/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/parallel-bakery-4.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:48:38,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:48:38,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:48:38,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:48:38,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:48:38,655 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:48:38,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:48:38,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:48:38,661 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:48:38,666 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:48:38,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:48:38,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:48:38,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:48:38,670 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:48:38,671 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:48:38,674 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:48:38,674 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:48:38,675 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:48:38,677 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:48:38,683 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:48:38,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:48:38,685 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:48:38,687 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:48:38,688 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:48:38,694 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 11:48:38,695 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 11:48:38,695 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 11:48:38,697 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 11:48:38,697 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 11:48:38,698 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 11:48:38,698 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 11:48:38,699 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 11:48:38,700 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 11:48:38,701 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 11:48:38,702 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 11:48:38,702 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 11:48:38,703 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 11:48:38,703 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 11:48:38,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:48:38,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:48:38,704 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:48:38,705 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-PN-NoLbe.epf [2022-09-16 11:48:38,726 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:48:38,727 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:48:38,728 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:48:38,728 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:48:38,728 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:48:38,728 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:48:38,729 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:48:38,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:48:38,729 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:48:38,729 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:48:38,730 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:48:38,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:48:38,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:48:38,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:48:38,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:48:38,731 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:48:38,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:48:38,731 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:48:38,731 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:48:38,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:48:38,731 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:48:38,731 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:48:38,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:48:38,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:48:38,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:48:38,732 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:48:38,732 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:48:38,732 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:48:38,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:48:38,733 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:48:38,733 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:48:38,733 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:48:38,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:48:38,996 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:48:38,998 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:48:38,999 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:48:38,999 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:48:39,000 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-bakery-4.wvr.c [2022-09-16 11:48:39,062 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab311ab04/1456ff6b99fd49cbbf8a6a0acf8e6174/FLAG856d33652 [2022-09-16 11:48:39,448 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:48:39,448 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bakery-4.wvr.c [2022-09-16 11:48:39,468 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab311ab04/1456ff6b99fd49cbbf8a6a0acf8e6174/FLAG856d33652 [2022-09-16 11:48:39,477 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab311ab04/1456ff6b99fd49cbbf8a6a0acf8e6174 [2022-09-16 11:48:39,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:48:39,481 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:48:39,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:48:39,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:48:39,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:48:39,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:48:39" (1/1) ... [2022-09-16 11:48:39,486 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@177f23d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:48:39, skipping insertion in model container [2022-09-16 11:48:39,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:48:39" (1/1) ... [2022-09-16 11:48:39,495 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:48:39,528 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:48:39,717 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/parallel-bakery-4.wvr.c[7978,7991] [2022-09-16 11:48:39,718 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:48:39,724 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:48:39,757 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/parallel-bakery-4.wvr.c[7978,7991] [2022-09-16 11:48:39,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:48:39,768 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:48:39,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:48:39 WrapperNode [2022-09-16 11:48:39,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:48:39,769 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:48:39,770 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:48:39,770 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:48:39,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:48:39" (1/1) ... [2022-09-16 11:48:39,783 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:48:39" (1/1) ... [2022-09-16 11:48:39,816 INFO L138 Inliner]: procedures = 23, calls = 176, calls flagged for inlining = 28, calls inlined = 28, statements flattened = 456 [2022-09-16 11:48:39,816 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:48:39,817 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:48:39,817 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:48:39,817 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:48:39,823 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:48:39" (1/1) ... [2022-09-16 11:48:39,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:48:39" (1/1) ... [2022-09-16 11:48:39,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:48:39" (1/1) ... [2022-09-16 11:48:39,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:48:39" (1/1) ... [2022-09-16 11:48:39,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:48:39" (1/1) ... [2022-09-16 11:48:39,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:48:39" (1/1) ... [2022-09-16 11:48:39,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:48:39" (1/1) ... [2022-09-16 