55,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6045 states. [2022-01-28 12:59:55,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6045 to 5428. [2022-01-28 12:59:55,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5428 states, 5427 states have (on average 2.626497143910079) internal successors, (14254), 5427 states have internal predecessors, (14254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:59:55,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5428 states to 5428 states and 14254 transitions. [2022-01-28 12:59:55,369 INFO L78 Accepts]: Start accepts. Automaton has 5428 states and 14254 transitions. Word has length 137 [2022-01-28 12:59:55,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:59:55,369 INFO L470 AbstractCegarLoop]: Abstraction has 5428 states and 14254 transitions. [2022-01-28 12:59:55,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:59:55,369 INFO L276 IsEmpty]: Start isEmpty. Operand 5428 states and 14254 transitions. [2022-01-28 12:59:55,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 12:59:55,375 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:59:55,375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:59:55,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-01-28 12:59:55,375 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 12:59:55,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:59:55,375 INFO L85 PathProgramCache]: Analyzing trace with hash 531591037, now seen corresponding path program 51 times [2022-01-28 12:59:55,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:59:55,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305402625] [2022-01-28 12:59:55,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:59:55,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:59:55,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:59:55,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:59:55,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:59:55,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305402625] [2022-01-28 12:59:55,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305402625] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:59:55,831 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:59:55,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 12:59:55,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151934308] [2022-01-28 12:59:55,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:59:55,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 12:59:55,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:59:55,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 12:59:55,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 12:59:55,832 INFO L87 Difference]: Start difference. First operand 5428 states and 14254 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:00:00,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:00:00,516 INFO L93 Difference]: Finished difference Result 6305 states and 16504 transitions. [2022-01-28 13:00:00,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-28 13:00:00,516 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:00:00,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:00:00,523 INFO L225 Difference]: With dead ends: 6305 [2022-01-28 13:00:00,523 INFO L226 Difference]: Without dead ends: 5983 [2022-01-28 13:00:00,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1276 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1503, Invalid=5139, Unknown=0, NotChecked=0, Total=6642 [2022-01-28 13:00:00,523 INFO L933 BasicCegarLoop]: 551 mSDtfsCounter, 1154 mSDsluCounter, 9403 mSDsCounter, 0 mSdLazyCounter, 1940 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1154 SdHoareTripleChecker+Valid, 9749 SdHoareTripleChecker+Invalid, 1943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:00:00,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1154 Valid, 9749 Invalid, 1943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1940 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 13:00:00,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5983 states. [2022-01-28 13:00:00,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5983 to 5432. [2022-01-28 13:00:00,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5432 states, 5431 states have (on average 2.6258515927085253) internal successors, (14261), 5431 states have internal predecessors, (14261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:00:00,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5432 states to 5432 states and 14261 transitions. [2022-01-28 13:00:00,584 INFO L78 Accepts]: Start accepts. Automaton has 5432 states and 14261 transitions. Word has length 137 [2022-01-28 13:00:00,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:00:00,585 INFO L470 AbstractCegarLoop]: Abstraction has 5432 states and 14261 transitions. [2022-01-28 13:00:00,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:00:00,585 INFO L276 IsEmpty]: Start isEmpty. Operand 5432 states and 14261 transitions. [2022-01-28 13:00:00,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:00:00,591 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:00:00,591 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:00:00,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-01-28 13:00:00,591 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:00:00,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:00:00,591 INFO L85 PathProgramCache]: Analyzing trace with hash 827193873, now seen corresponding path program 52 times [2022-01-28 13:00:00,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:00:00,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584696457] [2022-01-28 13:00:00,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:00:00,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:00:00,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:00:01,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:00:01,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:00:01,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584696457] [2022-01-28 13:00:01,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584696457] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:00:01,046 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:00:01,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:00:01,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688236145] [2022-01-28 13:00:01,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:00:01,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:00:01,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:00:01,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:00:01,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:00:01,047 INFO L87 Difference]: Start difference. First operand 5432 states and 14261 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:00:05,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:00:05,277 INFO L93 Difference]: Finished difference Result 6212 states and 16263 transitions. [2022-01-28 13:00:05,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-28 13:00:05,278 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:00:05,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:00:05,286 INFO L225 Difference]: With dead ends: 6212 [2022-01-28 13:00:05,286 INFO L226 Difference]: Without dead ends: 5921 [2022-01-28 13:00:05,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 922 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1217, Invalid=4185, Unknown=0, NotChecked=0, Total=5402 [2022-01-28 13:00:05,287 INFO L933 BasicCegarLoop]: 543 mSDtfsCounter, 1050 mSDsluCounter, 9326 mSDsCounter, 0 mSdLazyCounter, 1927 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1050 SdHoareTripleChecker+Valid, 9679 SdHoareTripleChecker+Invalid, 1930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:00:05,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1050 Valid, 9679 Invalid, 1930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1927 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 13:00:05,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5921 states. [2022-01-28 13:00:05,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5921 to 5436. [2022-01-28 13:00:05,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5435 states have (on average 2.625206991720331) internal successors, (14268), 5435 states have internal predecessors, (14268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:00:05,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 14268 transitions. [2022-01-28 13:00:05,356 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 14268 transitions. Word has length 137 [2022-01-28 13:00:05,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:00:05,356 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 14268 transitions. [2022-01-28 13:00:05,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:00:05,356 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 14268 transitions. [2022-01-28 13:00:05,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:00:05,362 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:00:05,362 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:00:05,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-01-28 13:00:05,362 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:00:05,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:00:05,362 INFO L85 PathProgramCache]: Analyzing trace with hash 409012219, now seen corresponding path program 53 times [2022-01-28 13:00:05,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:00:05,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924672182] [2022-01-28 13:00:05,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:00:05,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:00:05,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:00:05,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:00:05,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:00:05,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924672182] [2022-01-28 13:00:05,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924672182] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:00:05,914 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:00:05,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:00:05,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605444792] [2022-01-28 13:00:05,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:00:05,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:00:05,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:00:05,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:00:05,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:00:05,915 INFO L87 Difference]: Start difference. First operand 5436 states and 14268 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:00:11,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:00:11,166 INFO L93 Difference]: Finished difference Result 6057 states and 15864 transitions. [2022-01-28 13:00:11,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-28 13:00:11,166 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:00:11,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:00:11,173 INFO L225 Difference]: With dead ends: 6057 [2022-01-28 13:00:11,174 INFO L226 Difference]: Without dead ends: 5800 [2022-01-28 13:00:11,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=956, Invalid=2826, Unknown=0, NotChecked=0, Total=3782 [2022-01-28 13:00:11,174 INFO L933 BasicCegarLoop]: 528 mSDtfsCounter, 953 mSDsluCounter, 9224 mSDsCounter, 0 mSdLazyCounter, 1894 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 9579 SdHoareTripleChecker+Invalid, 1897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-28 13:00:11,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [953 Valid, 9579 Invalid, 1897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1894 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-28 13:00:11,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5800 states. [2022-01-28 13:00:11,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5800 to 5440. [2022-01-28 13:00:11,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5439 states have (on average 2.624563338849053) internal successors, (14275), 5439 states have internal predecessors, (14275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:00:11,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14275 transitions. [2022-01-28 13:00:11,244 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14275 transitions. Word has length 137 [2022-01-28 13:00:11,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:00:11,244 INFO L470 AbstractCegarLoop]: Abstraction has 5440 states and 14275 transitions. [2022-01-28 13:00:11,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:00:11,244 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14275 transitions. [2022-01-28 13:00:11,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:00:11,250 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:00:11,250 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:00:11,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-01-28 13:00:11,250 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:00:11,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:00:11,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1901833653, now seen corresponding path program 54 times [2022-01-28 13:00:11,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:00:11,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150013075] [2022-01-28 13:00:11,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:00:11,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:00:11,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:00:11,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:00:11,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:00:11,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150013075] [2022-01-28 13:00:11,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150013075] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:00:11,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:00:11,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:00:11,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487542825] [2022-01-28 13:00:11,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:00:11,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:00:11,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:00:11,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:00:11,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:00:11,723 INFO L87 Difference]: Start difference. First operand 5440 states and 14275 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:00:15,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:00:15,544 INFO L93 Difference]: Finished difference Result 6060 states and 15866 transitions. [2022-01-28 13:00:15,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-28 13:00:15,544 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:00:15,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:00:15,551 INFO L225 Difference]: With dead ends: 6060 [2022-01-28 13:00:15,552 INFO L226 Difference]: Without dead ends: 5720 [2022-01-28 13:00:15,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 616 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=981, Invalid=3309, Unknown=0, NotChecked=0, Total=4290 [2022-01-28 13:00:15,552 INFO L933 BasicCegarLoop]: 529 mSDtfsCounter, 1065 mSDsluCounter, 9014 mSDsCounter, 0 mSdLazyCounter, 1860 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1065 SdHoareTripleChecker+Valid, 9372 SdHoareTripleChecker+Invalid, 1863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:00:15,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1065 Valid, 9372 Invalid, 1863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1860 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 13:00:15,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5720 states. [2022-01-28 13:00:15,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5720 to 5360. [2022-01-28 13:00:15,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5360 states, 5359 states have (on average 2.636872550849039) internal successors, (14131), 5359 states have internal predecessors, (14131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:00:15,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5360 states to 5360 states and 14131 transitions. [2022-01-28 13:00:15,612 INFO L78 Accepts]: Start accepts. Automaton has 5360 states and 14131 transitions. Word has length 137 [2022-01-28 13:00:15,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:00:15,612 INFO L470 AbstractCegarLoop]: Abstraction has 5360 states and 14131 transitions. [2022-01-28 13:00:15,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:00:15,612 INFO L276 IsEmpty]: Start isEmpty. Operand 5360 states and 14131 transitions. [2022-01-28 13:00:15,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:00:15,618 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:00:15,618 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:00:15,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-01-28 13:00:15,618 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:00:15,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:00:15,618 INFO L85 PathProgramCache]: Analyzing trace with hash 2101574831, now seen corresponding path program 55 times [2022-01-28 13:00:15,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:00:15,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762313187] [2022-01-28 13:00:15,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:00:15,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:00:15,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:00:16,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:00:16,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:00:16,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762313187] [2022-01-28 13:00:16,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762313187] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:00:16,098 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:00:16,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:00:16,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467110059] [2022-01-28 13:00:16,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:00:16,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:00:16,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:00:16,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:00:16,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:00:16,099 INFO L87 Difference]: Start difference. First operand 5360 states and 14131 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:00:24,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:00:24,769 INFO L93 Difference]: Finished difference Result 6376 states and 16694 transitions. [2022-01-28 13:00:24,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-01-28 13:00:24,769 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:00:24,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:00:24,775 INFO L225 Difference]: With dead ends: 6376 [2022-01-28 13:00:24,775 INFO L226 Difference]: Without dead ends: 5450 [2022-01-28 13:00:24,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2301 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=2645, Invalid=7657, Unknown=0, NotChecked=0, Total=10302 [2022-01-28 13:00:24,776 INFO L933 BasicCegarLoop]: 570 mSDtfsCounter, 1514 mSDsluCounter, 9798 mSDsCounter, 0 mSdLazyCounter, 1991 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 10109 SdHoareTripleChecker+Invalid, 1994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-28 13:00:24,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1514 Valid, 10109 Invalid, 1994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1991 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-28 13:00:24,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5450 states. [2022-01-28 13:00:24,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5450 to 5314. [2022-01-28 13:00:24,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5314 states, 5313 states have (on average 2.6405044231131187) internal successors, (14029), 5313 states have internal predecessors, (14029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:00:24,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5314 states to 5314 states and 14029 transitions. [2022-01-28 13:00:24,838 INFO L78 Accepts]: Start accepts. Automaton has 5314 states and 14029 transitions. Word has length 137 [2022-01-28 13:00:24,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:00:24,838 INFO L470 AbstractCegarLoop]: Abstraction has 5314 states and 14029 transitions. [2022-01-28 13:00:24,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:00:24,838 INFO L276 IsEmpty]: Start isEmpty. Operand 5314 states and 14029 transitions. [2022-01-28 13:00:24,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:00:24,844 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:00:24,844 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:00:24,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-01-28 13:00:24,844 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:00:24,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:00:24,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1776317311, now seen corresponding path program 56 times [2022-01-28 13:00:24,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:00:24,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598032493] [2022-01-28 13:00:24,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:00:24,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:00:24,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:00:25,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:00:25,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:00:25,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598032493] [2022-01-28 13:00:25,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598032493] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:00:25,336 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:00:25,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:00:25,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308985112] [2022-01-28 13:00:25,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:00:25,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:00:25,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:00:25,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:00:25,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:00:25,337 INFO L87 Difference]: Start difference. First operand 5314 states and 14029 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:00:38,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:00:38,416 INFO L93 Difference]: Finished difference Result 7714 states and 20217 transitions. [2022-01-28 13:00:38,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-01-28 13:00:38,416 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:00:38,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:00:38,424 INFO L225 Difference]: With dead ends: 7714 [2022-01-28 13:00:38,424 INFO L226 Difference]: Without dead ends: 6865 [2022-01-28 13:00:38,424 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2102 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=2447, Invalid=7059, Unknown=0, NotChecked=0, Total=9506 [2022-01-28 13:00:38,424 INFO L933 BasicCegarLoop]: 571 mSDtfsCounter, 1572 mSDsluCounter, 9589 mSDsCounter, 0 mSdLazyCounter, 2104 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1572 SdHoareTripleChecker+Valid, 9928 SdHoareTripleChecker+Invalid, 2107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-28 13:00:38,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1572 Valid, 9928 Invalid, 2107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2104 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-28 13:00:38,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6865 states. [2022-01-28 13:00:38,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6865 to 5486. [2022-01-28 13:00:38,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5486 states, 5485 states have (on average 2.634457611668186) internal successors, (14450), 5485 states have internal predecessors, (14450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:00:38,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5486 states to 5486 states and 14450 transitions. [2022-01-28 13:00:38,484 INFO L78 Accepts]: Start accepts. Automaton has 5486 states and 14450 transitions. Word has length 137 [2022-01-28 13:00:38,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:00:38,484 INFO L470 AbstractCegarLoop]: Abstraction has 5486 states and 14450 transitions. [2022-01-28 13:00:38,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:00:38,484 INFO L276 IsEmpty]: Start isEmpty. Operand 5486 states and 14450 