/usr/bin/java -Xmx16000000000 -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-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-sre-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 11:22:42,620 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 11:22:42,621 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 11:22:42,669 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 11:22:42,669 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 11:22:42,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 11:22:42,671 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 11:22:42,672 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 11:22:42,674 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 11:22:42,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 11:22:42,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 11:22:42,697 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 11:22:42,697 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 11:22:42,698 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 11:22:42,699 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 11:22:42,700 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 11:22:42,700 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 11:22:42,701 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 11:22:42,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 11:22:42,704 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 11:22:42,705 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 11:22:42,706 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 11:22:42,706 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 11:22:42,707 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 11:22:42,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 11:22:42,715 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 11:22:42,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 11:22:42,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 11:22:42,717 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-Separate.epf [2022-01-18 11:22:42,734 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 11:22:42,734 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 11:22:42,734 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 11:22:42,734 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 11:22:42,735 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 11:22:42,735 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 11:22:42,736 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 11:22:42,736 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 11:22:42,736 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 11:22:42,736 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 11:22:42,737 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 11:22:42,737 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 11:22:42,737 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 11:22:42,737 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 11:22:42,737 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 11:22:42,737 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 11:22:42,738 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 11:22:42,738 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 11:22:42,738 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 11:22:42,738 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 11:22:42,738 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 11:22:42,739 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 11:22:42,739 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 11:22:42,739 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 11:22:42,739 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 11:22:42,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 11:22:42,740 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 11:22:42,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 11:22:42,740 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 11:22:42,740 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 11:22:42,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 11:22:42,741 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 11:22:42,741 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 11:22:42,741 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 11:22:42,741 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 11:22:42,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 11:22:42,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 11:22:42,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 11:22:42,933 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 11:22:42,939 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 11:22:42,940 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-sre-symm.wvr.c [2022-01-18 11:22:42,992 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00b225f7e/dc7ea07ab6f0438d822947c97324370a/FLAG5dda7d2fc [2022-01-18 11:22:43,368 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 11:22:43,369 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-symm.wvr.c [2022-01-18 11:22:43,374 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00b225f7e/dc7ea07ab6f0438d822947c97324370a/FLAG5dda7d2fc [2022-01-18 11:22:43,385 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00b225f7e/dc7ea07ab6f0438d822947c97324370a [2022-01-18 11:22:43,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 11:22:43,389 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 11:22:43,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 11:22:43,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 11:22:43,398 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 11:22:43,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 11:22:43" (1/1) ... [2022-01-18 11:22:43,399 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e2d9d2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:22:43, skipping insertion in model container [2022-01-18 11:22:43,399 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 11:22:43" (1/1) ... [2022-01-18 11:22:43,403 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 11:22:43,414 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 11:22:43,571 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-sre-symm.wvr.c[2133,2146] [2022-01-18 11:22:43,573 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 11:22:43,578 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 11:22:43,594 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-sre-symm.wvr.c[2133,2146] [2022-01-18 11:22:43,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 11:22:43,603 INFO L208 MainTranslator]: Completed translation [2022-01-18 11:22:43,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:22:43 WrapperNode [2022-01-18 11:22:43,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 11:22:43,605 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 11:22:43,605 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 11:22:43,605 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 11:22:43,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:22:43" (1/1) ... [2022-01-18 11:22:43,616 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:22:43" (1/1) ... [2022-01-18 11:22:43,630 INFO L137 Inliner]: procedures = 21, calls = 21, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2022-01-18 11:22:43,630 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 11:22:43,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 11:22:43,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 11:22:43,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 11:22:43,637 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:22:43" (1/1) ... [2022-01-18 11:22:43,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:22:43" (1/1) ... [2022-01-18 11:22:43,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:22:43" (1/1) ... [2022-01-18 11:22:43,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:22:43" (1/1) ... [2022-01-18 11:22:43,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:22:43" (1/1) ... [2022-01-18 11:22:43,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:22:43" (1/1) ... [2022-01-18 11:22:43,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:22:43" (1/1) ... [2022-01-18 11:22:43,648 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 11:22:43,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 11:22:43,649 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 11:22:43,649 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 11:22:43,650 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:22:43" (1/1) ... [2022-01-18 11:22:43,656 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 11:22:43,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:22:43,684 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) [2022-01-18 11:22:43,700 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 [2022-01-18 11:22:43,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 11:22:43,725 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 11:22:43,725 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 11:22:43,726 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 11:22:43,726 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 11:22:43,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 11:22:43,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 11:22:43,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 11:22:43,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 11:22:43,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 11:22:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 11:22:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 11:22:43,732 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 11:22:43,790 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 11:22:43,791 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 11:22:43,969 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 11:22:43,976 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 11:22:43,976 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 11:22:43,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 11:22:43 BoogieIcfgContainer [2022-01-18 11:22:43,978 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 11:22:43,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 11:22:43,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 11:22:43,982 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 11:22:43,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 11:22:43" (1/3) ... [2022-01-18 11:22:43,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7139d40e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 11:22:43, skipping insertion in model container [2022-01-18 11:22:43,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:22:43" (2/3) ... [2022-01-18 11:22:43,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7139d40e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 11:22:43, skipping insertion in model container [2022-01-18 11:22:43,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 11:22:43" (3/3) ... [2022-01-18 11:22:43,985 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-sre-symm.wvr.c [2022-01-18 11:22:43,989 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 11:22:43,989 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 11:22:43,989 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 11:22:43,989 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 11:22:44,053 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,053 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,054 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,054 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,054 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,054 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,054 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,055 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,055 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,055 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,055 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,055 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,055 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,056 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,056 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,056 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,056 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,056 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,056 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,056 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,058 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,058 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,058 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,059 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,059 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,059 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,059 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,059 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,059 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,060 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,060 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,060 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,060 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,060 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,060 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,061 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,061 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,061 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,061 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,061 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,064 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,064 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,064 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,065 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,066 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,067 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,067 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,073 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:22:44,085 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-18 11:22:44,126 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 11:22:44,131 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 [2022-01-18 11:22:44,131 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-18 11:22:44,141 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 102 places, 102 transitions, 220 flow [2022-01-18 11:22:44,225 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 734 states, 733 states have (on average 2.671214188267394) internal successors, (1958), 733 states have internal predecessors, (1958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:44,229 INFO L276 IsEmpty]: Start isEmpty. Operand has 734 states, 733 states have (on average 2.671214188267394) internal successors, (1958), 733 states have internal predecessors, (1958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:44,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-01-18 11:22:44,246 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:44,247 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:44,247 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:44,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:44,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1564991262, now seen corresponding path program 1 times [2022-01-18 11:22:44,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:44,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748082326] [2022-01-18 11:22:44,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:44,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:44,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:44,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:44,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:44,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748082326] [2022-01-18 11:22:44,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748082326] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:44,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:44,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 11:22:44,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019105763] [2022-01-18 11:22:44,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:44,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 11:22:44,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:44,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 11:22:44,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-18 11:22:44,626 INFO L87 Difference]: Start difference. First operand has 734 states, 733 states have (on average 2.671214188267394) internal successors, (1958), 733 states have internal predecessors, (1958), 0 states have call successors, (0), 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 9.125) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:44,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:44,855 INFO L93 Difference]: Finished difference Result 1469 states and 3772 transitions. [2022-01-18 11:22:44,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 11:22:44,857 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-01-18 11:22:44,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:44,885 INFO L225 Difference]: With dead ends: 1469 [2022-01-18 11:22:44,885 INFO L226 Difference]: Without dead ends: 1225 [2022-01-18 11:22:44,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2022-01-18 11:22:44,889 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 206 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 613 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 [2022-01-18 11:22:44,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 613 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:44,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1225 states. [2022-01-18 11:22:44,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1225 to 814. [2022-01-18 11:22:44,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814 states, 813 states have (on average 2.6186961869618695) internal successors, (2129), 813 states have internal predecessors, (2129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:44,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 2129 transitions. [2022-01-18 11:22:44,998 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 2129 transitions. Word has length 73 [2022-01-18 11:22:44,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:44,999 INFO L470 AbstractCegarLoop]: Abstraction has 814 states and 2129 transitions. [2022-01-18 11:22:44,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:44,999 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 2129 transitions. [2022-01-18 11:22:45,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-18 11:22:45,003 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:45,004 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:45,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 11:22:45,004 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:45,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:45,005 INFO L85 PathProgramCache]: Analyzing trace with hash 298673121, now seen corresponding path program 1 times [2022-01-18 11:22:45,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:45,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546308786] [2022-01-18 11:22:45,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:45,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:45,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:45,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:45,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:45,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546308786] [2022-01-18 11:22:45,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546308786] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:45,143 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:45,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 11:22:45,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602359223] [2022-01-18 11:22:45,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:45,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 11:22:45,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:45,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 11:22:45,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 11:22:45,146 INFO L87 Difference]: Start difference. First operand 814 states and 2129 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:45,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:45,191 INFO L93 Difference]: Finished difference Result 1201 states and 3043 transitions. [2022-01-18 11:22:45,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 11:22:45,192 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-01-18 11:22:45,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:45,199 INFO L225 Difference]: With dead ends: 1201 [2022-01-18 11:22:45,199 INFO L226 Difference]: Without dead ends: 1100 [2022-01-18 11:22:45,203 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 11:22:45,205 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 45 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:45,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 162 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:22:45,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2022-01-18 11:22:45,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 713. [2022-01-18 11:22:45,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 713 states, 712 states have (on average 2.6474719101123596) internal successors, (1885), 712 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:45,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 1885 transitions. [2022-01-18 11:22:45,233 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 1885 transitions. Word has length 75 [2022-01-18 11:22:45,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:45,233 INFO L470 AbstractCegarLoop]: Abstraction has 713 states and 1885 transitions. [2022-01-18 11:22:45,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:45,234 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 1885 transitions. [2022-01-18 11:22:45,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-18 11:22:45,240 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:45,241 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:45,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 11:22:45,241 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:45,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:45,242 INFO L85 PathProgramCache]: Analyzing trace with hash 752097827, now seen corresponding path program 1 times [2022-01-18 11:22:45,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:45,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538875985] [2022-01-18 11:22:45,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:45,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:45,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:45,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:45,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:45,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538875985] [2022-01-18 11:22:45,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538875985] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:45,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:45,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 11:22:45,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401529444] [2022-01-18 11:22:45,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:45,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 11:22:45,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:45,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 11:22:45,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 11:22:45,391 INFO L87 Difference]: Start difference. First operand 713 states and 1885 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:45,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:45,415 INFO L93 Difference]: Finished difference Result 630 states and 1576 transitions. [2022-01-18 11:22:45,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 11:22:45,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-01-18 11:22:45,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:45,419 INFO L225 Difference]: With dead ends: 630 [2022-01-18 11:22:45,419 INFO L226 Difference]: Without dead ends: 630 [2022-01-18 11:22:45,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 11:22:45,425 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 41 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:45,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 110 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:22:45,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2022-01-18 11:22:45,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 630. [2022-01-18 11:22:45,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 629 states have (on average 2.505564387917329) internal successors, (1576), 629 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:45,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 1576 transitions. [2022-01-18 11:22:45,443 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 1576 transitions. Word has length 75 [2022-01-18 11:22:45,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:45,444 INFO L470 AbstractCegarLoop]: Abstraction has 630 states and 1576 transitions. [2022-01-18 11:22:45,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:45,445 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 1576 transitions. [2022-01-18 11:22:45,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:45,448 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:45,448 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:45,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 11:22:45,449 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:45,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:45,450 INFO L85 PathProgramCache]: Analyzing trace with hash 792129958, now seen corresponding path program 1 times [2022-01-18 11:22:45,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:45,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202496412] [2022-01-18 11:22:45,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:45,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:45,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:45,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:45,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:45,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202496412] [2022-01-18 11:22:45,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202496412] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:45,590 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:45,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 11:22:45,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326906127] [2022-01-18 11:22:45,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:45,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 11:22:45,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:45,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 11:22:45,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 11:22:45,594 INFO L87 Difference]: Start difference. First operand 630 states and 1576 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:45,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:45,641 INFO L93 Difference]: Finished difference Result 1388 states and 3383 transitions. [2022-01-18 11:22:45,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 11:22:45,642 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:45,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:45,649 INFO L225 Difference]: With dead ends: 1388 [2022-01-18 11:22:45,650 INFO L226 Difference]: Without dead ends: 1388 [2022-01-18 11:22:45,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 11:22:45,657 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 179 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:45,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 242 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:22:45,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2022-01-18 11:22:45,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 794. [2022-01-18 11:22:45,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 793 states have (on average 2.4779319041614123) internal successors, (1965), 793 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:45,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1965 transitions. [2022-01-18 11:22:45,688 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1965 transitions. Word has length 77 [2022-01-18 11:22:45,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:45,688 INFO L470 AbstractCegarLoop]: Abstraction has 794 states and 1965 transitions. [2022-01-18 11:22:45,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:45,689 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1965 transitions. [2022-01-18 11:22:45,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:45,691 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:45,692 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:45,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 11:22:45,692 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:45,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:45,695 INFO L85 PathProgramCache]: Analyzing trace with hash -751864442, now seen corresponding path program 1 times [2022-01-18 11:22:45,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:45,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644661647] [2022-01-18 11:22:45,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:45,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:45,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:45,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:45,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644661647] [2022-01-18 11:22:45,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644661647] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:45,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:45,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:45,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132723590] [2022-01-18 11:22:45,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:45,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:45,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:45,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:45,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:45,915 INFO L87 Difference]: Start difference. First operand 794 states and 1965 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:46,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:46,252 INFO L93 Difference]: Finished difference Result 1261 states and 3048 transitions. [2022-01-18 11:22:46,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 11:22:46,253 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:46,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:46,258 INFO L225 Difference]: With dead ends: 1261 [2022-01-18 11:22:46,258 INFO L226 Difference]: Without dead ends: 995 [2022-01-18 11:22:46,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:22:46,260 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 179 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:46,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 830 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:46,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2022-01-18 11:22:46,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 726. [2022-01-18 11:22:46,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 725 states have (on average 2.484137931034483) internal successors, (1801), 725 states have internal predecessors, (1801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:46,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 1801 transitions. [2022-01-18 11:22:46,284 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 1801 transitions. Word has length 77 [2022-01-18 11:22:46,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:46,284 INFO L470 AbstractCegarLoop]: Abstraction has 726 states and 1801 transitions. [2022-01-18 11:22:46,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:46,285 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 1801 transitions. [2022-01-18 11:22:46,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:46,287 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:46,287 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] [2022-01-18 11:22:46,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 11:22:46,287 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:46,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:46,288 INFO L85 PathProgramCache]: Analyzing trace with hash -820574426, now seen corresponding path program 2 times [2022-01-18 11:22:46,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:46,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469859272] [2022-01-18 11:22:46,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:46,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:46,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:46,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:46,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:46,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469859272] [2022-01-18 11:22:46,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469859272] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:46,496 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:46,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:46,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838905539] [2022-01-18 11:22:46,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:46,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:46,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:46,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:46,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:46,499 INFO L87 Difference]: Start difference. First operand 726 states and 1801 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:46,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:46,808 INFO L93 Difference]: Finished difference Result 1106 states and 2734 transitions. [2022-01-18 11:22:46,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:22:46,809 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:46,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:46,813 INFO L225 Difference]: With dead ends: 1106 [2022-01-18 11:22:46,813 INFO L226 Difference]: Without dead ends: 939 [2022-01-18 11:22:46,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:22:46,814 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 97 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1111 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:46,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 1111 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:46,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2022-01-18 11:22:46,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 730. [2022-01-18 11:22:46,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 729 states have (on average 2.4801097393689986) internal successors, (1808), 729 states have internal predecessors, (1808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:46,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 1808 transitions. [2022-01-18 11:22:46,833 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 1808 transitions. Word has length 77 [2022-01-18 11:22:46,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:46,834 INFO L470 AbstractCegarLoop]: Abstraction has 730 states and 1808 transitions. [2022-01-18 11:22:46,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:46,834 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 1808 transitions. [2022-01-18 11:22:46,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:46,836 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:46,836 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:46,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 11:22:46,836 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:46,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:46,837 INFO L85 PathProgramCache]: Analyzing trace with hash -433730370, now seen corresponding path program 3 times [2022-01-18 11:22:46,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:46,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771573955] [2022-01-18 11:22:46,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:46,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:46,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:46,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:46,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:46,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771573955] [2022-01-18 11:22:46,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771573955] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:46,959 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:46,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:46,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359042664] [2022-01-18 11:22:46,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:46,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:46,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:46,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:46,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:46,961 INFO L87 Difference]: Start difference. First operand 730 states and 1808 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:47,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:47,185 INFO L93 Difference]: Finished difference Result 1027 states and 2536 transitions. [2022-01-18 11:22:47,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 11:22:47,185 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:47,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:47,190 INFO L225 Difference]: With dead ends: 1027 [2022-01-18 11:22:47,190 INFO L226 Difference]: Without dead ends: 886 [2022-01-18 11:22:47,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:22:47,191 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 71 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 936 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 [2022-01-18 11:22:47,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 936 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:47,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2022-01-18 11:22:47,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 734. [2022-01-18 11:22:47,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 733 states have (on average 2.47612551159618) internal successors, (1815), 733 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:47,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 1815 transitions. [2022-01-18 11:22:47,213 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 1815 transitions. Word has length 77 [2022-01-18 11:22:47,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:47,214 INFO L470 AbstractCegarLoop]: Abstraction has 734 states and 1815 transitions. [2022-01-18 11:22:47,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:47,215 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 1815 transitions. [2022-01-18 11:22:47,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:47,216 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:47,216 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:47,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 11:22:47,217 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:47,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:47,218 INFO L85 PathProgramCache]: Analyzing trace with hash -143760860, now seen corresponding path program 4 times [2022-01-18 11:22:47,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:47,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097023865] [2022-01-18 11:22:47,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:47,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:47,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:47,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:47,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097023865] [2022-01-18 11:22:47,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097023865] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:47,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:47,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:47,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698053149] [2022-01-18 11:22:47,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:47,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:47,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:47,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:47,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:47,350 INFO L87 Difference]: Start difference. First operand 734 states and 1815 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:47,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:47,565 INFO L93 Difference]: Finished difference Result 1006 states and 2476 transitions. [2022-01-18 11:22:47,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:22:47,566 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:47,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:47,570 INFO L225 Difference]: With dead ends: 1006 [2022-01-18 11:22:47,570 INFO L226 Difference]: Without dead ends: 836 [2022-01-18 11:22:47,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:22:47,571 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 71 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:47,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 849 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:47,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2022-01-18 11:22:47,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 708. [2022-01-18 11:22:47,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 707 states have (on average 2.483734087694484) internal successors, (1756), 707 states have internal predecessors, (1756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:47,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 1756 transitions. [2022-01-18 11:22:47,587 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 1756 transitions. Word has length 77 [2022-01-18 11:22:47,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:47,587 INFO L470 AbstractCegarLoop]: Abstraction has 708 states and 1756 transitions. [2022-01-18 11:22:47,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:47,588 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 1756 transitions. [2022-01-18 11:22:47,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:47,589 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:47,589 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:47,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 11:22:47,590 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:47,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:47,590 INFO L85 PathProgramCache]: Analyzing trace with hash 66532486, now seen corresponding path program 5 times [2022-01-18 11:22:47,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:47,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481742118] [2022-01-18 11:22:47,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:47,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:47,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:47,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:47,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:47,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481742118] [2022-01-18 11:22:47,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481742118] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:47,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:47,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:47,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914091980] [2022-01-18 11:22:47,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:47,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:47,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:47,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:47,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:47,736 INFO L87 Difference]: Start difference. First operand 708 states and 1756 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:47,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:47,986 INFO L93 Difference]: Finished difference Result 1089 states and 2703 transitions. [2022-01-18 11:22:47,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:22:47,987 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:47,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:47,991 INFO L225 Difference]: With dead ends: 1089 [2022-01-18 11:22:47,991 INFO L226 Difference]: Without dead ends: 928 [2022-01-18 11:22:47,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:22:47,992 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 97 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:47,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 777 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:47,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2022-01-18 11:22:48,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 716. [2022-01-18 11:22:48,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 2.481118881118881) internal successors, (1774), 715 states have internal predecessors, (1774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:48,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1774 transitions. [2022-01-18 11:22:48,026 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1774 transitions. Word has length 77 [2022-01-18 11:22:48,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:48,027 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 1774 transitions. [2022-01-18 11:22:48,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:48,027 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1774 transitions. [2022-01-18 11:22:48,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:48,029 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:48,029 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:48,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 11:22:48,029 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:48,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:48,030 INFO L85 PathProgramCache]: Analyzing trace with hash 399665220, now seen corresponding path program 6 times [2022-01-18 11:22:48,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:48,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590153291] [2022-01-18 11:22:48,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:48,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:48,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:48,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:48,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:48,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590153291] [2022-01-18 11:22:48,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590153291] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:48,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:48,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:48,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873848333] [2022-01-18 11:22:48,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:48,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:48,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:48,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:48,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:48,136 INFO L87 Difference]: Start difference. First operand 716 states and 1774 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:48,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:48,347 INFO L93 Difference]: Finished difference Result 1061 states and 2634 transitions. [2022-01-18 11:22:48,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:22:48,348 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:48,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:48,352 INFO L225 Difference]: With dead ends: 1061 [2022-01-18 11:22:48,352 INFO L226 Difference]: Without dead ends: 920 [2022-01-18 11:22:48,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:22:48,353 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 79 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 810 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 [2022-01-18 11:22:48,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 810 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:48,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2022-01-18 11:22:48,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 720. [2022-01-18 11:22:48,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 719 states have (on average 2.477051460361613) internal successors, (1781), 719 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:48,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1781 transitions. [2022-01-18 11:22:48,371 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1781 transitions. Word has length 77 [2022-01-18 11:22:48,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:48,372 INFO L470 AbstractCegarLoop]: Abstraction has 720 states and 1781 transitions. [2022-01-18 11:22:48,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:48,372 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1781 transitions. [2022-01-18 11:22:48,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:48,374 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:48,374 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:48,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 11:22:48,374 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:48,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:48,375 INFO L85 PathProgramCache]: Analyzing trace with hash 112344222, now seen corresponding path program 7 times [2022-01-18 11:22:48,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:48,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017881296] [2022-01-18 11:22:48,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:48,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:48,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:48,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:48,496 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:48,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017881296] [2022-01-18 11:22:48,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017881296] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:48,496 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:48,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:48,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570294143] [2022-01-18 11:22:48,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:48,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:48,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:48,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:48,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:48,498 INFO L87 Difference]: Start difference. First operand 720 states and 1781 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:48,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:48,710 INFO L93 Difference]: Finished difference Result 1040 states and 2574 transitions. [2022-01-18 11:22:48,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:22:48,710 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:48,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:48,714 INFO L225 Difference]: With dead ends: 1040 [2022-01-18 11:22:48,714 INFO L226 Difference]: Without dead ends: 888 [2022-01-18 11:22:48,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:22:48,715 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 75 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 842 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 [2022-01-18 11:22:48,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 842 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:48,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2022-01-18 11:22:48,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 712. [2022-01-18 11:22:48,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 711 states have (on average 2.479606188466948) internal successors, (1763), 711 states have internal predecessors, (1763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:48,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 1763 transitions. [2022-01-18 11:22:48,731 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 1763 transitions. Word has length 77 [2022-01-18 11:22:48,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:48,731 INFO L470 AbstractCegarLoop]: Abstraction has 712 states and 1763 transitions. [2022-01-18 11:22:48,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:48,731 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 1763 transitions. [2022-01-18 11:22:48,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:48,733 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:48,733 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] [2022-01-18 11:22:48,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-18 11:22:48,733 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:48,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:48,734 INFO L85 PathProgramCache]: Analyzing trace with hash 293076268, now seen corresponding path program 8 times [2022-01-18 11:22:48,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:48,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521518849] [2022-01-18 11:22:48,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:48,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:48,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:48,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:48,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:48,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521518849] [2022-01-18 11:22:48,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521518849] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:48,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:48,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:48,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355618282] [2022-01-18 11:22:48,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:48,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:48,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:48,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:48,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:48,832 INFO L87 Difference]: Start difference. First operand 712 states and 1763 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:49,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:49,075 INFO L93 Difference]: Finished difference Result 1092 states and 2696 transitions. [2022-01-18 11:22:49,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:22:49,075 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:49,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:49,079 INFO L225 Difference]: With dead ends: 1092 [2022-01-18 11:22:49,079 INFO L226 Difference]: Without dead ends: 925 [2022-01-18 11:22:49,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:22:49,081 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 108 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:49,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 839 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:49,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2022-01-18 11:22:49,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 716. [2022-01-18 11:22:49,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 2.4755244755244754) internal successors, (1770), 715 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:49,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1770 transitions. [2022-01-18 11:22:49,098 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1770 transitions. Word has length 77 [2022-01-18 11:22:49,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:49,098 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 1770 transitions. [2022-01-18 11:22:49,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:49,098 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1770 transitions. [2022-01-18 11:22:49,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:49,100 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:49,100 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:49,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-18 11:22:49,100 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:49,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:49,101 INFO L85 PathProgramCache]: Analyzing trace with hash -404693356, now seen corresponding path program 9 times [2022-01-18 11:22:49,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:49,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866648355] [2022-01-18 11:22:49,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:49,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:49,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:49,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:49,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:49,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866648355] [2022-01-18 11:22:49,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866648355] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:49,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:49,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:49,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816606814] [2022-01-18 11:22:49,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:49,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:49,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:49,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:49,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:49,212 INFO L87 Difference]: Start difference. First operand 716 states and 1770 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:49,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:49,421 INFO L93 Difference]: Finished difference Result 1025 states and 2531 transitions. [2022-01-18 11:22:49,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:22:49,421 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:49,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:49,425 INFO L225 Difference]: With dead ends: 1025 [2022-01-18 11:22:49,425 INFO L226 Difference]: Without dead ends: 884 [2022-01-18 11:22:49,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:22:49,426 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 78 mSDsluCounter, 801 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 896 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 [2022-01-18 11:22:49,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 896 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:49,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2022-01-18 11:22:49,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 720. [2022-01-18 11:22:49,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 719 states have (on average 2.4714881780250346) internal successors, (1777), 719 states have internal predecessors, (1777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:49,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1777 transitions. [2022-01-18 11:22:49,442 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1777 transitions. Word has length 77 [2022-01-18 11:22:49,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:49,442 INFO L470 AbstractCegarLoop]: Abstraction has 720 states and 1777 transitions. [2022-01-18 11:22:49,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:49,442 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1777 transitions. [2022-01-18 11:22:49,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:49,444 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:49,444 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:49,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-18 11:22:49,444 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:49,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:49,445 INFO L85 PathProgramCache]: Analyzing trace with hash -692014354, now seen corresponding path program 10 times [2022-01-18 11:22:49,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:49,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934738232] [2022-01-18 11:22:49,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:49,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:49,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:49,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:49,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:49,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934738232] [2022-01-18 11:22:49,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934738232] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:49,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:49,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:49,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593313379] [2022-01-18 11:22:49,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:49,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:49,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:49,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:49,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:49,549 INFO L87 Difference]: Start difference. First operand 720 states and 1777 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:49,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:49,736 INFO L93 Difference]: Finished difference Result 992 states and 2438 transitions. [2022-01-18 11:22:49,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:22:49,736 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:49,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:49,740 INFO L225 Difference]: With dead ends: 992 [2022-01-18 11:22:49,740 INFO L226 Difference]: Without dead ends: 818 [2022-01-18 11:22:49,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:22:49,741 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 78 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:49,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 699 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:49,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2022-01-18 11:22:49,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 690. [2022-01-18 11:22:49,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 689 states have (on average 2.483309143686502) internal successors, (1711), 689 states have internal predecessors, (1711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:49,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1711 transitions. [2022-01-18 11:22:49,758 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1711 transitions. Word has length 77 [2022-01-18 11:22:49,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:49,759 INFO L470 AbstractCegarLoop]: Abstraction has 690 states and 1711 transitions. [2022-01-18 11:22:49,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:49,759 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1711 transitions. [2022-01-18 11:22:49,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:49,760 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:49,761 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:49,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-18 11:22:49,761 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:49,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:49,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1484822272, now seen corresponding path program 11 times [2022-01-18 11:22:49,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:49,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130313149] [2022-01-18 11:22:49,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:49,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:49,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:49,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:49,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:49,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130313149] [2022-01-18 11:22:49,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130313149] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:49,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:49,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:49,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555878865] [2022-01-18 11:22:49,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:49,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:49,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:49,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:49,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:49,860 INFO L87 Difference]: Start difference. First operand 690 states and 1711 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:50,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:50,128 INFO L93 Difference]: Finished difference Result 1173 states and 2871 transitions. [2022-01-18 11:22:50,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 11:22:50,129 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:50,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:50,133 INFO L225 Difference]: With dead ends: 1173 [2022-01-18 11:22:50,133 INFO L226 Difference]: Without dead ends: 952 [2022-01-18 11:22:50,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=184, Invalid=572, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:22:50,134 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 210 mSDsluCounter, 843 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:50,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 948 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:50,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2022-01-18 11:22:50,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 686. [2022-01-18 11:22:50,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 685 states have (on average 2.4817518248175183) internal successors, (1700), 685 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:50,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 1700 transitions. [2022-01-18 11:22:50,152 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 1700 transitions. Word has length 77 [2022-01-18 11:22:50,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:50,152 INFO L470 AbstractCegarLoop]: Abstraction has 686 states and 1700 transitions. [2022-01-18 11:22:50,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:50,153 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 1700 transitions. [2022-01-18 11:22:50,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:50,154 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:50,154 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:50,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-18 11:22:50,155 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:50,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:50,155 INFO L85 PathProgramCache]: Analyzing trace with hash -279802202, now seen corresponding path program 12 times [2022-01-18 11:22:50,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:50,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357532432] [2022-01-18 11:22:50,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:50,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:50,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:50,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:50,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:50,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357532432] [2022-01-18 11:22:50,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357532432] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:50,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:50,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:50,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67115875] [2022-01-18 11:22:50,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:50,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:50,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:50,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:50,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:50,263 INFO L87 Difference]: Start difference. First operand 686 states and 1700 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:50,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:50,499 INFO L93 Difference]: Finished difference Result 1063 states and 2627 transitions. [2022-01-18 11:22:50,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:22:50,499 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:50,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:50,503 INFO L225 Difference]: With dead ends: 1063 [2022-01-18 11:22:50,503 INFO L226 Difference]: Without dead ends: 902 [2022-01-18 11:22:50,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:22:50,504 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 121 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:50,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 737 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:50,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2022-01-18 11:22:50,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 690. [2022-01-18 11:22:50,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 689 states have (on average 2.4775036284470247) internal successors, (1707), 689 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:50,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1707 transitions. [2022-01-18 11:22:50,518 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1707 transitions. Word has length 77 [2022-01-18 11:22:50,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:50,518 INFO L470 AbstractCegarLoop]: Abstraction has 690 states and 1707 transitions. [2022-01-18 11:22:50,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:50,518 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1707 transitions. [2022-01-18 11:22:50,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:50,520 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:50,520 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:50,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-18 11:22:50,520 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:50,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:50,521 INFO L85 PathProgramCache]: Analyzing trace with hash 53330532, now seen corresponding path program 13 times [2022-01-18 11:22:50,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:50,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555687034] [2022-01-18 11:22:50,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:50,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:50,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:50,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:50,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:50,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555687034] [2022-01-18 11:22:50,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555687034] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:50,638 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:50,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:50,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222717122] [2022-01-18 11:22:50,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:50,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:50,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:50,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:50,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:50,639 INFO L87 Difference]: Start difference. First operand 690 states and 1707 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:50,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:50,826 INFO L93 Difference]: Finished difference Result 1007 states and 2481 transitions. [2022-01-18 11:22:50,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:22:50,827 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:50,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:50,830 INFO L225 Difference]: With dead ends: 1007 [2022-01-18 11:22:50,831 INFO L226 Difference]: Without dead ends: 866 [2022-01-18 11:22:50,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:22:50,831 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 91 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:50,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 738 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:50,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2022-01-18 11:22:50,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 694. [2022-01-18 11:22:50,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 693 states have (on average 2.473304473304473) internal successors, (1714), 693 states have internal predecessors, (1714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:50,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 1714 transitions. [2022-01-18 11:22:50,846 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 1714 transitions. Word has length 77 [2022-01-18 11:22:50,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:50,847 INFO L470 AbstractCegarLoop]: Abstraction has 694 states and 1714 transitions. [2022-01-18 11:22:50,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:50,847 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 1714 transitions. [2022-01-18 11:22:50,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:50,849 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:50,849 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:50,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-18 11:22:50,849 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:50,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:50,849 INFO L85 PathProgramCache]: Analyzing trace with hash -233990466, now seen corresponding path program 14 times [2022-01-18 11:22:50,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:50,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653657458] [2022-01-18 11:22:50,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:50,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:50,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:50,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:50,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:50,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653657458] [2022-01-18 11:22:50,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653657458] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:50,955 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:50,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:50,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713103623] [2022-01-18 11:22:50,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:50,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:50,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:50,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:50,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:50,956 INFO L87 Difference]: Start difference. First operand 694 states and 1714 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:51,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:51,107 INFO L93 Difference]: Finished difference Result 978 states and 2399 transitions. [2022-01-18 11:22:51,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 11:22:51,108 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:51,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:51,111 INFO L225 Difference]: With dead ends: 978 [2022-01-18 11:22:51,112 INFO L226 Difference]: Without dead ends: 814 [2022-01-18 11:22:51,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:22:51,112 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 89 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:51,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 521 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:22:51,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2022-01-18 11:22:51,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 674. [2022-01-18 11:22:51,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 673 states have (on average 2.471025260029718) internal successors, (1663), 673 states have internal predecessors, (1663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:51,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 1663 transitions. [2022-01-18 11:22:51,127 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 1663 transitions. Word has length 77 [2022-01-18 11:22:51,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:51,127 INFO L470 AbstractCegarLoop]: Abstraction has 674 states and 1663 transitions. [2022-01-18 11:22:51,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:51,127 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 1663 transitions. [2022-01-18 11:22:51,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:51,129 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:51,129 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:51,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-18 11:22:51,129 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:51,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:51,130 INFO L85 PathProgramCache]: Analyzing trace with hash 226686150, now seen corresponding path program 15 times [2022-01-18 11:22:51,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:51,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776295583] [2022-01-18 11:22:51,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:51,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:51,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:51,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:51,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:51,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776295583] [2022-01-18 11:22:51,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776295583] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:51,230 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:51,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:51,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837012115] [2022-01-18 11:22:51,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:51,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:51,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:51,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:51,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:51,231 INFO L87 Difference]: Start difference. First operand 674 states and 1663 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:51,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:51,486 INFO L93 Difference]: Finished difference Result 1067 states and 2634 transitions. [2022-01-18 11:22:51,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:22:51,487 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:51,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:51,491 INFO L225 Difference]: With dead ends: 1067 [2022-01-18 11:22:51,491 INFO L226 Difference]: Without dead ends: 906 [2022-01-18 11:22:51,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:22:51,491 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 108 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 899 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 [2022-01-18 11:22:51,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 899 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:51,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2022-01-18 11:22:51,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 682. [2022-01-18 11:22:51,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 681 states have (on average 2.4684287812041115) internal successors, (1681), 681 states have internal predecessors, (1681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:51,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 1681 transitions. [2022-01-18 11:22:51,510 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 1681 transitions. Word has length 77 [2022-01-18 11:22:51,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:51,511 INFO L470 AbstractCegarLoop]: Abstraction has 682 states and 1681 transitions. [2022-01-18 11:22:51,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:51,511 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 1681 transitions. [2022-01-18 11:22:51,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:51,512 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:51,513 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:51,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-18 11:22:51,513 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:51,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:51,513 INFO L85 PathProgramCache]: Analyzing trace with hash 559818884, now seen corresponding path program 16 times [2022-01-18 11:22:51,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:51,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596150055] [2022-01-18 11:22:51,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:51,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:51,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:51,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:51,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:51,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596150055] [2022-01-18 11:22:51,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596150055] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:51,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:51,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:51,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371823859] [2022-01-18 11:22:51,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:51,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:51,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:51,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:51,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:51,611 INFO L87 Difference]: Start difference. First operand 682 states and 1681 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:51,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:51,824 INFO L93 Difference]: Finished difference Result 1039 states and 2565 transitions. [2022-01-18 11:22:51,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:22:51,824 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:51,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:51,828 INFO L225 Difference]: With dead ends: 1039 [2022-01-18 11:22:51,828 INFO L226 Difference]: Without dead ends: 898 [2022-01-18 11:22:51,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:22:51,829 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 90 mSDsluCounter, 790 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 878 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 [2022-01-18 11:22:51,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 878 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:51,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2022-01-18 11:22:51,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 686. [2022-01-18 11:22:51,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 685 states have (on average 2.4642335766423358) internal successors, (1688), 685 states have internal predecessors, (1688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:51,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 1688 transitions. [2022-01-18 11:22:51,841 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 1688 transitions. Word has length 77 [2022-01-18 11:22:51,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:51,842 INFO L470 AbstractCegarLoop]: Abstraction has 686 states and 1688 transitions. [2022-01-18 11:22:51,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:51,842 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 1688 transitions. [2022-01-18 11:22:51,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:51,843 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:51,843 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:51,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-18 11:22:51,844 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:51,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:51,844 INFO L85 PathProgramCache]: Analyzing trace with hash 272497886, now seen corresponding path program 17 times [2022-01-18 11:22:51,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:51,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793069001] [2022-01-18 11:22:51,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:51,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:51,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:51,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:51,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:51,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793069001] [2022-01-18 11:22:51,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793069001] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:51,951 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:51,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:51,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868869288] [2022-01-18 11:22:51,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:51,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:51,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:51,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:51,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:51,952 INFO L87 Difference]: Start difference. First operand 686 states and 1688 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:52,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:52,156 INFO L93 Difference]: Finished difference Result 1018 states and 2505 transitions. [2022-01-18 11:22:52,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:22:52,157 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:52,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:52,160 INFO L225 Difference]: With dead ends: 1018 [2022-01-18 11:22:52,160 INFO L226 Difference]: Without dead ends: 866 [2022-01-18 11:22:52,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:22:52,160 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 75 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 894 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 [2022-01-18 11:22:52,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 894 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:52,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2022-01-18 11:22:52,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 678. [2022-01-18 11:22:52,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 677 states have (on average 2.466765140324963) internal successors, (1670), 677 states have internal predecessors, (1670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:52,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 1670 transitions. [2022-01-18 11:22:52,173 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 1670 transitions. Word has length 77 [2022-01-18 11:22:52,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:52,173 INFO L470 AbstractCegarLoop]: Abstraction has 678 states and 1670 transitions. [2022-01-18 11:22:52,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:52,174 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 1670 transitions. [2022-01-18 11:22:52,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:52,175 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:52,175 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:52,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-18 11:22:52,176 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:52,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:52,176 INFO L85 PathProgramCache]: Analyzing trace with hash 453229932, now seen corresponding path program 18 times [2022-01-18 11:22:52,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:52,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442331176] [2022-01-18 11:22:52,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:52,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:52,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:52,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:52,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:52,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442331176] [2022-01-18 11:22:52,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442331176] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:52,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:52,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:52,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670121154] [2022-01-18 11:22:52,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:52,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:52,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:52,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:52,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:52,276 INFO L87 Difference]: Start difference. First operand 678 states and 1670 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:52,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:52,498 INFO L93 Difference]: Finished difference Result 1070 states and 2627 transitions. [2022-01-18 11:22:52,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:22:52,499 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:52,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:52,501 INFO L225 Difference]: With dead ends: 1070 [2022-01-18 11:22:52,501 INFO L226 Difference]: Without dead ends: 903 [2022-01-18 11:22:52,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:22:52,502 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 104 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 696 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 [2022-01-18 11:22:52,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 696 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:52,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2022-01-18 11:22:52,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 682. [2022-01-18 11:22:52,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 681 states have (on average 2.462555066079295) internal successors, (1677), 681 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:52,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 1677 transitions. [2022-01-18 11:22:52,521 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 1677 transitions. Word has length 77 [2022-01-18 11:22:52,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:52,521 INFO L470 AbstractCegarLoop]: Abstraction has 682 states and 1677 transitions. [2022-01-18 11:22:52,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:52,522 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 1677 transitions. [2022-01-18 11:22:52,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:52,523 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:52,523 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] [2022-01-18 11:22:52,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-18 11:22:52,524 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:52,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:52,524 INFO L85 PathProgramCache]: Analyzing trace with hash -244539692, now seen corresponding path program 19 times [2022-01-18 11:22:52,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:52,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842998983] [2022-01-18 11:22:52,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:52,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:52,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:52,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:52,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:52,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842998983] [2022-01-18 11:22:52,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842998983] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:52,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:52,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:52,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103508636] [2022-01-18 11:22:52,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:52,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:52,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:52,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:52,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:52,626 INFO L87 Difference]: Start difference. First operand 682 states and 1677 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:52,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:52,805 INFO L93 Difference]: Finished difference Result 1003 states and 2462 transitions. [2022-01-18 11:22:52,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:22:52,805 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:52,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:52,807 INFO L225 Difference]: With dead ends: 1003 [2022-01-18 11:22:52,807 INFO L226 Difference]: Without dead ends: 862 [2022-01-18 11:22:52,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:22:52,808 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 85 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:52,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 765 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:52,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2022-01-18 11:22:52,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 686. [2022-01-18 11:22:52,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 685 states have (on average 2.4583941605839414) internal successors, (1684), 685 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:52,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 1684 transitions. [2022-01-18 11:22:52,820 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 1684 transitions. Word has length 77 [2022-01-18 11:22:52,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:52,820 INFO L470 AbstractCegarLoop]: Abstraction has 686 states and 1684 transitions. [2022-01-18 11:22:52,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:52,820 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 1684 transitions. [2022-01-18 11:22:52,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:52,822 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:52,822 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:52,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-18 11:22:52,822 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:52,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:52,823 INFO L85 PathProgramCache]: Analyzing trace with hash -531860690, now seen corresponding path program 20 times [2022-01-18 11:22:52,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:52,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106690216] [2022-01-18 11:22:52,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:52,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:52,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:52,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:52,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:52,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106690216] [2022-01-18 11:22:52,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106690216] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:52,924 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:52,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:52,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483745235] [2022-01-18 11:22:52,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:52,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:52,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:52,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:52,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:52,927 INFO L87 Difference]: Start difference. First operand 686 states and 1684 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:53,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:53,151 INFO L93 Difference]: Finished difference Result 970 states and 2369 transitions. [2022-01-18 11:22:53,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:22:53,152 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:53,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:53,154 INFO L225 Difference]: With dead ends: 970 [2022-01-18 11:22:53,154 INFO L226 Difference]: Without dead ends: 776 [2022-01-18 11:22:53,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:22:53,155 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 76 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 855 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 [2022-01-18 11:22:53,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 855 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:53,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2022-01-18 11:22:53,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 636. [2022-01-18 11:22:53,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 635 states have (on average 2.467716535433071) internal successors, (1567), 635 states have internal predecessors, (1567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:53,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 1567 transitions. [2022-01-18 11:22:53,166 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 1567 transitions. Word has length 77 [2022-01-18 11:22:53,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:53,166 INFO L470 AbstractCegarLoop]: Abstraction has 636 states and 1567 transitions. [2022-01-18 11:22:53,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:53,167 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 1567 transitions. [2022-01-18 11:22:53,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:53,168 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:53,168 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:53,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-18 11:22:53,168 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:53,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:53,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1649383172, now seen corresponding path program 1 times [2022-01-18 11:22:53,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:53,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353237070] [2022-01-18 11:22:53,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:53,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:53,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:53,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:53,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:53,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353237070] [2022-01-18 11:22:53,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353237070] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:53,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:53,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:53,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160270624] [2022-01-18 11:22:53,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:53,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:53,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:53,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:53,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:53,266 INFO L87 Difference]: Start difference. First operand 636 states and 1567 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:53,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:53,547 INFO L93 Difference]: Finished difference Result 1078 states and 2577 transitions. [2022-01-18 11:22:53,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 11:22:53,547 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:53,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:53,550 INFO L225 Difference]: With dead ends: 1078 [2022-01-18 11:22:53,550 INFO L226 Difference]: Without dead ends: 882 [2022-01-18 11:22:53,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2022-01-18 11:22:53,551 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 203 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:53,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 900 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:53,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2022-01-18 11:22:53,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 644. [2022-01-18 11:22:53,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 643 states have (on average 2.4292379471228616) internal successors, (1562), 643 states have internal predecessors, (1562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:53,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 1562 transitions. [2022-01-18 11:22:53,562 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 1562 transitions. Word has length 77 [2022-01-18 11:22:53,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:53,562 INFO L470 AbstractCegarLoop]: Abstraction has 644 states and 1562 transitions. [2022-01-18 11:22:53,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:53,563 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 1562 transitions. [2022-01-18 11:22:53,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:53,564 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:53,564 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:53,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-18 11:22:53,564 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:53,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:53,565 INFO L85 PathProgramCache]: Analyzing trace with hash 105388772, now seen corresponding path program 1 times [2022-01-18 11:22:53,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:53,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269947615] [2022-01-18 11:22:53,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:53,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:53,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:53,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:53,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:53,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269947615] [2022-01-18 11:22:53,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269947615] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:53,609 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:53,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 11:22:53,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587357568] [2022-01-18 11:22:53,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:53,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 11:22:53,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:53,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 11:22:53,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 11:22:53,610 INFO L87 Difference]: Start difference. First operand 644 states and 1562 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:53,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:53,660 INFO L93 Difference]: Finished difference Result 914 states and 2154 transitions. [2022-01-18 11:22:53,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 11:22:53,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:53,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:53,662 INFO L225 Difference]: With dead ends: 914 [2022-01-18 11:22:53,662 INFO L226 Difference]: Without dead ends: 838 [2022-01-18 11:22:53,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 11:22:53,663 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 212 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:53,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 182 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:22:53,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2022-01-18 11:22:53,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 572. [2022-01-18 11:22:53,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 571 states have (on average 2.415061295971979) internal successors, (1379), 571 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:53,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 1379 transitions. [2022-01-18 11:22:53,673 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 1379 transitions. Word has length 77 [2022-01-18 11:22:53,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:53,674 INFO L470 AbstractCegarLoop]: Abstraction has 572 states and 1379 transitions. [2022-01-18 11:22:53,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:53,674 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 1379 transitions. [2022-01-18 11:22:53,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:53,675 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:53,675 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:53,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-18 11:22:53,675 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:53,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:53,676 INFO L85 PathProgramCache]: Analyzing trace with hash -502217628, now seen corresponding path program 2 times [2022-01-18 11:22:53,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:53,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227268752] [2022-01-18 11:22:53,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:53,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:53,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:53,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:53,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:53,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227268752] [2022-01-18 11:22:53,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227268752] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:53,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:53,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:53,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519649953] [2022-01-18 11:22:53,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:53,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:53,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:53,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:53,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:53,784 INFO L87 Difference]: Start difference. First operand 572 states and 1379 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:54,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:54,024 INFO L93 Difference]: Finished difference Result 942 states and 2274 transitions. [2022-01-18 11:22:54,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:22:54,024 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:54,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:54,026 INFO L225 Difference]: With dead ends: 942 [2022-01-18 11:22:54,026 INFO L226 Difference]: Without dead ends: 769 [2022-01-18 11:22:54,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:22:54,027 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 102 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:54,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 772 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:54,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2022-01-18 11:22:54,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 576. [2022-01-18 11:22:54,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 575 states have (on average 2.4104347826086956) internal successors, (1386), 575 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:54,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 1386 transitions. [2022-01-18 11:22:54,038 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 1386 transitions. Word has length 77 [2022-01-18 11:22:54,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:54,039 INFO L470 AbstractCegarLoop]: Abstraction has 576 states and 1386 transitions. [2022-01-18 11:22:54,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:54,039 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 1386 transitions. [2022-01-18 11:22:54,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:54,040 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:54,040 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:54,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-18 11:22:54,041 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:54,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:54,041 INFO L85 PathProgramCache]: Analyzing trace with hash -115373572, now seen corresponding path program 3 times [2022-01-18 11:22:54,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:54,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626127505] [2022-01-18 11:22:54,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:54,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:54,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:54,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:54,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:54,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626127505] [2022-01-18 11:22:54,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626127505] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:54,128 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:54,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:54,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247864629] [2022-01-18 11:22:54,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:54,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:54,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:54,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:54,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:54,129 INFO L87 Difference]: Start difference. First operand 576 states and 1386 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:54,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:54,301 INFO L93 Difference]: Finished difference Result 863 states and 2076 transitions. [2022-01-18 11:22:54,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 11:22:54,301 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:54,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:54,303 INFO L225 Difference]: With dead ends: 863 [2022-01-18 11:22:54,303 INFO L226 Difference]: Without dead ends: 716 [2022-01-18 11:22:54,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:22:54,304 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 78 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:54,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 743 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:54,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2022-01-18 11:22:54,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 580. [2022-01-18 11:22:54,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 579 states have (on average 2.4058721934369602) internal successors, (1393), 579 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:54,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 1393 transitions. [2022-01-18 11:22:54,314 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 1393 transitions. Word has length 77 [2022-01-18 11:22:54,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:54,314 INFO L470 AbstractCegarLoop]: Abstraction has 580 states and 1393 transitions. [2022-01-18 11:22:54,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:54,315 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 1393 transitions. [2022-01-18 11:22:54,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:54,316 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:54,316 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:54,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-18 11:22:54,316 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:54,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:54,317 INFO L85 PathProgramCache]: Analyzing trace with hash 174595938, now seen corresponding path program 4 times [2022-01-18 11:22:54,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:54,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897348885] [2022-01-18 11:22:54,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:54,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:54,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:54,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:54,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:54,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897348885] [2022-01-18 11:22:54,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897348885] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:54,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:54,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:54,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87083738] [2022-01-18 11:22:54,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:54,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:54,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:54,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:54,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:54,409 INFO L87 Difference]: Start difference. First operand 580 states and 1393 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:54,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:54,631 INFO L93 Difference]: Finished difference Result 842 states and 2016 transitions. [2022-01-18 11:22:54,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:22:54,631 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:54,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:54,633 INFO L225 Difference]: With dead ends: 842 [2022-01-18 11:22:54,633 INFO L226 Difference]: Without dead ends: 666 [2022-01-18 11:22:54,633 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:22:54,633 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 72 mSDsluCounter, 974 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 1066 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 [2022-01-18 11:22:54,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 1066 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:54,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2022-01-18 11:22:54,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 554. [2022-01-18 11:22:54,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 553 states have (on average 2.4122965641952985) internal successors, (1334), 553 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:54,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 1334 transitions. [2022-01-18 11:22:54,643 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 1334 transitions. Word has length 77 [2022-01-18 11:22:54,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:54,643 INFO L470 AbstractCegarLoop]: Abstraction has 554 states and 1334 transitions. [2022-01-18 11:22:54,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:54,643 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 1334 transitions. [2022-01-18 11:22:54,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:54,645 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:54,645 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:54,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-18 11:22:54,645 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:54,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:54,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1397865988, now seen corresponding path program 5 times [2022-01-18 11:22:54,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:54,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148275779] [2022-01-18 11:22:54,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:54,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:54,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:54,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:54,736 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:54,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148275779] [2022-01-18 11:22:54,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148275779] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:54,736 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:54,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:54,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075775493] [2022-01-18 11:22:54,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:54,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:54,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:54,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:54,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:54,737 INFO L87 Difference]: Start difference. First operand 554 states and 1334 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:54,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:54,944 INFO L93 Difference]: Finished difference Result 925 states and 2243 transitions. [2022-01-18 11:22:54,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:22:54,944 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:54,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:54,946 INFO L225 Difference]: With dead ends: 925 [2022-01-18 11:22:54,946 INFO L226 Difference]: Without dead ends: 758 [2022-01-18 11:22:54,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:22:54,947 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 101 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:54,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 658 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:54,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2022-01-18 11:22:54,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 562. [2022-01-18 11:22:54,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 561 states have (on average 2.409982174688057) internal successors, (1352), 561 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:54,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 1352 transitions. [2022-01-18 11:22:54,958 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 1352 transitions. Word has length 77 [2022-01-18 11:22:54,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:54,959 INFO L470 AbstractCegarLoop]: Abstraction has 562 states and 1352 transitions. [2022-01-18 11:22:54,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:54,959 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 1352 transitions. [2022-01-18 11:22:54,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:54,960 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:54,960 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:54,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-18 11:22:54,961 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:54,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:54,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1730998722, now seen corresponding path program 6 times [2022-01-18 11:22:54,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:54,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992082217] [2022-01-18 11:22:54,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:54,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:54,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:55,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:55,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:55,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992082217] [2022-01-18 11:22:55,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992082217] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:55,065 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:55,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:55,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279740539] [2022-01-18 11:22:55,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:55,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:55,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:55,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:55,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:55,066 INFO L87 Difference]: Start difference. First operand 562 states and 1352 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:55,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:55,270 INFO L93 Difference]: Finished difference Result 897 states and 2174 transitions. [2022-01-18 11:22:55,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:22:55,271 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:55,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:55,272 INFO L225 Difference]: With dead ends: 897 [2022-01-18 11:22:55,272 INFO L226 Difference]: Without dead ends: 750 [2022-01-18 11:22:55,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:22:55,273 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 80 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 780 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 [2022-01-18 11:22:55,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 780 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:55,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2022-01-18 11:22:55,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 566. [2022-01-18 11:22:55,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 565 states have (on average 2.405309734513274) internal successors, (1359), 565 states have internal predecessors, (1359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:55,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 1359 transitions. [2022-01-18 11:22:55,283 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 1359 transitions. Word has length 77 [2022-01-18 11:22:55,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:55,284 INFO L470 AbstractCegarLoop]: Abstraction has 566 states and 1359 transitions. [2022-01-18 11:22:55,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:55,284 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 1359 transitions. [2022-01-18 11:22:55,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:55,285 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:55,285 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] [2022-01-18 11:22:55,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-18 11:22:55,286 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:55,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:55,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1443677724, now seen corresponding path program 7 times [2022-01-18 11:22:55,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:55,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844963580] [2022-01-18 11:22:55,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:55,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:55,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:55,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:55,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:55,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844963580] [2022-01-18 11:22:55,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844963580] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:55,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:55,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:55,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255361434] [2022-01-18 11:22:55,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:55,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:55,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:55,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:55,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:55,404 INFO L87 Difference]: Start difference. First operand 566 states and 1359 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:55,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:55,591 INFO L93 Difference]: Finished difference Result 876 states and 2114 transitions. [2022-01-18 11:22:55,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:22:55,592 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:55,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:55,593 INFO L225 Difference]: With dead ends: 876 [2022-01-18 11:22:55,594 INFO L226 Difference]: Without dead ends: 718 [2022-01-18 11:22:55,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:22:55,594 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 75 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 803 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 [2022-01-18 11:22:55,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 803 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:55,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2022-01-18 11:22:55,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 558. [2022-01-18 11:22:55,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 557 states have (on average 2.40754039497307) internal successors, (1341), 557 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:55,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 1341 transitions. [2022-01-18 11:22:55,604 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 1341 transitions. Word has length 77 [2022-01-18 11:22:55,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:55,605 INFO L470 AbstractCegarLoop]: Abstraction has 558 states and 1341 transitions. [2022-01-18 11:22:55,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:55,605 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 1341 transitions. [2022-01-18 11:22:55,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:55,606 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:55,606 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] [2022-01-18 11:22:55,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-18 11:22:55,606 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:55,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:55,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1624409770, now seen corresponding path program 8 times [2022-01-18 11:22:55,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:55,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967836993] [2022-01-18 11:22:55,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:55,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:55,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:55,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:55,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:55,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967836993] [2022-01-18 11:22:55,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967836993] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:55,713 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:55,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:55,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740878491] [2022-01-18 11:22:55,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:55,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:55,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:55,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:55,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:55,714 INFO L87 Difference]: Start difference. First operand 558 states and 1341 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:55,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:55,954 INFO L93 Difference]: Finished difference Result 928 states and 2236 transitions. [2022-01-18 11:22:55,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:22:55,955 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:55,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:55,956 INFO L225 Difference]: With dead ends: 928 [2022-01-18 11:22:55,956 INFO L226 Difference]: Without dead ends: 755 [2022-01-18 11:22:55,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:22:55,957 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 110 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:55,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 834 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:55,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2022-01-18 11:22:55,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 562. [2022-01-18 11:22:55,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 561 states have (on average 2.4028520499108734) internal successors, (1348), 561 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:55,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 1348 transitions. [2022-01-18 11:22:55,968 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 1348 transitions. Word has length 77 [2022-01-18 11:22:55,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:55,968 INFO L470 AbstractCegarLoop]: Abstraction has 562 states and 1348 transitions. [2022-01-18 11:22:55,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:55,968 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 1348 transitions. [2022-01-18 11:22:55,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:55,969 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:55,969 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:55,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-18 11:22:55,970 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:55,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:55,970 INFO L85 PathProgramCache]: Analyzing trace with hash 926640146, now seen corresponding path program 9 times [2022-01-18 11:22:55,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:55,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440560911] [2022-01-18 11:22:55,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:55,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:55,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:56,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:56,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:56,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440560911] [2022-01-18 11:22:56,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440560911] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:56,073 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:56,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:56,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220029955] [2022-01-18 11:22:56,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:56,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:56,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:56,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:56,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:56,074 INFO L87 Difference]: Start difference. First operand 562 states and 1348 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:56,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:56,267 INFO L93 Difference]: Finished difference Result 861 states and 2071 transitions. [2022-01-18 11:22:56,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:22:56,268 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:56,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:56,269 INFO L225 Difference]: With dead ends: 861 [2022-01-18 11:22:56,269 INFO L226 Difference]: Without dead ends: 714 [2022-01-18 11:22:56,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:22:56,270 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 79 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:56,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 771 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:56,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2022-01-18 11:22:56,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 566. [2022-01-18 11:22:56,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 565 states have (on average 2.398230088495575) internal successors, (1355), 565 states have internal predecessors, (1355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:56,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 1355 transitions. [2022-01-18 11:22:56,282 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 1355 transitions. Word has length 77 [2022-01-18 11:22:56,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:56,282 INFO L470 AbstractCegarLoop]: Abstraction has 566 states and 1355 transitions. [2022-01-18 11:22:56,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:56,282 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 1355 transitions. [2022-01-18 11:22:56,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:56,283 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:56,284 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:56,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-18 11:22:56,284 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:56,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:56,284 INFO L85 PathProgramCache]: Analyzing trace with hash 639319148, now seen corresponding path program 10 times [2022-01-18 11:22:56,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:56,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7564477] [2022-01-18 11:22:56,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:56,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:56,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:56,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:56,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:56,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7564477] [2022-01-18 11:22:56,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7564477] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:56,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:56,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:56,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668873288] [2022-01-18 11:22:56,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:56,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:56,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:56,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:56,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:56,390 INFO L87 Difference]: Start difference. First operand 566 states and 1355 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:56,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:56,580 INFO L93 Difference]: Finished difference Result 828 states and 1978 transitions. [2022-01-18 11:22:56,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:22:56,580 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:56,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:56,582 INFO L225 Difference]: With dead ends: 828 [2022-01-18 11:22:56,582 INFO L226 Difference]: Without dead ends: 648 [2022-01-18 11:22:56,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:22:56,583 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 78 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 893 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 [2022-01-18 11:22:56,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 893 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:56,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2022-01-18 11:22:56,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 536. [2022-01-18 11:22:56,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 535 states have (on average 2.4093457943925234) internal successors, (1289), 535 states have internal predecessors, (1289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:56,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1289 transitions. [2022-01-18 11:22:56,592 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1289 transitions. Word has length 77 [2022-01-18 11:22:56,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:56,592 INFO L470 AbstractCegarLoop]: Abstraction has 536 states and 1289 transitions. [2022-01-18 11:22:56,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:56,593 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1289 transitions. [2022-01-18 11:22:56,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:56,594 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:56,594 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:56,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-18 11:22:56,594 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:56,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:56,594 INFO L85 PathProgramCache]: Analyzing trace with hash 300788800, now seen corresponding path program 11 times [2022-01-18 11:22:56,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:56,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453458893] [2022-01-18 11:22:56,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:56,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:56,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:56,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:56,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:56,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453458893] [2022-01-18 11:22:56,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453458893] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:56,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:56,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:56,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541915611] [2022-01-18 11:22:56,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:56,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:56,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:56,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:56,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:56,698 INFO L87 Difference]: Start difference. First operand 536 states and 1289 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:56,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:56,942 INFO L93 Difference]: Finished difference Result 997 states and 2354 transitions. [2022-01-18 11:22:56,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 11:22:56,942 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:56,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:56,943 INFO L225 Difference]: With dead ends: 997 [2022-01-18 11:22:56,943 INFO L226 Difference]: Without dead ends: 770 [2022-01-18 11:22:56,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:22:56,944 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 207 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:56,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 849 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:56,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2022-01-18 11:22:56,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 532. [2022-01-18 11:22:56,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 531 states have (on average 2.354048964218456) internal successors, (1250), 531 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:56,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 1250 transitions. [2022-01-18 11:22:56,954 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 1250 transitions. Word has length 77 [2022-01-18 11:22:56,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:56,954 INFO L470 AbstractCegarLoop]: Abstraction has 532 states and 1250 transitions. [2022-01-18 11:22:56,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:56,954 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 1250 transitions. [2022-01-18 11:22:56,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:56,955 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:56,955 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:56,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-18 11:22:56,956 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:56,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:56,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1578682278, now seen corresponding path program 12 times [2022-01-18 11:22:56,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:56,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809329019] [2022-01-18 11:22:56,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:56,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:56,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:57,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:57,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:57,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809329019] [2022-01-18 11:22:57,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809329019] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:57,039 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:57,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:57,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587931568] [2022-01-18 11:22:57,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:57,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:57,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:57,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:57,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:57,040 INFO L87 Difference]: Start difference. First operand 532 states and 1250 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:57,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:57,266 INFO L93 Difference]: Finished difference Result 899 states and 2139 transitions. [2022-01-18 11:22:57,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:22:57,267 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:57,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:57,269 INFO L225 Difference]: With dead ends: 899 [2022-01-18 11:22:57,269 INFO L226 Difference]: Without dead ends: 732 [2022-01-18 11:22:57,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:22:57,269 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 121 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:57,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 934 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:57,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2022-01-18 11:22:57,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 536. [2022-01-18 11:22:57,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 535 states have (on average 2.349532710280374) internal successors, (1257), 535 states have internal predecessors, (1257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:57,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1257 transitions. [2022-01-18 11:22:57,279 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1257 transitions. Word has length 77 [2022-01-18 11:22:57,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:57,279 INFO L470 AbstractCegarLoop]: Abstraction has 536 states and 1257 transitions. [2022-01-18 11:22:57,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:57,279 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1257 transitions. [2022-01-18 11:22:57,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:57,280 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:57,280 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:57,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-18 11:22:57,281 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:57,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:57,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1911815012, now seen corresponding path program 13 times [2022-01-18 11:22:57,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:57,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671559451] [2022-01-18 11:22:57,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:57,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:57,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:57,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:57,377 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:57,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671559451] [2022-01-18 11:22:57,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671559451] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:57,377 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:57,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:57,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276629872] [2022-01-18 11:22:57,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:57,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:57,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:57,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:57,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:57,378 INFO L87 Difference]: Start difference. First operand 536 states and 1257 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:57,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:57,546 INFO L93 Difference]: Finished difference Result 843 states and 1993 transitions. [2022-01-18 11:22:57,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:22:57,546 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:57,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:57,548 INFO L225 Difference]: With dead ends: 843 [2022-01-18 11:22:57,548 INFO L226 Difference]: Without dead ends: 696 [2022-01-18 11:22:57,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:22:57,549 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 89 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:57,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 713 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:57,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2022-01-18 11:22:57,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 540. [2022-01-18 11:22:57,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 539 states have (on average 2.345083487940631) internal successors, (1264), 539 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:57,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 1264 transitions. [2022-01-18 11:22:57,558 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 1264 transitions. Word has length 77 [2022-01-18 11:22:57,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:57,558 INFO L470 AbstractCegarLoop]: Abstraction has 540 states and 1264 transitions. [2022-01-18 11:22:57,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:57,558 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 1264 transitions. [2022-01-18 11:22:57,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:57,559 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:57,559 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] [2022-01-18 11:22:57,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-18 11:22:57,560 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:57,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:57,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1624494014, now seen corresponding path program 14 times [2022-01-18 11:22:57,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:57,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317021156] [2022-01-18 11:22:57,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:57,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:57,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:57,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:57,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:57,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317021156] [2022-01-18 11:22:57,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317021156] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:57,642 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:57,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:57,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48197856] [2022-01-18 11:22:57,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:57,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:57,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:57,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:57,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:57,644 INFO L87 Difference]: Start difference. First operand 540 states and 1264 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:57,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:57,826 INFO L93 Difference]: Finished difference Result 814 states and 1911 transitions. [2022-01-18 11:22:57,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 11:22:57,826 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:57,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:57,827 INFO L225 Difference]: With dead ends: 814 [2022-01-18 11:22:57,827 INFO L226 Difference]: Without dead ends: 644 [2022-01-18 11:22:57,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:22:57,828 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 80 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 976 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 [2022-01-18 11:22:57,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 976 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:57,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2022-01-18 11:22:57,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 520. [2022-01-18 11:22:57,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 519 states have (on average 2.3371868978805397) internal successors, (1213), 519 states have internal predecessors, (1213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:57,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 1213 transitions. [2022-01-18 11:22:57,836 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 1213 transitions. Word has length 77 [2022-01-18 11:22:57,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:57,836 INFO L470 AbstractCegarLoop]: Abstraction has 520 states and 1213 transitions. [2022-01-18 11:22:57,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:57,837 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 1213 transitions. [2022-01-18 11:22:57,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:57,838 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:57,838 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] [2022-01-18 11:22:57,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-18 11:22:57,838 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:57,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:57,838 INFO L85 PathProgramCache]: Analyzing trace with hash 174466916, now seen corresponding path program 15 times [2022-01-18 11:22:57,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:57,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194751289] [2022-01-18 11:22:57,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:57,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:57,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:57,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:57,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:57,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194751289] [2022-01-18 11:22:57,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194751289] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:57,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:57,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:57,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344151901] [2022-01-18 11:22:57,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:57,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:57,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:57,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:57,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:57,931 INFO L87 Difference]: Start difference. First operand 520 states and 1213 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:58,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:58,178 INFO L93 Difference]: Finished difference Result 903 states and 2146 transitions. [2022-01-18 11:22:58,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:22:58,178 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:58,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:58,180 INFO L225 Difference]: With dead ends: 903 [2022-01-18 11:22:58,180 INFO L226 Difference]: Without dead ends: 736 [2022-01-18 11:22:58,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:22:58,180 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 108 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 876 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 [2022-01-18 11:22:58,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 876 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:58,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2022-01-18 11:22:58,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 528. [2022-01-18 11:22:58,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 2.3358633776091082) internal successors, (1231), 527 states have internal predecessors, (1231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:58,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 1231 transitions. [2022-01-18 11:22:58,190 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 1231 transitions. Word has length 77 [2022-01-18 11:22:58,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:58,190 INFO L470 AbstractCegarLoop]: Abstraction has 528 states and 1231 transitions. [2022-01-18 11:22:58,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:58,190 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 1231 transitions. [2022-01-18 11:22:58,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:58,191 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:58,191 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:58,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-18 11:22:58,192 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:58,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:58,192 INFO L85 PathProgramCache]: Analyzing trace with hash 507599650, now seen corresponding path program 16 times [2022-01-18 11:22:58,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:58,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639312752] [2022-01-18 11:22:58,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:58,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:58,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:58,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:58,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:58,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639312752] [2022-01-18 11:22:58,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639312752] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:58,289 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:58,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:58,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382776614] [2022-01-18 11:22:58,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:58,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:58,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:58,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:58,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:58,292 INFO L87 Difference]: Start difference. First operand 528 states and 1231 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:58,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:58,502 INFO L93 Difference]: Finished difference Result 875 states and 2077 transitions. [2022-01-18 11:22:58,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:22:58,502 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:58,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:58,504 INFO L225 Difference]: With dead ends: 875 [2022-01-18 11:22:58,504 INFO L226 Difference]: Without dead ends: 728 [2022-01-18 11:22:58,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:22:58,504 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 87 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 931 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 [2022-01-18 11:22:58,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 931 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:58,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2022-01-18 11:22:58,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 532. [2022-01-18 11:22:58,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 531 states have (on average 2.3314500941619585) internal successors, (1238), 531 states have internal predecessors, (1238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:58,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 1238 transitions. [2022-01-18 11:22:58,516 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 1238 transitions. Word has length 77 [2022-01-18 11:22:58,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:58,516 INFO L470 AbstractCegarLoop]: Abstraction has 532 states and 1238 transitions. [2022-01-18 11:22:58,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:58,517 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 1238 transitions. [2022-01-18 11:22:58,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:58,517 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:58,518 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:58,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-18 11:22:58,518 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:58,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:58,518 INFO L85 PathProgramCache]: Analyzing trace with hash 220278652, now seen corresponding path program 17 times [2022-01-18 11:22:58,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:58,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089532387] [2022-01-18 11:22:58,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:58,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:58,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:58,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:58,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:58,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089532387] [2022-01-18 11:22:58,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089532387] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:58,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:58,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:58,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152467510] [2022-01-18 11:22:58,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:58,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:58,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:58,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:58,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:58,622 INFO L87 Difference]: Start difference. First operand 532 states and 1238 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:58,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:58,811 INFO L93 Difference]: Finished difference Result 854 states and 2017 transitions. [2022-01-18 11:22:58,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:22:58,815 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:58,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:58,817 INFO L225 Difference]: With dead ends: 854 [2022-01-18 11:22:58,817 INFO L226 Difference]: Without dead ends: 696 [2022-01-18 11:22:58,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:22:58,818 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 73 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:58,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 944 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:58,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2022-01-18 