11:48:39,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:48:39,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:48:39,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:48:39,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:48:39,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:48:39" (1/1) ... [2022-09-16 11:48:39,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:48:39,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:48:39,885 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) [2022-09-16 11:48:39,887 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 [2022-09-16 11:48:39,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:48:39,911 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-16 11:48:39,911 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-16 11:48:39,911 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-16 11:48:39,911 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-16 11:48:39,911 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-09-16 11:48:39,911 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-09-16 11:48:39,911 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-09-16 11:48:39,911 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-09-16 11:48:39,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:48:39,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:48:39,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:48:39,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:48:39,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:48:39,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:48:39,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:48:39,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 11:48:39,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:48:39,914 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 11:48:40,000 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:48:40,002 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:48:40,532 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:48:40,787 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:48:40,787 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:48:40,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:48:40 BoogieIcfgContainer [2022-09-16 11:48:40,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:48:40,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:48:40,793 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:48:40,796 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:48:40,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:48:39" (1/3) ... [2022-09-16 11:48:40,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e1aa7b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:48:40, skipping insertion in model container [2022-09-16 11:48:40,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:48:39" (2/3) ... [2022-09-16 11:48:40,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e1aa7b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:48:40, skipping insertion in model container [2022-09-16 11:48:40,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:48:40" (3/3) ... [2022-09-16 11:48:40,799 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bakery-4.wvr.c [2022-09-16 11:48:40,816 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:48:40,816 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-09-16 11:48:40,816 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:48:40,915 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-09-16 11:48:40,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 228 places, 217 transitions, 466 flow [2022-09-16 11:48:41,064 INFO L130 PetriNetUnfolder]: 2/213 cut-off events. [2022-09-16 11:48:41,064 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-09-16 11:48:41,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 213 events. 2/213 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 281 event pairs, 0 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 162. Up to 2 conditions per place. [2022-09-16 11:48:41,067 INFO L82 GeneralOperation]: Start removeDead. Operand has 228 places, 217 transitions, 466 flow [2022-09-16 11:48:41,072 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 202 places, 190 transitions, 401 flow [2022-09-16 11:48:41,082 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:48:41,087 INFO L357 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=false, mAutomataTypeConcurrency=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3162d84c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:48:41,088 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2022-09-16 11:48:41,105 INFO L130 PetriNetUnfolder]: 1/84 cut-off events. [2022-09-16 11:48:41,106 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:48:41,106 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:48:41,106 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:48:41,107 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2022-09-16 11:48:41,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:48:41,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1682171443, now seen corresponding path program 1 times [2022-09-16 11:48:41,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:48:41,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430067342] [2022-09-16 11:48:41,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:48:41,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:48:41,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:48:41,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:48:41,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:48:41,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430067342] [2022-09-16 11:48:41,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430067342] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:48:41,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:48:41,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:48:41,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062516752] [2022-09-16 11:48:41,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:48:41,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:48:41,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:48:41,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:48:41,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:48:41,493 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 217 [2022-09-16 11:48:41,500 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 190 transitions, 401 flow. Second operand has 5 states, 5 states have (on average 142.6) internal successors, (713), 5 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:48:41,500 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:48:41,501 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 217 [2022-09-16 11:48:41,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:49:19,037 INFO L130 PetriNetUnfolder]: 158144/245842 cut-off events. [2022-09-16 11:49:19,037 INFO L131 PetriNetUnfolder]: For 14461/14461 co-relation queries the response was YES. [2022-09-16 11:49:19,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 472702 conditions, 245842 events. 158144/245842 cut-off events. For 14461/14461 co-relation queries the response was YES. Maximal size of possible extension queue 5442. Compared 2294867 event pairs, 34808 based on Foata normal form. 1/207988 useless extension candidates. Maximal degree in co-relation 470636. Up to 197473 conditions per place. [2022-09-16 11:49:21,339 INFO L137 encePairwiseOnDemand]: 207/217 looper letters, 105 selfloop transitions, 7 changer transitions 1/228 dead transitions. [2022-09-16 11:49:21,339 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 228 transitions, 710 flow [2022-09-16 11:49:21,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 11:49:21,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-09-16 11:49:21,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 956 transitions. [2022-09-16 11:49:21,356 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7342549923195084 [2022-09-16 11:49:21,357 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 956 transitions. [2022-09-16 11:49:21,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 956 transitions. [2022-09-16 11:49:21,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:49:21,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 956 transitions. [2022-09-16 11:49:21,368 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 159.33333333333334) internal successors, (956), 6 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:49:21,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 217.0) internal successors, (1519), 7 states have internal predecessors, (1519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:49:21,377 