transitions. [2022-01-28 13:00:38,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:00:38,489 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:00:38,489 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:00:38,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-01-28 13:00:38,490 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:00:38,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:00:38,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1890609603, now seen corresponding path program 57 times [2022-01-28 13:00:38,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:00:38,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423072983] [2022-01-28 13:00:38,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:00:38,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:00:38,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:00:39,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:00:39,013 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:00:39,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423072983] [2022-01-28 13:00:39,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423072983] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:00:39,013 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:00:39,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:00:39,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492185235] [2022-01-28 13:00:39,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:00:39,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:00:39,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:00:39,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:00:39,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:00:39,014 INFO L87 Difference]: Start difference. First operand 5486 states and 14450 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:00:50,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:00:50,869 INFO L93 Difference]: Finished difference Result 7448 states and 19509 transitions. [2022-01-28 13:00:50,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-01-28 13:00:50,869 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:00:50,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:00:50,877 INFO L225 Difference]: With dead ends: 7448 [2022-01-28 13:00:50,878 INFO L226 Difference]: Without dead ends: 7002 [2022-01-28 13:00:50,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1912 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=2171, Invalid=6571, Unknown=0, NotChecked=0, Total=8742 [2022-01-28 13:00:50,879 INFO L933 BasicCegarLoop]: 556 mSDtfsCounter, 1493 mSDsluCounter, 8774 mSDsCounter, 0 mSdLazyCounter, 1959 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 9131 SdHoareTripleChecker+Invalid, 1962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-28 13:00:50,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1493 Valid, 9131 Invalid, 1962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1959 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-28 13:00:50,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7002 states. [2022-01-28 13:00:50,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7002 to 5490. [2022-01-28 13:00:50,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5490 states, 5489 states have (on average 2.6338130807068683) internal successors, (14457), 5489 states have internal predecessors, (14457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:00:50,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5490 states to 5490 states and 14457 transitions. [2022-01-28 13:00:50,952 INFO L78 Accepts]: Start accepts. Automaton has 5490 states and 14457 transitions. Word has length 137 [2022-01-28 13:00:50,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:00:50,952 INFO L470 AbstractCegarLoop]: Abstraction has 5490 states and 14457 transitions. [2022-01-28 13:00:50,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:00:50,952 INFO L276 IsEmpty]: Start isEmpty. Operand 5490 states and 14457 transitions. [2022-01-28 13:00:50,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:00:50,958 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:00:50,958 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:00:50,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-01-28 13:00:50,958 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:00:50,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:00:50,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1301749189, now seen corresponding path program 58 times [2022-01-28 13:00:50,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:00:50,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012514759] [2022-01-28 13:00:50,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:00:50,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:00:50,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:00:51,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:00:51,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:00:51,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012514759] [2022-01-28 13:00:51,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012514759] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:00:51,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:00:51,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:00:51,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589283218] [2022-01-28 13:00:51,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:00:51,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:00:51,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:00:51,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:00:51,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:00:51,489 INFO L87 Difference]: Start difference. First operand 5490 states and 14457 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:02,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:02,197 INFO L93 Difference]: Finished difference Result 7222 states and 18991 transitions. [2022-01-28 13:01:02,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-28 13:01:02,198 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:01:02,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:02,206 INFO L225 Difference]: With dead ends: 7222 [2022-01-28 13:01:02,206 INFO L226 Difference]: Without dead ends: 6807 [2022-01-28 13:01:02,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1701 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=1911, Invalid=6099, Unknown=0, NotChecked=0, Total=8010 [2022-01-28 13:01:02,207 INFO L933 BasicCegarLoop]: 549 mSDtfsCounter, 1246 mSDsluCounter, 8678 mSDsCounter, 0 mSdLazyCounter, 1969 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 9040 SdHoareTripleChecker+Invalid, 1972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-28 13:01:02,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1246 Valid, 9040 Invalid, 1972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1969 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-28 13:01:02,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6807 states. [2022-01-28 13:01:02,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6807 to 5502. [2022-01-28 13:01:02,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5502 states, 5501 states have (on average 2.631885111797855) internal successors, (14478), 5501 states have internal predecessors, (14478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:02,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5502 states to 5502 states and 14478 transitions. [2022-01-28 13:01:02,279 INFO L78 Accepts]: Start accepts. Automaton has 5502 states and 14478 transitions. Word has length 137 [2022-01-28 13:01:02,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:02,279 INFO L470 AbstractCegarLoop]: Abstraction has 5502 states and 14478 transitions. [2022-01-28 13:01:02,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:02,279 INFO L276 IsEmpty]: Start isEmpty. Operand 5502 states and 14478 transitions. [2022-01-28 13:01:02,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:01:02,285 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:02,285 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:01:02,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-01-28 13:01:02,285 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:01:02,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:02,285 INFO L85 PathProgramCache]: Analyzing trace with hash 529576705, now seen corresponding path program 59 times [2022-01-28 13:01:02,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:02,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459468440] [2022-01-28 13:01:02,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:02,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:02,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:02,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:02,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:02,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459468440] [2022-01-28 13:01:02,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459468440] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:02,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:02,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:01:02,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802390976] [2022-01-28 13:01:02,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:02,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:01:02,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:02,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:01:02,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:01:02,866 INFO L87 Difference]: Start difference. First operand 5502 states and 14478 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:08,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:08,304 INFO L93 Difference]: Finished difference Result 7071 states and 18595 transitions. [2022-01-28 13:01:08,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-28 13:01:08,304 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:01:08,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:08,312 INFO L225 Difference]: With dead ends: 7071 [2022-01-28 13:01:08,312 INFO L226 Difference]: Without dead ends: 6749 [2022-01-28 13:01:08,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1300 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=1559, Invalid=5083, Unknown=0, NotChecked=0, Total=6642 [2022-01-28 13:01:08,313 INFO L933 BasicCegarLoop]: 539 mSDtfsCounter, 1103 mSDsluCounter, 8709 mSDsCounter, 0 mSdLazyCounter, 1952 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1103 SdHoareTripleChecker+Valid, 9070 SdHoareTripleChecker+Invalid, 1955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:01:08,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1103 Valid, 9070 Invalid, 1955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1952 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 13:01:08,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6749 states. [2022-01-28 13:01:08,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6749 to 5506. [2022-01-28 13:01:08,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5506 states, 5505 states have (on average 2.631244323342416) internal successors, (14485), 5505 states have internal predecessors, (14485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:08,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5506 states to 5506 states and 14485 transitions. [2022-01-28 13:01:08,381 INFO L78 Accepts]: Start accepts. Automaton has 5506 states and 14485 transitions. Word has length 137 [2022-01-28 13:01:08,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:08,381 INFO L470 AbstractCegarLoop]: Abstraction has 5506 states and 14485 transitions. [2022-01-28 13:01:08,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:08,381 INFO L276 IsEmpty]: Start isEmpty. Operand 5506 states and 14485 transitions. [2022-01-28 13:01:08,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:01:08,387 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:08,387 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:01:08,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-01-28 13:01:08,387 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:01:08,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:08,387 INFO L85 PathProgramCache]: Analyzing trace with hash 825179541, now seen corresponding path program 60 times [2022-01-28 13:01:08,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:08,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133363597] [2022-01-28 13:01:08,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:08,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:08,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:08,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:08,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:08,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133363597] [2022-01-28 13:01:08,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133363597] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:08,846 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:08,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:01:08,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772934582] [2022-01-28 13:01:08,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:08,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:01:08,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:08,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:01:08,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:01:08,847 INFO L87 Difference]: Start difference. First operand 5506 states and 14485 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:13,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:13,458 INFO L93 Difference]: Finished difference Result 6982 states and 18365 transitions. [2022-01-28 13:01:13,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-28 13:01:13,459 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:01:13,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:13,467 INFO L225 Difference]: With dead ends: 6982 [2022-01-28 13:01:13,467 INFO L226 Difference]: Without dead ends: 6691 [2022-01-28 13:01:13,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 894 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1254, Invalid=4148, Unknown=0, NotChecked=0, Total=5402 [2022-01-28 13:01:13,468 INFO L933 BasicCegarLoop]: 530 mSDtfsCounter, 1066 mSDsluCounter, 9092 mSDsCounter, 0 mSdLazyCounter, 2027 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1066 SdHoareTripleChecker+Valid, 9444 SdHoareTripleChecker+Invalid, 2030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:01:13,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1066 Valid, 9444 Invalid, 2030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2027 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 13:01:13,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6691 states. [2022-01-28 13:01:13,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6691 to 5510. [2022-01-28 13:01:13,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5510 states, 5509 states have (on average 2.6306044654202214) internal successors, (14492), 5509 states have internal predecessors, (14492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:13,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5510 states to 5510 states and 14492 transitions. [2022-01-28 13:01:13,539 INFO L78 Accepts]: Start accepts. Automaton has 5510 states and 14492 transitions. Word has length 137 [2022-01-28 13:01:13,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:13,539 INFO L470 AbstractCegarLoop]: Abstraction has 5510 states and 14492 transitions. [2022-01-28 13:01:13,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:13,539 INFO L276 IsEmpty]: Start isEmpty. Operand 5510 states and 14492 transitions. [2022-01-28 13:01:13,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:01:13,545 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:13,545 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:01:13,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-01-28 13:01:13,545 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:01:13,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:13,545 INFO L85 PathProgramCache]: Analyzing trace with hash 406997887, now seen corresponding path program 61 times [2022-01-28 13:01:13,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:13,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199007791] [2022-01-28 13:01:13,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:13,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:13,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:14,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:14,025 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:14,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199007791] [2022-01-28 13:01:14,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199007791] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:14,026 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:14,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:01:14,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898024566] [2022-01-28 13:01:14,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:14,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:01:14,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:14,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:01:14,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:01:14,026 INFO L87 Difference]: Start difference. First operand 5510 states and 14492 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:19,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:19,172 INFO L93 Difference]: Finished difference Result 6839 states and 17999 transitions. [2022-01-28 13:01:19,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-28 13:01:19,172 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:01:19,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:19,182 INFO L225 Difference]: With dead ends: 6839 [2022-01-28 13:01:19,182 INFO L226 Difference]: Without dead ends: 6582 [2022-01-28 13:01:19,183 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 492 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=961, Invalid=2821, Unknown=0, NotChecked=0, Total=3782 [2022-01-28 13:01:19,183 INFO L933 BasicCegarLoop]: 514 mSDtfsCounter, 1026 mSDsluCounter, 8216 mSDsCounter, 0 mSdLazyCounter, 1831 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1026 SdHoareTripleChecker+Valid, 8592 SdHoareTripleChecker+Invalid, 1834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:01:19,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1026 Valid, 8592 Invalid, 1834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1831 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 13:01:19,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6582 states. [2022-01-28 13:01:19,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6582 to 5514. [2022-01-28 13:01:19,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5514 states, 5513 states have (on average 2.6299655360058045) internal successors, (14499), 5513 states have internal predecessors, (14499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:19,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5514 states to 5514 states and 14499 transitions. [2022-01-28 13:01:19,264 INFO L78 Accepts]: Start accepts. Automaton has 5514 states and 14499 transitions. Word has length 137 [2022-01-28 13:01:19,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:19,264 INFO L470 AbstractCegarLoop]: Abstraction has 5514 states and 14499 transitions. [2022-01-28 13:01:19,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:19,265 INFO L276 IsEmpty]: Start isEmpty. Operand 5514 states and 14499 transitions. [2022-01-28 13:01:19,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:01:19,271 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:19,271 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:01:19,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-01-28 13:01:19,271 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:01:19,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:19,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1899819321, now seen corresponding path program 62 times [2022-01-28 13:01:19,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:19,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576715040] [2022-01-28 13:01:19,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:19,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:19,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:19,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:19,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:19,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576715040] [2022-01-28 13:01:19,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576715040] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:19,781 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:19,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:01:19,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650726700] [2022-01-28 13:01:19,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:19,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:01:19,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:19,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:01:19,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:01:19,782 INFO L87 Difference]: Start difference. First operand 5514 states and 14499 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:26,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:26,248 INFO L93 Difference]: Finished difference Result 6810 states and 17917 transitions. [2022-01-28 13:01:26,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-28 13:01:26,248 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:01:26,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:26,259 INFO L225 Difference]: With dead ends: 6810 [2022-01-28 13:01:26,259 INFO L226 Difference]: Without dead ends: 6470 [2022-01-28 13:01:26,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=1005, Invalid=3285, Unknown=0, NotChecked=0, Total=4290 [2022-01-28 13:01:26,260 INFO L933 BasicCegarLoop]: 522 mSDtfsCounter, 999 mSDsluCounter, 8833 mSDsCounter, 0 mSdLazyCounter, 1956 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 9194 SdHoareTripleChecker+Invalid, 1959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:01:26,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [999 Valid, 9194 Invalid, 1959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1956 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 13:01:26,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6470 states. [2022-01-28 13:01:26,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6470 to 5434. [2022-01-28 13:01:26,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5434 states, 5433 states have (on average 2.6333517393705135) internal successors, (14307), 5433 states have internal predecessors, (14307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:26,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5434 states to 5434 states and 14307 transitions. [2022-01-28 13:01:26,350 INFO L78 Accepts]: Start accepts. Automaton has 5434 states and 14307 transitions. Word has length 137 [2022-01-28 13:01:26,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:26,350 INFO L470 AbstractCegarLoop]: Abstraction has 5434 states and 14307 transitions. [2022-01-28 13:01:26,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:26,350 INFO L276 IsEmpty]: Start isEmpty. Operand 5434 states and 14307 transitions. [2022-01-28 13:01:26,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:01:26,356 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:26,356 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:01:26,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-01-28 13:01:26,356 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:01:26,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:26,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1050393517, now seen corresponding path program 63 times [2022-01-28 13:01:26,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:26,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581211484] [2022-01-28 13:01:26,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:26,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:26,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:26,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:26,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:26,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581211484] [2022-01-28 13:01:26,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581211484] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:26,866 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:26,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:01:26,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537220262] [2022-01-28 13:01:26,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:26,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:01:26,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:26,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:01:26,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:01:26,867 INFO L87 Difference]: Start difference. First operand 5434 states and 14307 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:32,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:32,482 INFO L93 Difference]: Finished difference Result 7195 states and 18944 transitions. [2022-01-28 13:01:32,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-01-28 13:01:32,483 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:01:32,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:32,493 INFO L225 Difference]: With dead ends: 7195 [2022-01-28 13:01:32,493 INFO L226 Difference]: Without dead ends: 6873 [2022-01-28 13:01:32,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1177 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=1559, Invalid=4921, Unknown=0, NotChecked=0, Total=6480 [2022-01-28 13:01:32,494 INFO L933 BasicCegarLoop]: 526 mSDtfsCounter, 1146 mSDsluCounter, 8879 mSDsCounter, 0 mSdLazyCounter, 1989 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1146 SdHoareTripleChecker+Valid, 9216 SdHoareTripleChecker+Invalid, 1992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:01:32,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1146 Valid, 9216 Invalid, 1992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1989 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 13:01:32,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6873 states. [2022-01-28 13:01:32,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6873 to 5458. [2022-01-28 13:01:32,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5458 states, 5457 states have (on average 2.6331317573758475) internal successors, (14369), 5457 states have internal predecessors, (14369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:32,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5458 states to 5458 states and 14369 transitions. [2022-01-28 13:01:32,572 INFO L78 Accepts]: Start accepts. Automaton has 5458 states and 14369 transitions. Word has length 137 [2022-01-28 13:01:32,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:32,573 INFO L470 AbstractCegarLoop]: Abstraction has 5458 states and 14369 transitions. [2022-01-28 13:01:32,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:32,573 INFO L276 IsEmpty]: Start isEmpty. Operand 5458 states and 14369 transitions. [2022-01-28 13:01:32,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:01:32,579 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:32,579 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:01:32,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-01-28 13:01:32,579 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:01:32,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:32,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1345996353, now seen corresponding path program 64 times [2022-01-28 13:01:32,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:32,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624530929] [2022-01-28 13:01:32,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:32,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:32,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:33,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:33,068 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:33,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624530929] [2022-01-28 13:01:33,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624530929] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:33,068 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:33,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:01:33,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993893413] [2022-01-28 13:01:33,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:33,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:01:33,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:33,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:01:33,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:01:33,069 INFO L87 Difference]: Start difference. First operand 5458 states and 14369 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:37,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:37,135 INFO L93 Difference]: Finished difference Result 7138 states and 18802 transitions. [2022-01-28 13:01:37,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-28 13:01:37,136 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:01:37,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:37,146 INFO L225 Difference]: With dead ends: 7138 [2022-01-28 13:01:37,146 INFO L226 Difference]: Without dead ends: 6847 [2022-01-28 13:01:37,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 931 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1287, Invalid=4115, Unknown=0, NotChecked=0, Total=5402 [2022-01-28 13:01:37,147 INFO L933 BasicCegarLoop]: 520 mSDtfsCounter, 1128 mSDsluCounter, 8706 mSDsCounter, 0 mSdLazyCounter, 1974 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1128 SdHoareTripleChecker+Valid, 9055 SdHoareTripleChecker+Invalid, 1977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:01:37,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1128 Valid, 9055 Invalid, 1977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1974 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 13:01:37,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6847 states. [2022-01-28 13:01:37,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6847 to 5462. [2022-01-28 13:01:37,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5461 states have (on average 2.6324848928767626) internal successors, (14376), 5461 states have internal predecessors, (14376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:37,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 14376 transitions. [2022-01-28 13:01:37,230 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 14376 transitions. Word has length 137 [2022-01-28 13:01:37,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:37,230 INFO L470 AbstractCegarLoop]: Abstraction has 5462 states and 14376 transitions. [2022-01-28 13:01:37,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:37,230 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 14376 transitions. [2022-01-28 13:01:37,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:01:37,236 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:37,236 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:01:37,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-01-28 13:01:37,236 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:01:37,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:37,236 INFO L85 PathProgramCache]: Analyzing trace with hash 927814699, now seen corresponding path program 65 times [2022-01-28 13:01:37,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:37,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387515419] [2022-01-28 13:01:37,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:37,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:37,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:37,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:37,740 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:37,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387515419] [2022-01-28 13:01:37,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387515419] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:37,740 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:37,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:01:37,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350644146] [2022-01-28 13:01:37,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:37,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:01:37,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:37,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:01:37,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:01:37,741 INFO L87 Difference]: Start difference. First operand 5462 states and 14376 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:42,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:42,266 INFO L93 Difference]: Finished difference Result 7035 states and 18538 transitions. [2022-01-28 13:01:42,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-28 13:01:42,266 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:01:42,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:42,276 INFO L225 Difference]: With dead ends: 7035 [2022-01-28 13:01:42,276 INFO L226 Difference]: Without dead ends: 6778 [2022-01-28 13:01:42,276 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1029, Invalid=3003, Unknown=0, NotChecked=0, Total=4032 [2022-01-28 13:01:42,276 INFO L933 BasicCegarLoop]: 508 mSDtfsCounter, 995 mSDsluCounter, 8603 mSDsCounter, 0 mSdLazyCounter, 1933 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 8961 SdHoareTripleChecker+Invalid, 1936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:01:42,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [995 Valid, 8961 Invalid, 1936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1933 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 13:01:42,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6778 states. [2022-01-28 13:01:42,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6778 to 5466. [2022-01-28 13:01:42,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5466 states, 5465 states have (on average 2.6318389752973466) internal successors, (14383), 5465 states have internal predecessors, (14383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:42,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 14383 transitions. [2022-01-28 13:01:42,353 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 14383 transitions. Word has length 137 [2022-01-28 13:01:42,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:42,353 INFO L470 AbstractCegarLoop]: Abstraction has 5466 states and 14383 transitions. [2022-01-28 13:01:42,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:42,354 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 14383 transitions. [2022-01-28 13:01:42,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:01:42,360 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:42,360 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:01:42,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-01-28 13:01:42,360 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:01:42,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:42,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1874331163, now seen corresponding path program 66 times [2022-01-28 13:01:42,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:42,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211412955] [2022-01-28 13:01:42,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:42,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:42,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:42,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:42,856 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:42,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211412955] [2022-01-28 13:01:42,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211412955] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:42,856 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:42,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:01:42,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080356529] [2022-01-28 13:01:42,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:42,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:01:42,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:42,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:01:42,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:01:42,857 INFO L87 Difference]: Start difference. First operand 5466 states and 14383 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:47,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:47,136 INFO L93 Difference]: Finished difference Result 7006 states and 18456 transitions. [2022-01-28 13:01:47,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-28 13:01:47,136 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:01:47,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:47,145 INFO L225 Difference]: With dead ends: 7006 [2022-01-28 13:01:47,145 INFO L226 Difference]: Without dead ends: 6734 [2022-01-28 13:01:47,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1019, Invalid=3271, Unknown=0, NotChecked=0, Total=4290 [2022-01-28 13:01:47,146 INFO L933 BasicCegarLoop]: 513 mSDtfsCounter, 1119 mSDsluCounter, 8504 mSDsCounter, 0 mSdLazyCounter, 1935 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 8865 SdHoareTripleChecker+Invalid, 1938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:01:47,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1119 Valid, 8865 Invalid, 1938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1935 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 13:01:47,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6734 states. [2022-01-28 13:01:47,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6734 to 5454. [2022-01-28 13:01:47,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5454 states, 5453 states have (on average 2.6330460297084173) internal successors, (14358), 5453 states have internal predecessors, (14358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:47,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5454 states to 5454 states and 14358 transitions. [2022-01-28 13:01:47,225 INFO L78 Accepts]: Start accepts. Automaton has 5454 states and 14358 transitions. Word has length 137 [2022-01-28 13:01:47,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:47,225 INFO L470 AbstractCegarLoop]: Abstraction has 5454 states and 14358 transitions. [2022-01-28 13:01:47,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:47,225 INFO L276 IsEmpty]: Start isEmpty. Operand 5454 states and 14358 transitions. [2022-01-28 13:01:47,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:01:47,231 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:47,231 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:01:47,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-01-28 13:01:47,231 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:01:47,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:47,231 INFO L85 PathProgramCache]: Analyzing trace with hash 640481925, now seen corresponding path program 67 times [2022-01-28 13:01:47,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:47,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83982836] [2022-01-28 13:01:47,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:47,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:47,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:47,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:47,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:47,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83982836] [2022-01-28 13:01:47,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83982836] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:47,718 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:47,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:01:47,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342565246] [2022-01-28 13:01:47,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:47,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:01:47,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:47,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:01:47,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:01:47,719 INFO L87 Difference]: Start difference. First operand 5454 states and 14358 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:54,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:54,474 INFO L93 Difference]: Finished difference Result 6951 states and 18315 transitions. [2022-01-28 13:01:54,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-28 13:01:54,474 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:01:54,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:54,484 INFO L225 Difference]: With dead ends: 6951 [2022-01-28 13:01:54,484 INFO L226 Difference]: Without dead ends: 6666 [2022-01-28 13:01:54,484 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 715 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=1293, Invalid=3537, Unknown=0, NotChecked=0, Total=4830 [2022-01-28 13:01:54,484 INFO L933 BasicCegarLoop]: 510 mSDtfsCounter, 984 mSDsluCounter, 8826 mSDsCounter, 0 mSdLazyCounter, 1944 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 9170 SdHoareTripleChecker+Invalid, 1947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:01:54,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [984 Valid, 9170 Invalid, 1947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1944 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 13:01:54,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6666 states. [2022-01-28 13:01:54,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6666 to 5462. [2022-01-28 13:01:54,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5461 states have (on average 2.6324848928767626) internal successors, (14376), 5461 states have internal predecessors, (14376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:54,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 14376 transitions. [2022-01-28 13:01:54,558 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 14376 transitions. Word has length 137 [2022-01-28 13:01:54,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:54,558 INFO L470 AbstractCegarLoop]: Abstraction has 5462 states and 14376 transitions. [2022-01-28 13:01:54,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:54,559 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 14376 transitions. [2022-01-28 13:01:54,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:01:54,565 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:54,565 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:01:54,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-01-28 13:01:54,565 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:01:54,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:54,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1884444019, now seen corresponding path program 68 times [2022-01-28 13:01:54,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:54,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630291852] [2022-01-28 13:01:54,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:54,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:54,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:55,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:55,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:55,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630291852] [2022-01-28 13:01:55,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630291852] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:55,045 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:55,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:01:55,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462773137] [2022-01-28 13:01:55,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:55,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:01:55,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:55,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:01:55,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:01:55,046 INFO L87 Difference]: Start difference. First operand 5462 states and 14376 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:58,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:58,718 INFO L93 Difference]: Finished difference Result 6959 states and 18333 transitions. [2022-01-28 13:01:58,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-28 13:01:58,718 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:01:58,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:58,729 INFO L225 Difference]: With dead ends: 6959 [2022-01-28 13:01:58,729 INFO L226 Difference]: Without dead ends: 6702 [2022-01-28 13:01:58,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1107, Invalid=3183, Unknown=0, NotChecked=0, Total=4290 [2022-01-28 13:01:58,730 INFO L933 BasicCegarLoop]: 510 mSDtfsCounter, 978 mSDsluCounter, 8078 mSDsCounter, 0 mSdLazyCounter, 1819 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 8451 SdHoareTripleChecker+Invalid, 1822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-28 13:01:58,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [978 Valid, 8451 Invalid, 1822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1819 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-28 13:01:58,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6702 states. [2022-01-28 13:01:58,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6702 to 5466. [2022-01-28 13:01:58,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5466 states, 5465 states have (on average 2.6318389752973466) internal successors, (14383), 5465 states have internal predecessors, (14383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:58,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 14383 transitions. [2022-01-28 13:01:58,817 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 14383 transitions. Word has length 137 [2022-01-28 13:01:58,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:58,818 INFO L470 AbstractCegarLoop]: Abstraction has 5466 states and 14383 transitions. [2022-01-28 13:01:58,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:58,818 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 14383 transitions. [2022-01-28 13:01:58,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:01:58,824 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:58,824 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:01:58,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-01-28 13:01:58,824 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:01:58,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:58,825 INFO L85 PathProgramCache]: Analyzing trace with hash -917701843, now seen corresponding path program 69 times [2022-01-28 13:01:58,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:58,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774559379] [2022-01-28 13:01:58,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:58,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:58,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:59,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:59,337 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:59,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774559379] [2022-01-28 13:01:59,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774559379] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:59,337 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:59,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:01:59,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352153578] [2022-01-28 13:01:59,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:59,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:01:59,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:59,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:01:59,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:01:59,338 INFO L87 Difference]: Start difference. First operand 5466 states and 14383 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:03,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:03,396 INFO L93 Difference]: Finished difference Result 6930 states and 18251 transitions. [2022-01-28 13:02:03,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-28 13:02:03,397 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:02:03,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:03,407 INFO L225 Difference]: With dead ends: 6930 [2022-01-28 13:02:03,407 INFO L226 Difference]: Without dead ends: 6662 [2022-01-28 13:02:03,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=987, Invalid=3173, Unknown=0, NotChecked=0, Total=4160 [2022-01-28 13:02:03,408 INFO L933 BasicCegarLoop]: 516 mSDtfsCounter, 966 mSDsluCounter, 8875 mSDsCounter, 0 mSdLazyCounter, 2005 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 966 SdHoareTripleChecker+Valid, 9227 SdHoareTripleChecker+Invalid, 2008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:03,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [966 Valid, 9227 Invalid, 2008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2005 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 13:02:03,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6662 states. [2022-01-28 13:02:03,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6662 to 5458. [2022-01-28 13:02:03,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5458 states, 5457 states have (on average 2.632398753894081) internal successors, (14365), 5457 states have internal predecessors, (14365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:03,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5458 states to 5458 states and 14365 transitions. [2022-01-28 13:02:03,492 INFO L78 Accepts]: Start accepts. Automaton has 5458 states and 14365 transitions. Word has length 137 [2022-01-28 13:02:03,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:03,492 INFO L470 AbstractCegarLoop]: Abstraction has 5458 states and 14365 transitions. [2022-01-28 13:02:03,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:03,492 INFO L276 IsEmpty]: Start isEmpty. Operand 5458 states and 14365 transitions. [2022-01-28 13:02:03,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:02:03,498 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:03,498 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:02:03,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-01-28 13:02:03,499 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:02:03,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:03,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1910020413, now seen corresponding path program 70 times [2022-01-28 13:02:03,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:03,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585777477] [2022-01-28 13:02:03,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:03,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:03,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:04,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:04,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:04,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585777477] [2022-01-28 13:02:04,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585777477] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:04,008 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:04,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:02:04,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279738667] [2022-01-28 13:02:04,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:04,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:02:04,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:04,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:02:04,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:02:04,009 INFO L87 Difference]: Start difference. First operand 5458 states and 14365 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:08,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:08,761 INFO L93 Difference]: Finished difference Result 7062 states and 18593 transitions. [2022-01-28 13:02:08,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-28 13:02:08,761 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:02:08,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:08,769 INFO L225 Difference]: With dead ends: 7062 [2022-01-28 13:02:08,770 INFO L226 Difference]: Without dead ends: 6771 [2022-01-28 13:02:08,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 894 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1254, Invalid=4002, Unknown=0, NotChecked=0, Total=5256 [2022-01-28 13:02:08,770 INFO L933 BasicCegarLoop]: 523 mSDtfsCounter, 1114 mSDsluCounter, 8469 mSDsCounter, 0 mSdLazyCounter, 1916 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1114 SdHoareTripleChecker+Valid, 8825 SdHoareTripleChecker+Invalid, 1919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:08,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1114 Valid, 8825 Invalid, 1919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1916 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 13:02:08,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6771 states. [2022-01-28 13:02:08,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6771 to 5462. [2022-01-28 13:02:08,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5461 states have (on average 2.63175242629555) internal successors, (14372), 5461 states have internal predecessors, (14372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:08,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 14372 transitions. [2022-01-28 13:02:08,834 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 14372 transitions. Word has length 137 [2022-01-28 13:02:08,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:08,835 INFO L470 AbstractCegarLoop]: Abstraction has 5462 states and 14372 transitions. [2022-01-28 13:02:08,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:08,835 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 14372 transitions. [2022-01-28 13:02:08,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:02:08,840 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:08,840 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:02:08,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-01-28 13:02:08,840 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:02:08,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:08,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1966765229, now seen corresponding path program 71 times [2022-01-28 13:02:08,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:08,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587426155] [2022-01-28 13:02:08,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:08,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:08,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:09,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:09,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:09,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587426155] [2022-01-28 13:02:09,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587426155] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:09,364 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:09,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:02:09,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218958817] [2022-01-28 13:02:09,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:09,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:02:09,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:09,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:02:09,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:02:09,364 INFO L87 Difference]: Start difference. First operand 5462 states and 14372 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:16,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:16,362 INFO L93 Difference]: Finished difference Result 6959 states and 18329 transitions. [2022-01-28 13:02:16,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-28 13:02:16,363 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:02:16,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:16,372 INFO L225 Difference]: With dead ends: 6959 [2022-01-28 13:02:16,372 INFO L226 Difference]: Without dead ends: 6702 [2022-01-28 13:02:16,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 567 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=1068, Invalid=3092, Unknown=0, NotChecked=0, Total=4160 [2022-01-28 13:02:16,372 INFO L933 BasicCegarLoop]: 510 mSDtfsCounter, 1007 mSDsluCounter, 8021 mSDsCounter, 0 mSdLazyCounter, 1806 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1007 SdHoareTripleChecker+Valid, 8395 SdHoareTripleChecker+Invalid, 1809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:16,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1007 Valid, 8395 Invalid, 1809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1806 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 13:02:16,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6702 states. [2022-01-28 13:02:16,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6702 to 5466. [2022-01-28 13:02:16,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5466 states, 5465 states have (on average 2.631107044830741) internal successors, (14379), 5465 states have internal predecessors, (14379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:16,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 14379 transitions. [2022-01-28 13:02:16,450 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 14379 transitions. Word has length 137 [2022-01-28 13:02:16,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:16,450 INFO L470 AbstractCegarLoop]: Abstraction has 5466 states and 14379 transitions. [2022-01-28 13:02:16,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:16,450 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 14379 transitions. [2022-01-28 13:02:16,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:02:16,456 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:16,456 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:02:16,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-01-28 13:02:16,457 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:02:16,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:16,457 INFO L85 PathProgramCache]: Analyzing trace with hash -835380633, now seen corresponding path program 72 times [2022-01-28 13:02:16,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:16,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603839435] [2022-01-28 13:02:16,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:16,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:16,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:16,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:16,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:16,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603839435] [2022-01-28 13:02:16,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603839435] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:16,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:16,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:02:16,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092989745] [2022-01-28 13:02:16,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:16,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:02:16,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:16,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:02:16,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:02:16,971 INFO L87 Difference]: Start difference. First operand 5466 states and 14379 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:21,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:21,255 INFO L93 Difference]: Finished difference Result 6930 states and 18247 transitions. [2022-01-28 13:02:21,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-28 13:02:21,255 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:02:21,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:21,263 INFO L225 Difference]: With dead ends: 6930 [2022-01-28 13:02:21,264 INFO L226 Difference]: Without dead ends: 6654 [2022-01-28 13:02:21,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 585 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1024, Invalid=3266, Unknown=0, NotChecked=0, Total=4290 [2022-01-28 13:02:21,264 INFO L933 BasicCegarLoop]: 518 mSDtfsCounter, 984 mSDsluCounter, 8870 mSDsCounter, 0 mSdLazyCounter, 2002 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 9224 SdHoareTripleChecker+Invalid, 2005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:21,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [984 Valid, 9224 Invalid, 2005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2002 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 13:02:21,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6654 states. [2022-01-28 13:02:21,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6654 to 5450. [2022-01-28 13:02:21,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5450 states, 5449 states have (on average 2.6329601761791155) internal successors, (14347), 5449 states have internal predecessors, (14347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:21,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5450 states to 5450 states and 14347 transitions. [2022-01-28 13:02:21,334 INFO L78 Accepts]: Start accepts. Automaton has 5450 states and 14347 transitions. Word has length 137 [2022-01-28 13:02:21,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:21,334 INFO L470 AbstractCegarLoop]: Abstraction has 5450 states and 14347 transitions. [2022-01-28 13:02:21,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:21,335 INFO L276 IsEmpty]: Start isEmpty. Operand 5450 states and 14347 transitions. [2022-01-28 13:02:21,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:02:21,340 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:21,340 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:02:21,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-01-28 13:02:21,340 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:02:21,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:21,341 INFO L85 PathProgramCache]: Analyzing trace with hash -854423229, now seen corresponding path program 73 times [2022-01-28 13:02:21,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:21,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759338079] [2022-01-28 13:02:21,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:21,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:21,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:21,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:21,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:21,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759338079] [2022-01-28 13:02:21,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759338079] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:21,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:21,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:02:21,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580890606] [2022-01-28 13:02:21,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:21,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:02:21,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:21,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:02:21,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:02:21,831 INFO L87 Difference]: Start difference. First operand 5450 states and 14347 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:27,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:27,896 INFO L93 Difference]: Finished difference Result 7326 states and 19273 transitions. [2022-01-28 13:02:27,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-01-28 13:02:27,896 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:02:27,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:27,905 INFO L225 Difference]: With dead ends: 7326 [2022-01-28 13:02:27,905 INFO L226 Difference]: Without dead ends: 6911 [2022-01-28 13:02:27,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1565 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=1905, Invalid=5927, Unknown=0, NotChecked=0, Total=7832 [2022-01-28 13:02:27,906 INFO L933 BasicCegarLoop]: 539 mSDtfsCounter, 1263 mSDsluCounter, 9208 mSDsCounter, 0 mSdLazyCounter, 2076 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1263 SdHoareTripleChecker+Valid, 9538 SdHoareTripleChecker+Invalid, 2079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:27,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1263 Valid, 9538 Invalid, 2079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2076 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-28 13:02:27,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6911 states. [2022-01-28 13:02:27,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6911 to 5462. [2022-01-28 13:02:27,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5461 states have (on average 2.631019959714338) internal successors, (14368), 5461 states have internal predecessors, (14368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:27,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 14368 transitions. [2022-01-28 13:02:27,978 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 14368 transitions. Word has length 137 [2022-01-28 13:02:27,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:27,978 INFO L470 AbstractCegarLoop]: Abstraction has 5462 states and 14368 transitions. [2022-01-28 13:02:27,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:27,978 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 14368 transitions. [2022-01-28 13:02:27,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:02:27,984 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:27,984 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:02:27,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-01-28 13:02:27,985 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:02:27,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:27,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1540201579, now seen corresponding path program 74 times [2022-01-28 13:02:27,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:27,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596580393] [2022-01-28 13:02:27,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:27,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:27,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:28,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:28,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:28,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596580393] [2022-01-28 13:02:28,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596580393] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:28,473 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:28,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:02:28,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255569345] [2022-01-28 13:02:28,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:28,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:02:28,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:28,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:02:28,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:02:28,473 INFO L87 Difference]: Start difference. First operand 5462 states and 14368 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:34,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:34,060 INFO L93 Difference]: Finished difference Result 7175 states and 18877 transitions. [2022-01-28 13:02:34,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-28 13:02:34,060 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:02:34,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:34,068 INFO L225 Difference]: With dead ends: 7175 [2022-01-28 13:02:34,069 INFO L226 Difference]: Without dead ends: 6853 [2022-01-28 13:02:34,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1285 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=1588, Invalid=5054, Unknown=0, NotChecked=0, Total=6642 [2022-01-28 13:02:34,069 INFO L933 BasicCegarLoop]: 532 mSDtfsCounter, 1154 mSDsluCounter, 8605 mSDsCounter, 0 mSdLazyCounter, 1933 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1154 SdHoareTripleChecker+Valid, 8960 SdHoareTripleChecker+Invalid, 1936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:34,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1154 Valid, 8960 Invalid, 1936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1933 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 13:02:34,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6853 states. [2022-01-28 13:02:34,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6853 to 5466. [2022-01-28 13:02:34,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5466 states, 5465 states have (on average 2.6303751143641354) internal successors, (14375), 5465 states have internal predecessors, (14375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:34,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 14375 transitions. [2022-01-28 13:02:34,137 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 14375 transitions. Word has length 137 [2022-01-28 13:02:34,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:34,137 INFO L470 AbstractCegarLoop]: Abstraction has 5466 states and 14375 transitions. [2022-01-28 13:02:34,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:34,137 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 14375 transitions. [2022-01-28 13:02:34,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:02:34,142 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:34,143 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:02:34,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-01-28 13:02:34,143 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:02:34,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:34,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1835804415, now seen corresponding path program 75 times [2022-01-28 13:02:34,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:34,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937178848] [2022-01-28 13:02:34,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:34,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:34,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:34,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:34,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:34,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937178848] [2022-01-28 13:02:34,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937178848] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:34,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:34,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:02:34,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902170440] [2022-01-28 13:02:34,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:34,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:02:34,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:34,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:02:34,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:02:34,648 INFO L87 Difference]: Start difference. First operand 5466 states and 14375 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:39,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:39,503 INFO L93 Difference]: Finished difference Result 7086 states and 18647 transitions. [2022-01-28 13:02:39,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-28 13:02:39,503 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:02:39,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:39,512 INFO L225 Difference]: With dead ends: 7086 [2022-01-28 13:02:39,512 INFO L226 Difference]: Without dead ends: 6795 [2022-01-28 13:02:39,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 938 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1277, Invalid=4125, Unknown=0, NotChecked=0, Total=5402 [2022-01-28 13:02:39,513 INFO L933 BasicCegarLoop]: 523 mSDtfsCounter, 1034 mSDsluCounter, 9417 mSDsCounter, 0 mSdLazyCounter, 2091 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1034 SdHoareTripleChecker+Valid, 9748 SdHoareTripleChecker+Invalid, 2094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:39,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1034 Valid, 9748 Invalid, 2094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2091 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 13:02:39,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6795 states. [2022-01-28 13:02:39,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6795 to 5470. [2022-01-28 13:02:39,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5470 states, 5469 states have (on average 2.6297312122874383) internal successors, (14382), 5469 states have internal predecessors, (14382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:39,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5470 states to 5470 states and 14382 transitions. [2022-01-28 13:02:39,588 INFO L78 Accepts]: Start accepts. Automaton has 5470 states and 14382 transitions. Word has length 137 [2022-01-28 13:02:39,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:39,588 INFO L470 AbstractCegarLoop]: Abstraction has 5470 states and 14382 transitions. [2022-01-28 13:02:39,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:39,589 INFO L276 IsEmpty]: Start isEmpty. Operand 5470 states and 14382 transitions. [2022-01-28 13:02:39,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:02:39,595 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:39,595 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:02:39,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-01-28 13:02:39,595 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:02:39,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:39,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1417622761, now seen corresponding path program 76 times [2022-01-28 13:02:39,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:39,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136873572] [2022-01-28 13:02:39,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:39,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:39,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:40,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:40,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:40,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136873572] [2022-01-28 13:02:40,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136873572] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:40,100 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:40,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:02:40,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423947747] [2022-01-28 13:02:40,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:40,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:02:40,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:40,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:02:40,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:02:40,101 INFO L87 Difference]: Start difference. First operand 5470 states and 14382 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:46,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:46,720 INFO L93 Difference]: Finished difference Result 6967 states and 18339 transitions. [2022-01-28 13:02:46,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-28 13:02:46,720 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:02:46,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:46,728 INFO L225 Difference]: With dead ends: 6967 [2022-01-28 13:02:46,729 INFO L226 Difference]: Without dead ends: 6710 [2022-01-28 13:02:46,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=996, Invalid=2910, Unknown=0, NotChecked=0, Total=3906 [2022-01-28 13:02:46,729 INFO L933 BasicCegarLoop]: 507 mSDtfsCounter, 1042 mSDsluCounter, 8000 mSDsCounter, 0 mSdLazyCounter, 1788 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1042 SdHoareTripleChecker+Valid, 8371 SdHoareTripleChecker+Invalid, 1791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:46,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1042 Valid, 8371 Invalid, 1791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1788 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 13:02:46,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6710 states. [2022-01-28 13:02:46,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6710 to 5474. [2022-01-28 13:02:46,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5474 states, 5473 states have (on average 2.6290882514160425) internal successors, (14389), 5473 states have internal predecessors, (14389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:46,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5474 states to 5474 states and 14389 transitions. [2022-01-28 13:02:46,805 INFO L78 Accepts]: Start accepts. Automaton has 5474 states and 14389 transitions. Word has length 137 [2022-01-28 13:02:46,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:46,805 INFO L470 AbstractCegarLoop]: Abstraction has 5474 states and 14389 transitions. [2022-01-28 13:02:46,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:46,806 INFO L276 IsEmpty]: Start isEmpty. Operand 5474 states and 14389 transitions. [2022-01-28 13:02:46,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:02:46,812 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:46,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:02:46,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-01-28 13:02:46,812 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:02:46,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:46,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1384523101, now seen corresponding path program 77 times [2022-01-28 13:02:46,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:46,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786583726] [2022-01-28 13:02:46,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:46,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:46,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:47,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:47,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:47,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786583726] [2022-01-28 13:02:47,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786583726] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:47,274 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:47,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:02:47,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652656577] [2022-01-28 13:02:47,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:47,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:02:47,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:47,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:02:47,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:02:47,274 INFO L87 Difference]: Start difference. First operand 5474 states and 14389 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:51,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:51,249 INFO L93 Difference]: Finished difference Result 6938 states and 18257 transitions. [2022-01-28 13:02:51,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-28 13:02:51,249 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:02:51,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:51,258 INFO L225 Difference]: With dead ends: 6938 [2022-01-28 13:02:51,258 INFO L226 Difference]: Without dead ends: 6642 [2022-01-28 13:02:51,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1013, Invalid=3277, Unknown=0, NotChecked=0, Total=4290 [2022-01-28 13:02:51,259 INFO L933 BasicCegarLoop]: 515 mSDtfsCounter, 1047 mSDsluCounter, 9296 mSDsCounter, 0 mSdLazyCounter, 2071 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 9634 SdHoareTripleChecker+Invalid, 2074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:51,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1047 Valid, 9634 Invalid, 2074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2071 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 13:02:51,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6642 states. [2022-01-28 13:02:51,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6642 to 5438. [2022-01-28 13:02:51,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5438 states, 5437 states have (on average 2.632701857642082) internal successors, (14314), 5437 states have internal predecessors, (14314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:51,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5438 states to 5438 states and 14314 transitions. [2022-01-28 13:02:51,332 INFO L78 Accepts]: Start accepts. Automaton has 5438 states and 14314 transitions. Word has length 137 [2022-01-28 13:02:51,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:51,332 INFO L470 AbstractCegarLoop]: Abstraction has 5438 states and 14314 transitions. [2022-01-28 13:02:51,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:51,332 INFO L276 IsEmpty]: Start isEmpty. Operand 5438 states and 14314 transitions. [2022-01-28 13:02:51,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:02:51,338 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:51,338 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:02:51,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-01-28 13:02:51,338 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:02:51,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:51,338 INFO L85 PathProgramCache]: Analyzing trace with hash 2088442029, now seen corresponding path program 78 times [2022-01-28 13:02:51,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:51,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951409968] [2022-01-28 13:02:51,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:51,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:51,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:51,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:51,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:51,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951409968] [2022-01-28 13:02:51,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951409968] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:51,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:51,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:02:51,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639946183] [2022-01-28 13:02:51,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:51,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:02:51,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:51,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:02:51,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:02:51,833 INFO L87 Difference]: Start difference. First operand 5438 states and 14314 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:03:03,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:03:03,810 INFO L93 Difference]: Finished difference Result 7400 states and 19373 transitions. [2022-01-28 13:03:03,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-01-28 13:03:03,810 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:03:03,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:03:03,818 INFO L225 Difference]: With dead ends: 7400 [2022-01-28 13:03:03,818 INFO L226 Difference]: Without dead ends: 6954 [2022-01-28 13:03:03,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1902 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=2191, Invalid=6551, Unknown=0, NotChecked=0, Total=8742 [2022-01-28 13:03:03,819 INFO L933 BasicCegarLoop]: 547 mSDtfsCounter, 1508 mSDsluCounter, 8629 mSDsCounter, 0 mSdLazyCounter, 1890 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 8978 SdHoareTripleChecker+Invalid, 1893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-28 13:03:03,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1508 Valid, 8978 Invalid, 1893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1890 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-28 13:03:03,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6954 states. [2022-01-28 13:03:03,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6954 to 5442. [2022-01-28 13:03:03,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5442 states, 5441 states have (on average 2.632052931446425) internal successors, (14321), 5441 states have internal predecessors, (14321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:03:03,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5442 states to 5442 states and 14321 transitions. [2022-01-28 13:03:03,881 INFO L78 Accepts]: Start accepts. Automaton has 5442 states and 14321 transitions. Word has length 137 [2022-01-28 13:03:03,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:03:03,881 INFO L470 AbstractCegarLoop]: Abstraction has 5442 states and 14321 transitions. [2022-01-28 13:03:03,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:03:03,881 INFO L276 IsEmpty]: Start isEmpty. Operand 5442 states and 14321 transitions. [2022-01-28 13:03:03,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:03:03,887 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:03:03,887 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:03:03,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-01-28 13:03:03,887 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:03:03,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:03:03,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1617664853, now seen corresponding path program 79 times [2022-01-28 13:03:03,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:03:03,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757061880] [2022-01-28 13:03:03,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:03:03,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:03:03,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:03:04,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:03:04,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:03:04,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757061880] [2022-01-28 13:03:04,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757061880] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:03:04,388 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:03:04,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:03:04,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600780956] [2022-01-28 13:03:04,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:03:04,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:03:04,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:03:04,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:03:04,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:03:04,389 INFO L87 Difference]: Start difference. First operand 5442 states and 14321 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:03:10,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:03:10,832 INFO L93 Difference]: Finished difference Result 7186 states and 18884 transitions. [2022-01-28 13:03:10,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-28 13:03:10,832 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:03:10,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:03:10,840 INFO L225 Difference]: With dead ends: 7186 [2022-01-28 13:03:10,840 INFO L226 Difference]: Without dead ends: 6771 [2022-01-28 13:03:10,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1624 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=1927, Invalid=6083, Unknown=0, NotChecked=0, Total=8010 [2022-01-28 13:03:10,841 INFO L933 BasicCegarLoop]: 541 mSDtfsCounter, 1228 mSDsluCounter, 9611 mSDsCounter, 0 mSdLazyCounter, 2097 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1228 SdHoareTripleChecker+Valid, 9930 SdHoareTripleChecker+Invalid, 2100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-28 13:03:10,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1228 Valid, 9930 Invalid, 2100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2097 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-28 13:03:10,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6771 states. [2022-01-28 13:03:10,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6771 to 5454. [2022-01-28 13:03:10,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5454 states, 5453 states have (on average 2.6301118650284248) internal successors, (14342), 5453 states have internal predecessors, (14342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:03:10,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5454 states to 5454 states and 14342 transitions. [2022-01-28 13:03:10,913 INFO L78 Accepts]: Start accepts. Automaton has 5454 states and 14342 transitions. Word has length 137 [2022-01-28 13:03:10,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:03:10,913 INFO L470 AbstractCegarLoop]: Abstraction has 5454 states and 14342 transitions. [2022-01-28 13:03:10,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:03:10,913 INFO L276 IsEmpty]: Start isEmpty. Operand 5454 states and 14342 transitions. [2022-01-28 13:03:10,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:03:10,919 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:03:10,919 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:03:10,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-01-28 13:03:10,919 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:03:10,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:03:10,920 INFO L85 PathProgramCache]: Analyzing trace with hash 213661041, now seen corresponding path program 80 times [2022-01-28 13:03:10,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:03:10,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403953458] [2022-01-28 13:03:10,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:03:10,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:03:10,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:03:11,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:03:11,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:03:11,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403953458] [2022-01-28 13:03:11,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403953458] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:03:11,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:03:11,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:03:11,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848585144] [2022-01-28 13:03:11,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:03:11,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:03:11,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:03:11,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:03:11,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:03:11,433 INFO L87 Difference]: Start difference. First operand 5454 states and 14342 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:03:28,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:03:28,075 INFO L93 Difference]: Finished difference Result 7039 states and 18499 transitions. [2022-01-28 13:03:28,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-28 13:03:28,076 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:03:28,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:03:28,085 INFO L225 Difference]: With dead ends: 7039 [2022-01-28 13:03:28,086 INFO L226 Difference]: Without dead ends: 6717 [2022-01-28 13:03:28,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1293 ImplicationChecksByTransitivity, 16.0s TimeCoverageRelationStatistics Valid=1573, Invalid=5069, Unknown=0, NotChecked=0, Total=6642 [2022-01-28 13:03:28,086 INFO L933 BasicCegarLoop]: 531 mSDtfsCounter, 1195 mSDsluCounter, 8482 mSDsCounter, 0 mSdLazyCounter, 1864 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1195 SdHoareTripleChecker+Valid, 8838 SdHoareTripleChecker+Invalid, 1867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:03:28,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1195 Valid, 8838 Invalid, 1867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1864 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 13:03:28,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6717 states. [2022-01-28 13:03:28,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6717 to 5458. [2022-01-28 13:03:28,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5458 states, 5457 states have (on average 2.6294667399670146) internal successors, (14349), 5457 states have internal predecessors, (14349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:03:28,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5458 states to 5458 states and 14349 transitions. [2022-01-28 13:03:28,170 INFO L78 Accepts]: Start accepts. Automaton has 5458 states and 14349 transitions. Word has length 137 [2022-01-28 13:03:28,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:03:28,170 INFO L470 AbstractCegarLoop]: Abstraction has 5458 states and 14349 transitions. [2022-01-28 13:03:28,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:03:28,170 INFO L276 IsEmpty]: Start isEmpty. Operand 5458 states and 14349 transitions. [2022-01-28 13:03:28,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:03:28,176 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:03:28,176 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:03:28,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-01-28 13:03:28,176 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:03:28,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:03:28,177 INFO L85 PathProgramCache]: Analyzing trace with hash 509263877, now seen corresponding path program 81 times [2022-01-28 13:03:28,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:03:28,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314304339] [2022-01-28 13:03:28,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:03:28,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:03:28,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:03:28,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:03:28,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:03:28,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314304339] [2022-01-28 13:03:28,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314304339] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:03:28,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:03:28,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:03:28,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134392224] [2022-01-28 13:03:28,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:03:28,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:03:28,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:03:28,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:03:28,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:03:28,674 INFO L87 Difference]: Start difference. First operand 5458 states and 14349 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:03:33,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:03:33,560 INFO L93 Difference]: Finished difference Result 6954 states and 18280 transitions. [2022-01-28 13:03:33,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-28 13:03:33,560 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:03:33,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:03:33,568 INFO L225 Difference]: With dead ends: 6954 [2022-01-28 13:03:33,569 INFO L226 Difference]: Without dead ends: 6663 [2022-01-28 13:03:33,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 889 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=1265, Invalid=4137, Unknown=0, NotChecked=0, Total=5402 [2022-01-28 13:03:33,569 INFO L933 BasicCegarLoop]: 522 mSDtfsCounter, 1062 mSDsluCounter, 9093 mSDsCounter, 0 mSdLazyCounter, 1988 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1062 SdHoareTripleChecker+Valid, 9432 SdHoareTripleChecker+Invalid, 1991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:03:33,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1062 Valid, 9432 Invalid, 1991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1988 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 13:03:33,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6663 states. [2022-01-28 13:03:33,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6663 to 5462. [2022-01-28 13:03:33,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5461 states have (on average 2.6288225599707014) internal successors, (14356), 5461 states have internal predecessors, (14356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:03:33,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 14356 transitions. [2022-01-28 13:03:33,640 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 14356 transitions. Word has length 137 [2022-01-28 13:03:33,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:03:33,641 INFO L470 AbstractCegarLoop]: Abstraction has 5462 states and 14356 transitions. [2022-01-28 13:03:33,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:03:33,641 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 14356 transitions. [2022-01-28 13:03:33,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:03:33,647 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:03:33,647 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:03:33,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-01-28 13:03:33,647 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:03:33,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:03:33,647 INFO L85 PathProgramCache]: Analyzing trace with hash 91082223, now seen corresponding path program 82 times [2022-01-28 13:03:33,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:03:33,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385562771] [2022-01-28 13:03:33,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:03:33,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:03:33,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:03:34,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:03:34,132 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:03:34,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385562771] [2022-01-28 13:03:34,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385562771] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:03:34,132 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:03:34,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:03:34,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138480299] [2022-01-28 13:03:34,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:03:34,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:03:34,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:03:34,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:03:34,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:03:34,133 INFO L87 Difference]: Start difference. First operand 5462 states and 14356 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:03:38,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:03:38,259 INFO L93 Difference]: Finished difference Result 6823 states and 17947 transitions. [2022-01-28 13:03:38,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-28 13:03:38,260 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:03:38,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:03:38,269 INFO L225 Difference]: With dead ends: 6823 [2022-01-28 13:03:38,270 INFO L226 Difference]: Without dead ends: 6566 [2022-01-28 13:03:38,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=963, Invalid=2819, Unknown=0, NotChecked=0, Total=3782 [2022-01-28 13:03:38,270 INFO L933 BasicCegarLoop]: 507 mSDtfsCounter, 1050 mSDsluCounter, 7978 mSDsCounter, 0 mSdLazyCounter, 1740 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1050 SdHoareTripleChecker+Valid, 8351 SdHoareTripleChecker+Invalid, 1743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-28 13:03:38,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1050 Valid, 8351 Invalid, 1743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1740 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-28 13:03:38,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6566 states. [2022-01-28 13:03:38,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6566 to 5466. [2022-01-28 13:03:38,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5466 states, 5465 states have (on average 2.628179322964318) internal successors, (14363), 5465 states have internal predecessors, (14363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:03:38,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 14363 transitions. [2022-01-28 13:03:38,353 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 14363 transitions. Word has length 137 [2022-01-28 13:03:38,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:03:38,353 INFO L470 AbstractCegarLoop]: Abstraction has 5466 states and 14363 transitions. [2022-01-28 13:03:38,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:03:38,353 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 14363 transitions. [2022-01-28 13:03:38,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:03:38,360 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:03:38,360 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:03:38,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-01-28 13:03:38,360 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:03:38,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:03:38,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1583903657, now seen corresponding path program 83 times [2022-01-28 13:03:38,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:03:38,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315777800] [2022-01-28 13:03:38,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:03:38,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:03:38,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:03:38,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:03:38,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:03:38,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315777800] [2022-01-28 13:03:38,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315777800] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:03:38,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:03:38,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:03:38,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755550662] [2022-01-28 13:03:38,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:03:38,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:03:38,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:03:38,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:03:38,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:03:38,854 INFO L87 Difference]: Start difference. First operand 5466 states and 14363 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:03:43,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:03:43,017 INFO L93 Difference]: Finished difference Result 6762 states and 17781 transitions. [2022-01-28 13:03:43,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-28 13:03:43,018 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:03:43,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:03:43,027 INFO L225 Difference]: With dead ends: 6762 [2022-01-28 13:03:43,027 INFO L226 Difference]: Without dead ends: 6418 [2022-01-28 13:03:43,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1009, Invalid=3281, Unknown=0, NotChecked=0, Total=4290 [2022-01-28 13:03:43,028 INFO L933 BasicCegarLoop]: 507 mSDtfsCounter, 1020 mSDsluCounter, 8752 mSDsCounter, 0 mSdLazyCounter, 1897 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1020 SdHoareTripleChecker+Valid, 9100 SdHoareTripleChecker+Invalid, 1900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:03:43,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1020 Valid, 9100 Invalid, 1900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1897 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 13:03:43,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6418 states. [2022-01-28 13:03:43,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6418 to 5382. [2022-01-28 13:03:43,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5382 states, 5381 states have (on average 2.632224493588552) internal successors, (14164), 5381 states have internal predecessors, (14164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:03:43,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5382 states to 5382 states and 14164 transitions. [2022-01-28 13:03:43,107 INFO L78 Accepts]: Start accepts. Automaton has 5382 states and 14164 transitions. Word has length 137 [2022-01-28 13:03:43,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:03:43,107 INFO L470 AbstractCegarLoop]: Abstraction has 5382 states and 14164 transitions. [2022-01-28 13:03:43,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:03:43,108 INFO L276 IsEmpty]: Start isEmpty. Operand 5382 states and 14164 transitions. [2022-01-28 13:03:43,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:03:43,113 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:03:43,113 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:03:43,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-01-28 13:03:43,114 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:03:43,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:03:43,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1678521553, now seen corresponding path program 84 times [2022-01-28 13:03:43,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:03:43,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309323264] [2022-01-28 13:03:43,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:03:43,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:03:43,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:03:43,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:03:43,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:03:43,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309323264] [2022-01-28 13:03:43,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309323264] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:03:43,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:03:43,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:03:43,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116600687] [2022-01-28 13:03:43,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:03:43,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:03:43,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:03:43,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:03:43,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:03:43,595 INFO L87 Difference]: Start difference. First operand 5382 states and 14164 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:03:51,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:03:51,533 INFO L93 Difference]: Finished difference Result 6479 states and 17049 transitions. [2022-01-28 13:03:51,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-01-28 13:03:51,533 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:03:51,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:03:51,541 INFO L225 Difference]: With dead ends: 6479 [2022-01-28 13:03:51,541 INFO L226 Difference]: Without dead ends: 6166 [2022-01-28 13:03:51,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1005 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=1635, Invalid=4371, Unknown=0, NotChecked=0, Total=6006 [2022-01-28 13:03:51,542 INFO L933 BasicCegarLoop]: 503 mSDtfsCounter, 1042 mSDsluCounter, 8334 mSDsCounter, 0 mSdLazyCounter, 1802 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1042 SdHoareTripleChecker+Valid, 8671 SdHoareTripleChecker+Invalid, 1805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:03:51,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1042 Valid, 8671 Invalid, 1805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1802 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 13:03:51,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6166 states. [2022-01-28 13:03:51,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6166 to 5410. [2022-01-28 13:03:51,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5410 states, 5409 states have (on average 2.63209465705306) internal successors, (14237), 5409 states have internal predecessors, (14237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:03:51,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5410 states to 5410 states and 14237 transitions. [2022-01-28 13:03:51,617 INFO L78 Accepts]: Start accepts. Automaton has 5410 states and 14237 transitions. Word has length 137 [2022-01-28 13:03:51,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:03:51,617 INFO L470 AbstractCegarLoop]: Abstraction has 5410 states and 14237 transitions. [2022-01-28 13:03:51,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:03:51,617 INFO L276 IsEmpty]: Start isEmpty. Operand 5410 states and 14237 transitions. [2022-01-28 13:03:51,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:03:51,623 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:03:51,623 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:03:51,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-01-28 13:03:51,624 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:03:51,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:03:51,624 INFO L85 PathProgramCache]: Analyzing trace with hash 510229385, now seen corresponding path program 85 times [2022-01-28 13:03:51,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:03:51,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241892053] [2022-01-28 13:03:51,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:03:51,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:03:51,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:03:52,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:03:52,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:03:52,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241892053] [2022-01-28 13:03:52,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241892053] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:03:52,118 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:03:52,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:03:52,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103157865] [2022-01-28 13:03:52,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:03:52,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:03:52,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:03:52,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:03:52,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:03:52,119 INFO L87 Difference]: Start difference. First operand 5410 states and 14237 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:03:58,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:03:58,043 INFO L93 Difference]: Finished difference Result 6551 states and 17235 transitions. [2022-01-28 13:03:58,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-28 13:03:58,043 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:03:58,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:03:58,051 INFO L225 Difference]: With dead ends: 6551 [2022-01-28 13:03:58,051 INFO L226 Difference]: Without dead ends: 6266 [2022-01-28 13:03:58,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 806 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=1419, Invalid=3983, Unknown=0, NotChecked=0, Total=5402 [2022-01-28 13:03:58,052 INFO L933 BasicCegarLoop]: 503 mSDtfsCounter, 997 mSDsluCounter, 8593 mSDsCounter, 0 mSdLazyCounter, 1880 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 8935 SdHoareTripleChecker+Invalid, 1883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:03:58,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [997 Valid, 8935 Invalid, 1883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1880 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 13:03:58,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6266 states. [2022-01-28 13:03:58,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6266 to 5414. [2022-01-28 13:03:58,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5414 states, 5413 states have (on average 2.631442822833918) internal successors, (14244), 5413 states have internal predecessors, (14244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:03:58,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5414 states to 5414 states and 14244 transitions. [2022-01-28 13:03:58,126 INFO L78 Accepts]: Start accepts. Automaton has 5414 states and 14244 transitions. Word has length 137 [2022-01-28 13:03:58,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:03:58,127 INFO L470 AbstractCegarLoop]: Abstraction has 5414 states and 14244 transitions. [2022-01-28 13:03:58,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:03:58,127 INFO L276 IsEmpty]: Start isEmpty. Operand 5414 states and 14244 transitions. [2022-01-28 13:03:58,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:03:58,133 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:03:58,133 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:03:58,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-01-28 13:03:58,133 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:03:58,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:03:58,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1754191479, now seen corresponding path program 86 times [2022-01-28 13:03:58,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:03:58,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761472020] [2022-01-28 13:03:58,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:03:58,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:03:58,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:03:58,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:03:58,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:03:58,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761472020] [2022-01-28 13:03:58,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761472020] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:03:58,626 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:03:58,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:03:58,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055272590] [2022-01-28 13:03:58,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:03:58,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:03:58,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:03:58,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:03:58,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:03:58,627 INFO L87 Difference]: Start difference. First operand 5414 states and 14244 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:04:05,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:04:05,821 INFO L93 Difference]: Finished difference Result 6471 states and 17023 transitions. [2022-01-28 13:04:05,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-28 13:04:05,822 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:04:05,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:04:05,830 INFO L225 Difference]: With dead ends: 6471 [2022-01-28 13:04:05,831 INFO L226 Difference]: Without dead ends: 6214 [2022-01-28 13:04:05,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=1089, Invalid=3201, Unknown=0, NotChecked=0, Total=4290 [2022-01-28 13:04:05,831 INFO L933 BasicCegarLoop]: 502 mSDtfsCounter, 899 mSDsluCounter, 8833 mSDsCounter, 0 mSdLazyCounter, 1953 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 899 SdHoareTripleChecker+Valid, 9174 SdHoareTripleChecker+Invalid, 1956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-28 13:04:05,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [899 Valid, 9174 Invalid, 1956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1953 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-28 13:04:05,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6214 states. [2022-01-28 13:04:05,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6214 to 5418. [2022-01-28 13:04:05,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5417 states have (on average 2.6307919512645377) internal successors, (14251), 5417 states have internal predecessors, (14251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:04:05,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 14251 transitions. [2022-01-28 13:04:05,904 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 14251 transitions. Word has length 137 [2022-01-28 13:04:05,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:04:05,904 INFO L470 AbstractCegarLoop]: Abstraction has 5418 states and 14251 transitions. [2022-01-28 13:04:05,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:04:05,904 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 14251 transitions. [2022-01-28 13:04:05,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:04:05,910 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:04:05,910 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:04:05,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-01-28 13:04:05,911 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:04:05,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:04:05,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1047954383, now seen corresponding path program 87 times [2022-01-28 13:04:05,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:04:05,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752260444] [2022-01-28 13:04:05,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:04:05,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:04:05,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:04:06,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:04:06,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:04:06,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752260444] [2022-01-28 13:04:06,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752260444] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:04:06,412 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:04:06,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:04:06,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015874984] [2022-01-28 13:04:06,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:04:06,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:04:06,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:04:06,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:04:06,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:04:06,413 INFO L87 Difference]: Start difference. First operand 5418 states and 14251 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:04:10,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:04:10,455 INFO L93 Difference]: Finished difference Result 6434 states and 16919 transitions. [2022-01-28 13:04:10,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-28 13:04:10,455 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:04:10,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:04:10,467 INFO L225 Difference]: With dead ends: 6434 [2022-01-28 13:04:10,467 INFO L226 Difference]: Without dead ends: 6162 [2022-01-28 13:04:10,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=969, Invalid=3063, Unknown=0, NotChecked=0, Total=4032 [2022-01-28 13:04:10,468 INFO L933 BasicCegarLoop]: 501 mSDtfsCounter, 977 mSDsluCounter, 8493 mSDsCounter, 0 mSdLazyCounter, 1887 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 8838 SdHoareTripleChecker+Invalid, 1890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:04:10,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [977 Valid, 8838 Invalid, 1890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1887 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 13:04:10,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6162 states. [2022-01-28 13:04:10,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6162 to 5406. [2022-01-28 13:04:10,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5406 states, 5405 states have (on average 2.632007400555042) internal successors, (14226), 5405 states have internal predecessors, (14226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:04:10,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5406 states to 5406 states and 14226 transitions. [2022-01-28 13:04:10,557 INFO L78 Accepts]: Start accepts. Automaton has 5406 states and 14226 transitions. Word has length 137 [2022-01-28 13:04:10,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:04:10,557 INFO L470 AbstractCegarLoop]: Abstraction has 5406 states and 14226 transitions. [2022-01-28 13:04:10,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:04:10,558 INFO L276 IsEmpty]: Start isEmpty. Operand 5406 states and 14226 transitions. [2022-01-28 13:04:10,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:04:10,564 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:04:10,565 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:04:10,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-01-28 13:04:10,565 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:04:10,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:04:10,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1936839657, now seen corresponding path program 88 times [2022-01-28 13:04:10,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:04:10,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398140085] [2022-01-28 13:04:10,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:04:10,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:04:10,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:04:11,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:04:11,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:04:11,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398140085] [2022-01-28 13:04:11,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398140085] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:04:11,064 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:04:11,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:04:11,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103488558] [2022-01-28 13:04:11,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:04:11,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:04:11,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:04:11,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:04:11,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:04:11,065 INFO L87 Difference]: Start difference. First operand 5406 states and 14226 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:04:19,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:04:19,865 INFO L93 Difference]: Finished difference Result 6563 states and 17268 transitions. [2022-01-28 13:04:19,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-28 13:04:19,865 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:04:19,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:04:19,874 INFO L225 Difference]: With dead ends: 6563 [2022-01-28 13:04:19,874 INFO L226 Difference]: Without dead ends: 6278 [2022-01-28 13:04:19,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 821 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=1388, Invalid=3868, Unknown=0, NotChecked=0, Total=5256 [2022-01-28 13:04:19,875 INFO L933 BasicCegarLoop]: 502 mSDtfsCounter, 1033 mSDsluCounter, 8385 mSDsCounter, 0 mSdLazyCounter, 1843 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1033 SdHoareTripleChecker+Valid, 8729 SdHoareTripleChecker+Invalid, 1846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:04:19,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1033 Valid, 8729 Invalid, 1846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1843 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 13:04:19,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6278 states. [2022-01-28 13:04:19,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6278 to 5414. [2022-01-28 13:04:19,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5414 states, 5413 states have (on average 2.631442822833918) internal successors, (14244), 5413 states have internal predecessors, (14244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:04:19,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5414 states to 5414 states and 14244 transitions. [2022-01-28 13:04:19,961 INFO L78 Accepts]: Start accepts. Automaton has 5414 states and 14244 transitions. Word has length 137 [2022-01-28 13:04:19,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:04:19,961 INFO L470 AbstractCegarLoop]: Abstraction has 5414 states and 14244 transitions. [2022-01-28 13:04:19,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:04:19,961 INFO L276 IsEmpty]: Start isEmpty. Operand 5414 states and 14244 transitions. [2022-01-28 13:04:19,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:04:19,967 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:04:19,967 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:04:19,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-01-28 13:04:19,967 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:04:19,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:04:19,968 INFO L85 PathProgramCache]: Analyzing trace with hash -692877563, now seen corresponding path program 89 times [2022-01-28 13:04:19,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:04:19,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892632294] [2022-01-28 13:04:19,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:04:19,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:04:19,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:04:20,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:04:20,469 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:04:20,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892632294] [2022-01-28 13:04:20,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892632294] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:04:20,470 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:04:20,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:04:20,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56161423] [2022-01-28 13:04:20,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:04:20,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:04:20,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:04:20,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:04:20,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:04:20,470 INFO L87 Difference]: Start difference. First operand 5414 states and 14244 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:04:27,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:04:27,598 INFO L93 Difference]: Finished difference Result 6511 states and 17133 transitions. [2022-01-28 13:04:27,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-28 13:04:27,599 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:04:27,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:04:27,608 INFO L225 Difference]: With dead ends: 6511 [2022-01-28 13:04:27,609 INFO L226 Difference]: Without dead ends: 6254 [2022-01-28 13:04:27,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=1094, Invalid=3196, Unknown=0, NotChecked=0, Total=4290 [2022-01-28 13:04:27,609 INFO L933 BasicCegarLoop]: 502 mSDtfsCounter, 952 mSDsluCounter, 8217 mSDsCounter, 0 mSdLazyCounter, 1833 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 952 SdHoareTripleChecker+Valid, 8576 SdHoareTripleChecker+Invalid, 1836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:04:27,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [952 Valid, 8576 Invalid, 1836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1833 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 13:04:27,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6254 states. [2022-01-28 13:04:27,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6254 to 5418. [2022-01-28 13:04:27,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5417 states have (on average 2.6307919512645377) internal successors, (14251), 5417 states have internal predecessors, (14251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:04:27,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 14251 transitions. [2022-01-28 13:04:27,702 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 14251 transitions. Word has length 137 [2022-01-28 13:04:27,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:04:27,702 INFO L470 AbstractCegarLoop]: Abstraction has 5418 states and 14251 transitions. [2022-01-28 13:04:27,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:04:27,702 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 14251 transitions. [2022-01-28 13:04:27,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:04:27,708 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:04:27,708 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:04:27,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-01-28 13:04:27,709 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:04:27,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:04:27,709 INFO L85 PathProgramCache]: Analyzing trace with hash 799943871, now seen corresponding path program 90 times [2022-01-28 13:04:27,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:04:27,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869906128] [2022-01-28 13:04:27,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:04:27,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:04:27,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:04:28,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:04:28,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:04:28,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869906128] [2022-01-28 13:04:28,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869906128] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:04:28,203 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:04:28,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:04:28,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565876835] [2022-01-28 13:04:28,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:04:28,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:04:28,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:04:28,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:04:28,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:04:28,203 INFO L87 Difference]: Start difference. First operand 5418 states and 14251 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:04:32,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:04:32,389 INFO L93 Difference]: Finished difference Result 6482 states and 17051 transitions. [2022-01-28 13:04:32,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-28 13:04:32,390 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:04:32,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:04:32,399 INFO L225 Difference]: With dead ends: 6482 [2022-01-28 13:04:32,399 INFO L226 Difference]: Without dead ends: 6214 [2022-01-28 13:04:32,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 560 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1006, Invalid=3154, Unknown=0, NotChecked=0, Total=4160 [2022-01-28 13:04:32,400 INFO L933 BasicCegarLoop]: 504 mSDtfsCounter, 948 mSDsluCounter, 8624 mSDsCounter, 0 mSdLazyCounter, 1931 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 948 SdHoareTripleChecker+Valid, 8969 SdHoareTripleChecker+Invalid, 1934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:04:32,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [948 Valid, 8969 Invalid, 1934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1931 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 13:04:32,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6214 states. [2022-01-28 13:04:32,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6214 to 5410. [2022-01-28 13:04:32,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5410 states, 5409 states have (on average 2.6313551488260307) internal successors, (14233), 5409 states have internal predecessors, (14233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:04:32,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5410 states to 5410 states and 14233 transitions. [2022-01-28 13:04:32,466 INFO L78 Accepts]: Start accepts. Automaton has 5410 states and 14233 transitions. Word has length 137 [2022-01-28 13:04:32,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:04:32,466 INFO L470 AbstractCegarLoop]: Abstraction has 5410 states and 14233 transitions. [2022-01-28 13:04:32,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:04:32,467 INFO L276 IsEmpty]: Start isEmpty. Operand 5410 states and 14233 transitions. [2022-01-28 13:04:32,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:04:32,471 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:04:32,472 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:04:32,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-01-28 13:04:32,472 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:04:32,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:04:32,472 INFO L85 PathProgramCache]: Analyzing trace with hash -192374699, now seen corresponding path program 91 times [2022-01-28 13:04:32,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:04:32,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364248229] [2022-01-28 13:04:32,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:04:32,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:04:32,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:04:32,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:04:32,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:04:32,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364248229] [2022-01-28 13:04:32,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364248229] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:04:32,982 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:04:32,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:04:32,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914754571] [2022-01-28 13:04:32,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:04:32,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:04:32,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:04:32,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:04:32,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:04:32,983 INFO L87 Difference]: Start difference. First operand 5410 states and 14233 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:04:37,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:04:37,684 INFO L93 Difference]: Finished difference Result 6566 states and 17261 transitions. [2022-01-28 13:04:37,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-28 13:04:37,684 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:04:37,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:04:37,692 INFO L225 Difference]: With dead ends: 6566 [2022-01-28 13:04:37,692 INFO L226 Difference]: Without dead ends: 6275 [2022-01-28 13:04:37,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 849 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1252, Invalid=3860, Unknown=0, NotChecked=0, Total=5112 [2022-01-28 13:04:37,693 INFO L933 BasicCegarLoop]: 509 mSDtfsCounter, 1034 mSDsluCounter, 8281 mSDsCounter, 0 mSdLazyCounter, 1843 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1034 SdHoareTripleChecker+Valid, 8628 SdHoareTripleChecker+Invalid, 1846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:04:37,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1034 Valid, 8628 Invalid, 1846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1843 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 13:04:37,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6275 states. [2022-01-28 13:04:37,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6275 to 5414. [2022-01-28 13:04:37,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5414 states, 5413 states have (on average 2.6307038610751894) internal successors, (14240), 5413 states have internal predecessors, (14240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:04:37,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5414 states to 5414 states and 14240 transitions. [2022-01-28 13:04:37,771 INFO L78 Accepts]: Start accepts. Automaton has 5414 states and 14240 transitions. Word has length 137 [2022-01-28 13:04:37,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:04:37,771 INFO L470 AbstractCegarLoop]: Abstraction has 5414 states and 14240 transitions. [2022-01-28 13:04:37,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:04:37,772 INFO L276 IsEmpty]: Start isEmpty. Operand 5414 states and 14240 transitions. [2022-01-28 13:04:37,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:04:37,777 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:04:37,777 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:04:37,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-01-28 13:04:37,777 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:04:37,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:04:37,778 INFO L85 PathProgramCache]: Analyzing trace with hash -610556353, now seen corresponding path program 92 times [2022-01-28 13:04:37,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:04:37,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29239106] [2022-01-28 13:04:37,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:04:37,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:04:37,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:04:38,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:04:38,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:04:38,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29239106] [2022-01-28 13:04:38,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29239106] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:04:38,278 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:04:38,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:04:38,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694582638] [2022-01-28 13:04:38,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:04:38,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:04:38,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:04:38,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:04:38,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:04:38,279 INFO L87 Difference]: Start difference. First operand 5414 states and 14240 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:04:45,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:04:45,187 INFO L93 Difference]: Finished difference Result 6475 states and 17030 transitions. [2022-01-28 13:04:45,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-28 13:04:45,188 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:04:45,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:04:45,195 INFO L225 Difference]: With dead ends: 6475 [2022-01-28 13:04:45,195 INFO L226 Difference]: Without dead ends: 6218 [2022-01-28 13:04:45,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 570 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=1055, Invalid=3105, Unknown=0, NotChecked=0, Total=4160 [2022-01-28 13:04:45,196 INFO L933 BasicCegarLoop]: 502 mSDtfsCounter, 941 mSDsluCounter, 8774 mSDsCounter, 0 mSdLazyCounter, 1954 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 9117 SdHoareTripleChecker+Invalid, 1957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:04:45,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [941 Valid, 9117 Invalid, 1957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1954 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 13:04:45,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6218 states. [2022-01-28 13:04:45,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6218 to 5418. [2022-01-28 13:04:45,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5417 states have (on average 2.630053535167067) internal successors, (14247), 5417 states have internal predecessors, (14247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:04:45,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 14247 transitions. [2022-01-28 13:04:45,267 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 14247 transitions. Word has length 137 [2022-01-28 13:04:45,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:04:45,267 INFO L470 AbstractCegarLoop]: Abstraction has 5418 states and 14247 transitions. [2022-01-28 13:04:45,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:04:45,268 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 14247 transitions. [2022-01-28 13:04:45,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:04:45,273 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:04:45,274 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:04:45,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-01-28 13:04:45,274 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:04:45,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:04:45,274 INFO L85 PathProgramCache]: Analyzing trace with hash 882265081, now seen corresponding path program 93 times [2022-01-28 13:04:45,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:04:45,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749156245] [2022-01-28 13:04:45,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:04:45,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:04:45,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:04:45,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:04:45,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:04:45,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749156245] [2022-01-28 13:04:45,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749156245] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:04:45,834 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:04:45,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:04:45,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575525750] [2022-01-28 13:04:45,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:04:45,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:04:45,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:04:45,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:04:45,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:04:45,835 INFO L87 Difference]: Start difference. First operand 5418 states and 14247 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:04:49,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:04:49,211 INFO L93 Difference]: Finished difference Result 6434 states and 16915 transitions. [2022-01-28 13:04:49,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-28 13:04:49,212 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:04:49,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:04:49,219 INFO L225 Difference]: With dead ends: 6434 [2022-01-28 13:04:49,219 INFO L226 Difference]: Without dead ends: 6158 [2022-01-28 13:04:49,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1047, Invalid=3243, Unknown=0, NotChecked=0, Total=4290 [2022-01-28 13:04:49,220 INFO L933 BasicCegarLoop]: 502 mSDtfsCounter, 1017 mSDsluCounter, 7761 mSDsCounter, 0 mSdLazyCounter, 1771 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1017 SdHoareTripleChecker+Valid, 8124 SdHoareTripleChecker+Invalid, 1774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-28 13:04:49,220 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1017 Valid, 8124 Invalid, 1774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1771 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-28 13:04:49,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6158 states. [2022-01-28 13:04:49,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6158 to 5402. [2022-01-28 13:04:49,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5402 states, 5401 states have (on average 2.631920014812072) internal successors, (14215), 5401 states have internal predecessors, (14215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:04:49,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5402 states to 5402 states and 14215 transitions. [2022-01-28 13:04:49,284 INFO L78 Accepts]: Start accepts. Automaton has 5402 states and 14215 transitions. Word has length 137 [2022-01-28 13:04:49,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:04:49,284 INFO L470 AbstractCegarLoop]: Abstraction has 5402 states and 14215 transitions. [2022-01-28 13:04:49,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:04:49,284 INFO L276 IsEmpty]: Start isEmpty. Operand 5402 states and 14215 transitions. [2022-01-28 13:04:49,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:04:49,290 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:04:49,290 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] [2022-01-28 13:04:49,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-01-28 13:04:49,290 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:04:49,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:04:49,290 INFO L85 PathProgramCache]: Analyzing trace with hash 274343417, now seen corresponding path program 94 times [2022-01-28 13:04:49,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:04:49,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933721193] [2022-01-28 13:04:49,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:04:49,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:04:49,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:04:49,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:04:49,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:04:49,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933721193] [2022-01-28 13:04:49,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933721193] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:04:49,781 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:04:49,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:04:49,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022487792] [2022-01-28 13:04:49,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:04:49,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:04:49,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:04:49,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:04:49,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:04:49,782 INFO L87 Difference]: Start difference. First operand 5402 states and 14215 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:04:55,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:04:55,399 INFO L93 Difference]: Finished difference Result 6683 states and 17568 transitions. [2022-01-28 13:04:55,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-01-28 13:04:55,399 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:04:55,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:04:55,407 INFO L225 Difference]: With dead ends: 6683 [2022-01-28 13:04:55,407 INFO L226 Difference]: Without dead ends: 6361 [2022-01-28 13:04:55,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1118 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=1561, Invalid=4759, Unknown=0, NotChecked=0, Total=6320 [2022-01-28 13:04:55,408 INFO L933 BasicCegarLoop]: 516 mSDtfsCounter, 1171 mSDsluCounter, 8946 mSDsCounter, 0 mSdLazyCounter, 1977 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1171 SdHoareTripleChecker+Valid, 9268 SdHoareTripleChecker+Invalid, 1980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:04:55,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1171 Valid, 9268 Invalid, 1980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1977 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 13:04:55,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6361 states. [2022-01-28 13:04:55,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6361 to 5410. [2022-01-28 13:04:55,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5410 states, 5409 states have (on average 2.6313551488260307) internal successors, (14233), 5409 states have internal predecessors, (14233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:04:55,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5410 states to 5410 states and 14233 transitions. [2022-01-28 13:04:55,474 INFO L78 Accepts]: Start accepts. Automaton has 5410 states and 14233 transitions. Word has length 137 [2022-01-28 13:04:55,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:04:55,474 INFO L470 AbstractCegarLoop]: Abstraction has 5410 states and 14233 transitions. [2022-01-28 13:04:55,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:04:55,475 INFO L276 IsEmpty]: Start isEmpty. Operand 5410 states and 14233 transitions. [2022-01-28 13:04:55,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:04:55,480 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:04:55,480 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:04:55,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-01-28 13:04:55,481 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:04:55,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:04:55,481 INFO L85 PathProgramCache]: Analyzing trace with hash 569946253, now seen corresponding path program 95 times [2022-01-28 13:04:55,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:04:55,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509856004] [2022-01-28 13:04:55,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:04:55,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:04:55,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:04:55,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:04:55,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:04:55,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509856004] [2022-01-28 13:04:55,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509856004] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:04:55,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:04:55,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:04:55,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313887414] [2022-01-28 13:04:55,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:04:55,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:04:55,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:04:55,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:04:55,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:04:55,971 INFO L87 Difference]: Start difference. First operand 5410 states and 14233 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:05:01,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:05:01,120 INFO L93 Difference]: Finished difference Result 6646 states and 17481 transitions. [2022-01-28 13:05:01,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-28 13:05:01,121 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:05:01,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:05:01,129 INFO L225 Difference]: With dead ends: 6646 [2022-01-28 13:05:01,129 INFO L226 Difference]: Without dead ends: 6355 [2022-01-28 13:05:01,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 867 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=1315, Invalid=4087, Unknown=0, NotChecked=0, Total=5402 [2022-01-28 13:05:01,129 INFO L933 BasicCegarLoop]: 511 mSDtfsCounter, 1110 mSDsluCounter, 8618 mSDsCounter, 0 mSdLazyCounter, 1922 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 8956 SdHoareTripleChecker+Invalid, 1925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:05:01,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1110 Valid, 8956 Invalid, 1925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1922 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 13:05:01,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6355 states. [2022-01-28 13:05:01,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6355 to 5414. [2022-01-28 13:05:01,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5414 states, 5413 states have (on average 2.6307038610751894) internal successors, (14240), 5413 states have internal predecessors, (14240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:05:01,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5414 states to 5414 states and 14240 transitions. [2022-01-28 13:05:01,201 INFO L78 Accepts]: Start accepts. Automaton has 5414 states and 14240 transitions. Word has length 137 [2022-01-28 13:05:01,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:05:01,201 INFO L470 AbstractCegarLoop]: Abstraction has 5414 states and 14240 transitions. [2022-01-28 13:05:01,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:05:01,201 INFO L276 IsEmpty]: Start isEmpty. Operand 5414 states and 14240 transitions. [2022-01-28 13:05:01,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:05:01,207 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:05:01,207 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:05:01,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-01-28 13:05:01,207 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:05:01,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:05:01,207 INFO L85 PathProgramCache]: Analyzing trace with hash 151764599, now seen corresponding path program 96 times [2022-01-28 13:05:01,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:05:01,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331577881] [2022-01-28 13:05:01,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:05:01,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:05:01,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:05:01,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:05:01,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:05:01,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331577881] [2022-01-28 13:05:01,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331577881] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:05:01,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:05:01,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:05:01,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981917397] [2022-01-28 13:05:01,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:05:01,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:05:01,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:05:01,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:05:01,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:05:01,706 INFO L87 Difference]: Start difference. First operand 5414 states and 14240 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:05:06,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:05:06,076 INFO L93 Difference]: Finished difference Result 6543 states and 17217 transitions. [2022-01-28 13:05:06,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-28 13:05:06,076 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:05:06,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:05:06,086 INFO L225 Difference]: With dead ends: 6543 [2022-01-28 13:05:06,086 INFO L226 Difference]: Without dead ends: 6286 [2022-01-28 13:05:06,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1021, Invalid=3011, Unknown=0, NotChecked=0, Total=4032 [2022-01-28 13:05:06,087 INFO L933 BasicCegarLoop]: 500 mSDtfsCounter, 981 mSDsluCounter, 8539 mSDsCounter, 0 mSdLazyCounter, 1897 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 981 SdHoareTripleChecker+Valid, 8887 SdHoareTripleChecker+Invalid, 1900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:05:06,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [981 Valid, 8887 Invalid, 1900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1897 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 13:05:06,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6286 states. [2022-01-28 13:05:06,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6286 to 5418. [2022-01-28 13:05:06,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5417 states have (on average 2.630053535167067) internal successors, (14247), 5417 states have internal predecessors, (14247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:05:06,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 14247 transitions. [2022-01-28 13:05:06,166 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 14247 transitions. Word has length 137 [2022-01-28 13:05:06,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:05:06,166 INFO L470 AbstractCegarLoop]: Abstraction has 5418 states and 14247 transitions. [2022-01-28 13:05:06,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:05:06,166 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 14247 transitions. [2022-01-28 13:05:06,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:05:06,172 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:05:06,172 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:05:06,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-01-28 13:05:06,172 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:05:06,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:05:06,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1644586033, now seen corresponding path program 97 times [2022-01-28 13:05:06,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:05:06,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823551415] [2022-01-28 13:05:06,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:05:06,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:05:06,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:05:06,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:05:06,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:05:06,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823551415] [2022-01-28 13:05:06,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823551415] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:05:06,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:05:06,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:05:06,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044121411] [2022-01-28 13:05:06,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:05:06,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:05:06,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:05:06,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:05:06,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:05:06,649 INFO L87 Difference]: Start difference. First operand 5418 states and 14247 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:05:10,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:05:10,638 INFO L93 Difference]: Finished difference Result 6514 states and 17135 transitions. [2022-01-28 13:05:10,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-28 13:05:10,639 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:05:10,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:05:10,649 INFO L225 Difference]: With dead ends: 6514 [2022-01-28 13:05:10,649 INFO L226 Difference]: Without dead ends: 6242 [2022-01-28 13:05:10,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 583 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1034, Invalid=3256, Unknown=0, NotChecked=0, Total=4290 [2022-01-28 13:05:10,650 INFO L933 BasicCegarLoop]: 505 mSDtfsCounter, 1051 mSDsluCounter, 8452 mSDsCounter, 0 mSdLazyCounter, 1895 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 8803 SdHoareTripleChecker+Invalid, 1898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:05:10,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1051 Valid, 8803 Invalid, 1898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1895 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 13:05:10,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6242 states. [2022-01-28 13:05:10,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6242 to 5406. [2022-01-28 13:05:10,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5406 states, 5405 states have (on average 2.631267345050879) internal successors, (14222), 5405 states have internal predecessors, (14222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:05:10,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5406 states to 5406 states and 14222 transitions. [2022-01-28 13:05:10,737 INFO L78 Accepts]: Start accepts. Automaton has 5406 states and 14222 transitions. Word has length 137 [2022-01-28 13:05:10,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:05:10,738 INFO L470 AbstractCegarLoop]: Abstraction has 5406 states and 14222 transitions. [2022-01-28 13:05:10,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:05:10,738 INFO L276 IsEmpty]: Start isEmpty. Operand 5406 states and 14222 transitions. [2022-01-28 13:05:10,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:05:10,744 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:05:10,744 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:05:10,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-01-28 13:05:10,744 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:05:10,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:05:10,744 INFO L85 PathProgramCache]: Analyzing trace with hash -135568175, now seen corresponding path program 98 times [2022-01-28 13:05:10,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:05:10,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974085073] [2022-01-28 13:05:10,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:05:10,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:05:10,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:05:11,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:05:11,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:05:11,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974085073] [2022-01-28 13:05:11,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974085073] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:05:11,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:05:11,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:05:11,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61709885] [2022-01-28 13:05:11,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:05:11,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:05:11,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:05:11,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:05:11,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:05:11,266 INFO L87 Difference]: Start difference. First operand 5406 states and 14222 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:05:16,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:05:16,866 INFO L93 Difference]: Finished difference Result 6563 states and 17264 transitions. [2022-01-28 13:05:16,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-28 13:05:16,866 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-28 13:05:16,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:05:16,874 INFO L225 Difference]: With dead ends: 6563 [2022-01-28 13:05:16,874 INFO L226 Difference]: Without dead ends: 6278 [2022-01-28 13:05:16,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 735 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=1354, Invalid=3758, Unknown=0, NotChecked=0, Total=5112 [2022-01-28 13:05:16,875 INFO L933 BasicCegarLoop]: 502 mSDtfsCounter, 1001 mSDsluCounter, 8708 mSDsCounter, 0 mSdLazyCounter, 1897 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1001 SdHoareTripleChecker+Valid, 9043 SdHoareTripleChecker+Invalid, 1900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:05:16,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1001 Valid, 9043 Invalid, 1900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1897 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-28 13:05:16,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6278 states. [2022-01-28 13:05:16,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6278 to 5414. [2022-01-28 13:05:16,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5414 states, 5413 states have (on average 2.6307038610751894) internal successors, (14240), 5413 states have internal predecessors, (14240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:05:16,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5414 states to 5414 states and 14240 transitions. [2022-01-28 13:05:16,940 INFO L78 Accepts]: Start accepts. Automaton has 5414 states and 14240 transitions. Word has length 137 [2022-01-28 13:05:16,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:05:16,941 INFO L470 AbstractCegarLoop]: Abstraction has 5414 states and 14240 transitions. [2022-01-28 13:05:16,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:05:16,941 INFO L276 IsEmpty]: Start isEmpty. Operand 5414 states and 14240 transitions. [2022-01-28 13:05:16,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-28 13:05:16,946 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:05:16,946 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:05:16,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-01-28 13:05:16,946 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 13:05:16,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:05:16,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1108393919, now seen corresponding path program 99 times [2022-01-28 13:05:16,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:05:16,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645749909] [2022-01-28 13:05:16,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:05:16,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:05:16,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:05:17,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:05:17,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:05:17,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645749909] [2022-01-28 13:05:17,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645749909] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:05:17,454 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:05:17,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-28 13:05:17,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869061603] [2022-01-28 13:05:17,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:05:17,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-28 13:05:17,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:05:17,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-28 13:05:17,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:05:17,455 INFO L87 Difference]: Start difference. First operand 5414 states and 14240 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 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... [2022-01-28 13:05:18,451 WARN L243 SmtUtils]: Removed 6 from assertion stack [2022-01-28 13:05:18,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-28 13:05:18,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=191, Invalid=1069, Unknown=0, NotChecked=0, Total=1260 [2022-01-28 13:05:18,451 INFO L933 BasicCegarLoop]: 382 mSDtfsCounter, 561 mSDsluCounter, 7329 mSDsCounter, 0 mSdLazyCounter, 1444 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 7586 SdHoareTripleChecker+Invalid, 1447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-28 13:05:18,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [561 Valid, 7586 Invalid, 1447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1444 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-28 13:05:18,452 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-28 13:05:18,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-01-28 13:05:18,453 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (5414states) and FLOYD_HOARE automaton (currently 14 states, 28 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 64 for 35ms.. [2022-01-28 13:05:18,454 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-28 13:05:18,454 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-01-28 13:05:18,456 INFO L732 BasicCegarLoop]: Path program histogram: [99, 35, 35, 3, 2, 1, 1, 1] [2022-01-28 13:05:18,457 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-28 13:05:18,457 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-28 13:05:18,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 01:05:18 BasicIcfg [2022-01-28 13:05:18,459 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-28 13:05:18,459 INFO L158 Benchmark]: Toolchain (without parser) took 721085.83ms. Allocated memory was 194.0MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 144.5MB in the beginning and 506.0MB in the end (delta: -361.6MB). Peak memory consumption was 934.2MB. Max. memory is 8.0GB. [2022-01-28 13:05:18,459 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 194.0MB. Free memory is still 161.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-28 13:05:18,459 INFO L158 Benchmark]: CACSL2BoogieTranslator took 193.38ms. Allocated memory is still 194.0MB. Free memory was 144.3MB in the beginning and 170.2MB in the end (delta: -25.9MB). Peak memory consumption was 11.2MB. Max. memory is 8.0GB. [2022-01-28 13:05:18,459 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.94ms. Allocated memory is still 194.0MB. Free memory was 170.2MB in the beginning and 168.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-28 13:05:18,459 INFO L158 Benchmark]: Boogie Preprocessor took 26.11ms. Allocated memory is still 194.0MB. Free memory was 168.1MB in the beginning and 166.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-28 13:05:18,459 INFO L158 Benchmark]: RCFGBuilder took 356.12ms. Allocated memory is still 194.0MB. Free memory was 166.3MB in the beginning and 151.3MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-01-28 13:05:18,459 INFO L158 Benchmark]: TraceAbstraction took 720469.04ms. Allocated memory was 194.0MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 150.8MB in the beginning and 506.0MB in the end (delta: -355.2MB). Peak memory consumption was 940.8MB. Max. memory is 8.0GB. [2022-01-28 13:05:18,459 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 194.0MB. Free memory is still 161.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 193.38ms. Allocated memory is still 194.0MB. Free memory was 144.3MB in the beginning and 170.2MB in the end (delta: -25.9MB). Peak memory consumption was 11.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 36.94ms. Allocated memory is still 194.0MB. Free memory was 170.2MB in the beginning and 168.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.11ms. Allocated memory is still 194.0MB. Free memory was 168.1MB in the beginning and 166.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 356.12ms. Allocated memory is still 194.0MB. Free memory was 166.3MB in the beginning and 151.3MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 720469.04ms. Allocated memory was 194.0MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 150.8MB in the beginning and 506.0MB in the end (delta: -355.2MB). Peak memory consumption was 940.8MB. 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: 72]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (5414states) and FLOYD_HOARE automaton (currently 14 states, 28 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 64 for 35ms.. - TimeoutResultAtElement [Line: 64]: 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 (5414states) and FLOYD_HOARE automaton (currently 14 states, 28 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 64 for 35ms.. - TimeoutResultAtElement [Line: 65]: 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 (5414states) and FLOYD_HOARE automaton (currently 14 states, 28 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 64 for 35ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 246 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 720.4s, OverallIterations: 177, TraceHistogramMax: 1, PathProgramHistogramMax: 99, EmptinessCheckTime: 1.5s, AutomataDifference: 644.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 128333 SdHoareTripleChecker+Valid, 86.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 128333 mSDsluCounter, 1056915 SdHoareTripleChecker+Invalid, 73.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1005796 mSDsCounter, 376 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 205177 IncrementalHoareTripleChecker+Invalid, 205553 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 376 mSolverCounterUnsat, 72433 mSDtfsCounter, 205177 mSolverCounterSat, 1.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10236 GetRequests, 1008 SyntacticMatches, 1 SemanticMatches, 9226 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119663 ImplicationChecksByTransitivity, 577.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7151occurred in iteration=0, InterpolantAutomatonStates: 7039, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 16.7s AutomataMinimizationTime, 176 MinimizatonAttempts, 157412 StatesRemovedByMinimization, 175 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 54.6s InterpolantComputationTime, 20675 NumberOfCodeBlocks, 20675 NumberOfCodeBlocksAsserted, 177 NumberOfCheckSat, 20498 ConstructedInterpolants, 0 QuantifiedInterpolants, 215470 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 177 InterpolantComputations, 177 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 Completed graceful shutdown