11:22:58,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 524. [2022-01-18 11:22:58,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 523 states have (on average 2.332695984703633) internal successors, (1220), 523 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:58,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 1220 transitions. [2022-01-18 11:22:58,826 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 1220 transitions. Word has length 77 [2022-01-18 11:22:58,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:58,826 INFO L470 AbstractCegarLoop]: Abstraction has 524 states and 1220 transitions. [2022-01-18 11:22:58,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:58,826 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 1220 transitions. [2022-01-18 11:22:58,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:58,827 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:58,827 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:58,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-18 11:22:58,828 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:58,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:58,828 INFO L85 PathProgramCache]: Analyzing trace with hash 401010698, now seen corresponding path program 18 times [2022-01-18 11:22:58,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:58,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130149053] [2022-01-18 11:22:58,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:58,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:58,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:58,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:58,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:58,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130149053] [2022-01-18 11:22:58,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130149053] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:58,922 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:58,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:58,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706956161] [2022-01-18 11:22:58,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:58,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:58,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:58,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:58,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:58,923 INFO L87 Difference]: Start difference. First operand 524 states and 1220 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:59,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:59,113 INFO L93 Difference]: Finished difference Result 906 states and 2139 transitions. [2022-01-18 11:22:59,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:22:59,113 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:59,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:59,115 INFO L225 Difference]: With dead ends: 906 [2022-01-18 11:22:59,115 INFO L226 Difference]: Without dead ends: 733 [2022-01-18 11:22:59,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:22:59,116 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 112 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:59,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 792 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:59,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2022-01-18 11:22:59,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 528. [2022-01-18 11:22:59,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 2.3282732447817835) internal successors, (1227), 527 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:59,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 1227 transitions. [2022-01-18 11:22:59,124 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 1227 transitions. Word has length 77 [2022-01-18 11:22:59,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:59,124 INFO L470 AbstractCegarLoop]: Abstraction has 528 states and 1227 transitions. [2022-01-18 11:22:59,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:59,124 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 1227 transitions. [2022-01-18 11:22:59,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:59,125 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:59,125 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] [2022-01-18 11:22:59,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-18 11:22:59,126 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:59,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:59,126 INFO L85 PathProgramCache]: Analyzing trace with hash -296758926, now seen corresponding path program 19 times [2022-01-18 11:22:59,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:59,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102650861] [2022-01-18 11:22:59,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:59,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:59,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:59,207 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:59,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102650861] [2022-01-18 11:22:59,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102650861] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:59,207 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:59,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:59,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894285285] [2022-01-18 11:22:59,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:59,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:59,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:59,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:59,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:59,209 INFO L87 Difference]: Start difference. First operand 528 states and 1227 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:59,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:59,374 INFO L93 Difference]: Finished difference Result 839 states and 1974 transitions. [2022-01-18 11:22:59,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:22:59,375 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:59,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:59,376 INFO L225 Difference]: With dead ends: 839 [2022-01-18 11:22:59,376 INFO L226 Difference]: Without dead ends: 692 [2022-01-18 11:22:59,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:22:59,376 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 86 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 856 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 [2022-01-18 11:22:59,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 856 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:59,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2022-01-18 11:22:59,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 532. [2022-01-18 11:22:59,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 531 states have (on average 2.3239171374764593) internal successors, (1234), 531 states have internal predecessors, (1234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:59,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 1234 transitions. [2022-01-18 11:22:59,385 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 1234 transitions. Word has length 77 [2022-01-18 11:22:59,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:59,386 INFO L470 AbstractCegarLoop]: Abstraction has 532 states and 1234 transitions. [2022-01-18 11:22:59,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:59,386 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 1234 transitions. [2022-01-18 11:22:59,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:59,387 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:59,387 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] [2022-01-18 11:22:59,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-18 11:22:59,387 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:59,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:59,388 INFO L85 PathProgramCache]: Analyzing trace with hash -584079924, now seen corresponding path program 20 times [2022-01-18 11:22:59,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:59,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826726543] [2022-01-18 11:22:59,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:59,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:59,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:59,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:59,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:59,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826726543] [2022-01-18 11:22:59,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826726543] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:59,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:59,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:22:59,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069783909] [2022-01-18 11:22:59,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:59,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:22:59,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:59,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:22:59,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:22:59,477 INFO L87 Difference]: Start difference. First operand 532 states and 1234 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:59,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:59,684 INFO L93 Difference]: Finished difference Result 806 states and 1881 transitions. [2022-01-18 11:22:59,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:22:59,684 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:59,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:59,686 INFO L225 Difference]: With dead ends: 806 [2022-01-18 11:22:59,686 INFO L226 Difference]: Without dead ends: 606 [2022-01-18 11:22:59,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:22:59,687 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 76 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:59,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 793 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:22:59,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2022-01-18 11:22:59,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 482. [2022-01-18 11:22:59,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 481 states have (on average 2.322245322245322) internal successors, (1117), 481 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:59,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 1117 transitions. [2022-01-18 11:22:59,694 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 1117 transitions. Word has length 77 [2022-01-18 11:22:59,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:59,694 INFO L470 AbstractCegarLoop]: Abstraction has 482 states and 1117 transitions. [2022-01-18 11:22:59,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:59,695 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 1117 transitions. [2022-01-18 11:22:59,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:59,695 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:59,695 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:59,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-18 11:22:59,696 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:59,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:59,696 INFO L85 PathProgramCache]: Analyzing trace with hash -285934182, now seen corresponding path program 2 times [2022-01-18 11:22:59,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:59,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570939953] [2022-01-18 11:22:59,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:59,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:59,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:59,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:59,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:59,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570939953] [2022-01-18 11:22:59,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570939953] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:59,742 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:59,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 11:22:59,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173916051] [2022-01-18 11:22:59,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:59,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 11:22:59,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:59,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 11:22:59,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-18 11:22:59,743 INFO L87 Difference]: Start difference. First operand 482 states and 1117 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:59,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:59,759 INFO L93 Difference]: Finished difference Result 419 states and 922 transitions. [2022-01-18 11:22:59,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-18 11:22:59,760 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:59,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:59,760 INFO L225 Difference]: With dead ends: 419 [2022-01-18 11:22:59,760 INFO L226 Difference]: Without dead ends: 387 [2022-01-18 11:22:59,761 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 [2022-01-18 11:22:59,761 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 64 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:59,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 144 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:22:59,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2022-01-18 11:22:59,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 387. [2022-01-18 11:22:59,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 386 states have (on average 2.243523316062176) internal successors, (866), 386 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:59,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 866 transitions. [2022-01-18 11:22:59,769 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 866 transitions. Word has length 77 [2022-01-18 11:22:59,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:59,769 INFO L470 AbstractCegarLoop]: Abstraction has 387 states and 866 transitions. [2022-01-18 11:22:59,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:59,769 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 866 transitions. [2022-01-18 11:22:59,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 11:22:59,770 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:22:59,770 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:22:59,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-18 11:22:59,770 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:22:59,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:22:59,770 INFO L85 PathProgramCache]: Analyzing trace with hash 2078515196, now seen corresponding path program 2 times [2022-01-18 11:22:59,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:22:59,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362303863] [2022-01-18 11:22:59,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:22:59,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:22:59,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:22:59,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:22:59,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:22:59,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362303863] [2022-01-18 11:22:59,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362303863] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:22:59,820 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:22:59,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 11:22:59,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261518330] [2022-01-18 11:22:59,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:22:59,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 11:22:59,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:22:59,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 11:22:59,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-18 11:22:59,821 INFO L87 Difference]: Start difference. First operand 387 states and 866 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:59,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:22:59,833 INFO L93 Difference]: Finished difference Result 86 states and 128 transitions. [2022-01-18 11:22:59,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-18 11:22:59,833 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 11:22:59,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:22:59,833 INFO L225 Difference]: With dead ends: 86 [2022-01-18 11:22:59,833 INFO L226 Difference]: Without dead ends: 0 [2022-01-18 11:22:59,833 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 [2022-01-18 11:22:59,834 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 23 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:22:59,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 90 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:22:59,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-18 11:22:59,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-18 11:22:59,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:59,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-18 11:22:59,834 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 77 [2022-01-18 11:22:59,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:22:59,835 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-18 11:22:59,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:22:59,835 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-18 11:22:59,835 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-18 11:22:59,837 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-18 11:22:59,837 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-18 11:22:59,837 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-01-18 11:22:59,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-18 11:22:59,841 INFO L732 BasicCegarLoop]: Path program histogram: [20, 20, 2, 2, 1, 1, 1] [2022-01-18 11:22:59,842 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 11:22:59,842 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 11:22:59,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 11:22:59 BasicIcfg [2022-01-18 11:22:59,845 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 11:22:59,845 INFO L158 Benchmark]: Toolchain (without parser) took 16455.75ms. Allocated memory was 402.7MB in the beginning and 673.2MB in the end (delta: 270.5MB). Free memory was 346.6MB in the beginning and 619.0MB in the end (delta: -272.4MB). Peak memory consumption was 142.6kB. Max. memory is 16.0GB. [2022-01-18 11:22:59,845 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 402.7MB. Free memory is still 363.5MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 11:22:59,845 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.31ms. Allocated memory was 402.7MB in the beginning and 553.6MB in the end (delta: 151.0MB). Free memory was 346.4MB in the beginning and 525.9MB in the end (delta: -179.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. [2022-01-18 11:22:59,845 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.08ms. Allocated memory is still 553.6MB. Free memory was 525.9MB in the beginning and 524.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 11:22:59,846 INFO L158 Benchmark]: Boogie Preprocessor took 17.25ms. Allocated memory is still 553.6MB. Free memory was 524.3MB in the beginning and 523.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 11:22:59,846 INFO L158 Benchmark]: RCFGBuilder took 328.92ms. Allocated memory is still 553.6MB. Free memory was 523.0MB in the beginning and 511.0MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2022-01-18 11:22:59,846 INFO L158 Benchmark]: TraceAbstraction took 15865.51ms. Allocated memory was 553.6MB in the beginning and 673.2MB in the end (delta: 119.5MB). Free memory was 510.4MB in the beginning and 619.0MB in the end (delta: -108.6MB). Peak memory consumption was 11.3MB. Max. memory is 16.0GB. [2022-01-18 11:22:59,853 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 402.7MB. Free memory is still 363.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 213.31ms. Allocated memory was 402.7MB in the beginning and 553.6MB in the end (delta: 151.0MB). Free memory was 346.4MB in the beginning and 525.9MB in the end (delta: -179.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 26.08ms. Allocated memory is still 553.6MB. Free memory was 525.9MB in the beginning and 524.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 17.25ms. Allocated memory is still 553.6MB. Free memory was 524.3MB in the beginning and 523.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 328.92ms. Allocated memory is still 553.6MB. Free memory was 523.0MB in the beginning and 511.0MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * TraceAbstraction took 15865.51ms. Allocated memory was 553.6MB in the beginning and 673.2MB in the end (delta: 119.5MB). Free memory was 510.4MB in the beginning and 619.0MB in the end (delta: -108.6MB). Peak memory consumption was 11.3MB. Max. memory is 16.0GB. * 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 - PositiveResult [Line: 69]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 122 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 15.7s, OverallIterations: 47, TraceHistogramMax: 1, PathProgramHistogramMax: 20, EmptinessCheckTime: 0.1s, AutomataDifference: 9.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4769 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4769 mSDsluCounter, 34947 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30566 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7087 IncrementalHoareTripleChecker+Invalid, 7124 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 5864 mSDtfsCounter, 7087 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1029 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 869 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3583 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=814occurred in iteration=1, InterpolantAutomatonStates: 801, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 47 MinimizatonAttempts, 8907 StatesRemovedByMinimization, 44 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 3611 NumberOfCodeBlocks, 3611 NumberOfCodeBlocksAsserted, 47 NumberOfCheckSat, 3564 ConstructedInterpolants, 0 QuantifiedInterpolants, 15718 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 47 InterpolantComputations, 47 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-18 11:22:59,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...