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 217.0) internal successors, (1519), 7 states have internal predecessors, (1519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:49:21,379 INFO L175 Difference]: Start difference. First operand has 202 places, 190 transitions, 401 flow. Second operand 6 states and 956 transitions. [2022-09-16 11:49:21,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 228 transitions, 710 flow [2022-09-16 11:49:21,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 228 transitions, 692 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-09-16 11:49:21,484 INFO L231 Difference]: Finished difference. Result has 199 places, 188 transitions, 407 flow [2022-09-16 11:49:21,486 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=407, PETRI_PLACES=199, PETRI_TRANSITIONS=188} [2022-09-16 11:49:21,489 INFO L287 CegarLoopForPetriNet]: 202 programPoint places, -3 predicate places. [2022-09-16 11:49:21,489 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 188 transitions, 407 flow [2022-09-16 11:49:21,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 142.6) internal successors, (713), 5 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:49:21,490 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:49:21,490 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:49:21,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:49:21,490 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2022-09-16 11:49:21,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:49:21,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1682171444, now seen corresponding path program 1 times [2022-09-16 11:49:21,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:49:21,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138928344] [2022-09-16 11:49:21,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:49:21,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:49:21,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:49:21,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:49:21,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:49:21,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138928344] [2022-09-16 11:49:21,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138928344] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:49:21,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:49:21,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-16 11:49:21,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988972406] [2022-09-16 11:49:21,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:49:21,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-09-16 11:49:21,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:49:21,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-09-16 11:49:21,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-09-16 11:49:21,721 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 217 [2022-09-16 11:49:21,724 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 188 transitions, 407 flow. Second operand has 8 states, 8 states have (on average 130.125) internal successors, (1041), 8 states have internal predecessors, (1041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:49:21,725 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:49:21,725 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 217 [2022-09-16 11:49:21,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:50:15,106 INFO L130 PetriNetUnfolder]: 222310/342828 cut-off events. [2022-09-16 11:50:15,107 INFO L131 PetriNetUnfolder]: For 12414/12414 co-relation queries the response was YES. [2022-09-16 11:50:16,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 675371 conditions, 342828 events. 222310/342828 cut-off events. For 12414/12414 co-relation queries the response was YES. Maximal size of possible extension queue 7043. Compared 3210266 event pairs, 89426 based on Foata normal form. 0/293827 useless extension candidates. Maximal degree in co-relation 396032. Up to 215060 conditions per place. [2022-09-16 11:50:18,160 INFO L137 encePairwiseOnDemand]: 194/217 looper letters, 193 selfloop transitions, 31 changer transitions 2/335 dead transitions. [2022-09-16 11:50:18,161 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 335 transitions, 1195 flow [2022-09-16 11:50:18,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 11:50:18,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-09-16 11:50:18,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1253 transitions. [2022-09-16 11:50:18,165 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7217741935483871 [2022-09-16 11:50:18,165 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1253 transitions. [2022-09-16 11:50:18,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1253 transitions. [2022-09-16 11:50:18,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:50:18,166 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1253 transitions. [2022-09-16 11:50:18,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 156.625) internal successors, (1253), 8 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:50:18,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 217.0) internal successors, (1953), 9 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:50:18,173 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 217.0) internal successors, (1953), 9 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:50:18,173 INFO L175 Difference]: Start difference. First operand has 199 places, 188 transitions, 407 flow. Second operand 8 states and 1253 transitions. [2022-09-16 11:50:18,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 335 transitions, 1195 flow [2022-09-16 11:50:18,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 335 transitions, 1181 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-16 11:50:18,183 INFO L231 Difference]: Finished difference. Result has 205 places, 213 transitions, 611 flow [2022-09-16 11:50:18,183 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=611, PETRI_PLACES=205, PETRI_TRANSITIONS=213} [2022-09-16 11:50:18,184 INFO L287 CegarLoopForPetriNet]: 202 programPoint places, 3 predicate places. [2022-09-16 11:50:18,184 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 213 transitions, 611 flow [2022-09-16 11:50:18,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 130.125) internal successors, (1041), 8 states have internal predecessors, (1041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:50:18,185 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:50:18,185 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:50:18,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:50:18,186 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2022-09-16 11:50:18,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:50:18,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1850760356, now seen corresponding path program 1 times [2022-09-16 11:50:18,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:50:18,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848074737] [2022-09-16 11:50:18,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:50:18,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:50:18,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:50:18,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:50:18,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:50:18,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848074737] [2022-09-16 11:50:18,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848074737] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:50:18,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:50:18,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-16 11:50:18,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000920821] [2022-09-16 11:50:18,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:50:18,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-09-16 11:50:18,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:50:18,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-09-16 11:50:18,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-09-16 11:50:18,340 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 217 [2022-09-16 11:50:18,341 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 213 transitions, 611 flow. Second operand has 8 states, 8 states have (on average 130.25) internal successors, (1042), 8 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:50:18,341 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:50:18,341 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 217 [2022-09-16 11:50:18,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand