/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-PN-VariableLbe.epf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 01:28:52,007 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 01:28:52,009 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 01:28:52,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-01-28 01:28:52,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 01:28:52,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 01:28:52,045 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 01:28:52,045 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 01:28:52,046 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 01:28:52,047 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 01:28:52,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 01:28:52,049 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 01:28:52,050 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 01:28:52,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 01:28:52,058 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 01:28:52,059 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 01:28:52,065 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-28 01:28:52,067 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 01:28:52,068 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 01:28:52,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 01:28:52,069 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 01:28:52,070 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 01:28:52,070 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 01:28:52,070 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 01:28:52,071 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 01:28:52,071 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 01:28:52,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 01:28:52,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 01:28:52,077 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-VariableLbe.epf [2023-01-28 01:28:52,107 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 01:28:52,108 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 01:28:52,109 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 01:28:52,109 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 01:28:52,110 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 01:28:52,110 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 01:28:52,110 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 01:28:52,110 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 01:28:52,110 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 01:28:52,110 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 01:28:52,111 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 01:28:52,111 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 01:28:52,111 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 01:28:52,111 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 01:28:52,111 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 01:28:52,112 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 01:28:52,112 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 01:28:52,112 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 01:28:52,112 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 01:28:52,112 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 01:28:52,112 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 01:28:52,112 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 01:28:52,112 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 01:28:52,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 01:28:52,113 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 01:28:52,113 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 01:28:52,113 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 01:28:52,113 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 01:28:52,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 01:28:52,114 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 01:28:52,114 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 01:28:52,114 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-01-28 01:28:52,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 01:28:52,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 01:28:52,326 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 01:28:52,326 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 01:28:52,329 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 01:28:52,330 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_true.i [2023-01-28 01:28:53,430 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 01:28:53,664 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 01:28:53,664 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_true.i [2023-01-28 01:28:53,687 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bfcd476f/53e3305cc1af465fafee2faed40a7a65/FLAGb350f0e84 [2023-01-28 01:28:53,699 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bfcd476f/53e3305cc1af465fafee2faed40a7a65 [2023-01-28 01:28:53,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 01:28:53,703 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 01:28:53,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 01:28:53,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 01:28:53,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 01:28:53,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 01:28:53" (1/1) ... [2023-01-28 01:28:53,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ae1f1d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:28:53, skipping insertion in model container [2023-01-28 01:28:53,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 01:28:53" (1/1) ... [2023-01-28 01:28:53,714 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 01:28:53,765 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 01:28:53,948 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_true.i[1094,1107] [2023-01-28 01:28:54,283 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 01:28:54,295 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 01:28:54,307 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_true.i[1094,1107] [2023-01-28 01:28:54,354 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 01:28:54,425 WARN L667 CHandler]: The function sleep is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 01:28:54,431 INFO L208 MainTranslator]: Completed translation [2023-01-28 01:28:54,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:28:54 WrapperNode [2023-01-28 01:28:54,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 01:28:54,433 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 01:28:54,433 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 01:28:54,433 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 01:28:54,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:28:54" (1/1) ... [2023-01-28 01:28:54,468 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:28:54" (1/1) ... [2023-01-28 01:28:54,502 INFO L138 Inliner]: procedures = 354, calls = 38, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 79 [2023-01-28 01:28:54,503 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 01:28:54,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 01:28:54,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 01:28:54,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 01:28:54,510 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:28:54" (1/1) ... [2023-01-28 01:28:54,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:28:54" (1/1) ... [2023-01-28 01:28:54,522 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:28:54" (1/1) ... [2023-01-28 01:28:54,522 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:28:54" (1/1) ... [2023-01-28 01:28:54,531 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:28:54" (1/1) ... [2023-01-28 01:28:54,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:28:54" (1/1) ... [2023-01-28 01:28:54,535 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:28:54" (1/1) ... [2023-01-28 01:28:54,537 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:28:54" (1/1) ... [2023-01-28 01:28:54,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 01:28:54,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 01:28:54,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 01:28:54,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 01:28:54,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:28:54" (1/1) ... [2023-01-28 01:28:54,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 01:28:54,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 01:28:54,578 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) [2023-01-28 01:28:54,579 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 [2023-01-28 01:28:54,612 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2023-01-28 01:28:54,613 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2023-01-28 01:28:54,613 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2023-01-28 01:28:54,613 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2023-01-28 01:28:54,613 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2023-01-28 01:28:54,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 01:28:54,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 01:28:54,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 01:28:54,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 01:28:54,615 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-28 01:28:54,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 01:28:54,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 01:28:54,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 01:28:54,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 01:28:54,616 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 01:28:54,972 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 01:28:54,974 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 01:28:55,102 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 01:28:55,108 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 01:28:55,108 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 01:28:55,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 01:28:55 BoogieIcfgContainer [2023-01-28 01:28:55,110 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 01:28:55,112 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 01:28:55,112 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 01:28:55,114 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 01:28:55,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 01:28:53" (1/3) ... [2023-01-28 01:28:55,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4af6527f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 01:28:55, skipping insertion in model container [2023-01-28 01:28:55,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:28:54" (2/3) ... [2023-01-28 01:28:55,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4af6527f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 01:28:55, skipping insertion in model container [2023-01-28 01:28:55,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 01:28:55" (3/3) ... [2023-01-28 01:28:55,117 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_true.i [2023-01-28 01:28:55,131 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 01:28:55,131 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 01:28:55,131 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 01:28:55,188 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-28 01:28:55,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 88 transitions, 192 flow [2023-01-28 01:28:55,272 INFO L130 PetriNetUnfolder]: 1/86 cut-off events. [2023-01-28 01:28:55,273 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 01:28:55,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 86 events. 1/86 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 55 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 65. Up to 2 conditions per place. [2023-01-28 01:28:55,277 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 88 transitions, 192 flow [2023-01-28 01:28:55,281 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 66 transitions, 138 flow [2023-01-28 01:28:55,284 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 01:28:55,297 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 66 transitions, 138 flow [2023-01-28 01:28:55,303 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 66 transitions, 138 flow [2023-01-28 01:28:55,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 66 transitions, 138 flow [2023-01-28 01:28:55,329 INFO L130 PetriNetUnfolder]: 0/66 cut-off events. [2023-01-28 01:28:55,329 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 01:28:55,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 66 events. 0/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-01-28 01:28:55,330 INFO L119 LiptonReduction]: Number of co-enabled transitions 474 [2023-01-28 01:28:58,346 INFO L134 LiptonReduction]: Checked pairs total: 956 [2023-01-28 01:28:58,347 INFO L136 LiptonReduction]: Total number of compositions: 53 [2023-01-28 01:28:58,358 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 01:28:58,363 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;@510bfae0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 01:28:58,363 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-01-28 01:28:58,367 INFO L130 PetriNetUnfolder]: 0/11 cut-off events. [2023-01-28 01:28:58,367 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 01:28:58,367 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:28:58,367 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-01-28 01:28:58,368 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting f1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 01:28:58,371 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:28:58,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1675552830, now seen corresponding path program 1 times [2023-01-28 01:28:58,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:28:58,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892401053] [2023-01-28 01:28:58,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:28:58,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:28:58,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 01:28:58,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 01:28:58,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 01:28:58,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892401053] [2023-01-28 01:28:58,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892401053] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 01:28:58,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 01:28:58,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 01:28:58,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899018759] [2023-01-28 01:28:58,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 01:28:58,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 01:28:58,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 01:28:58,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 01:28:58,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 01:28:58,852 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 141 [2023-01-28 01:28:58,854 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 13 transitions, 32 flow. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 01:28:58,854 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 01:28:58,854 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 141 [2023-01-28 01:28:58,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 01:28:58,903 INFO L130 PetriNetUnfolder]: 47/110 cut-off events. [2023-01-28 01:28:58,904 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-28 01:28:58,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224 conditions, 110 events. 47/110 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 377 event pairs, 23 based on Foata normal form. 10/120 useless extension candidates. Maximal degree in co-relation 214. Up to 61 conditions per place. [2023-01-28 01:28:58,905 INFO L137 encePairwiseOnDemand]: 138/141 looper letters, 15 selfloop transitions, 2 changer transitions 2/20 dead transitions. [2023-01-28 01:28:58,906 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 20 transitions, 87 flow [2023-01-28 01:28:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 01:28:58,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 01:28:58,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 251 transitions. [2023-01-28 01:28:58,917 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5933806146572104 [2023-01-28 01:28:58,917 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 251 transitions. [2023-01-28 01:28:58,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 251 transitions. [2023-01-28 01:28:58,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 01:28:58,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 251 transitions. [2023-01-28 01:28:58,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 01:28:58,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 01:28:58,926 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 01:28:58,928 INFO L175 Difference]: Start difference. First operand has 20 places, 13 transitions, 32 flow. Second operand 3 states and 251 transitions. [2023-01-28 01:28:58,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 20 transitions, 87 flow [2023-01-28 01:28:58,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 20 transitions, 84 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 01:28:58,931 INFO L231 Difference]: Finished difference. Result has 21 places, 13 transitions, 38 flow [2023-01-28 01:28:58,933 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=38, PETRI_PLACES=21, PETRI_TRANSITIONS=13} [2023-01-28 01:28:58,935 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, 1 predicate places. [2023-01-28 01:28:58,935 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 13 transitions, 38 flow [2023-01-28 01:28:58,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 01:28:58,936 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:28:58,936 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 01:28:58,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 01:28:58,936 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting f1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 01:28:58,937 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:28:58,937 INFO L85 PathProgramCache]: Analyzing trace with hash -485842887, now seen corresponding path program 1 times [2023-01-28 01:28:58,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:28:58,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038331126] [2023-01-28 01:28:58,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:28:58,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:28:58,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 01:28:59,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 01:28:59,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 01:28:59,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038331126] [2023-01-28 01:28:59,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038331126] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 01:28:59,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 01:28:59,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 01:28:59,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983878258] [2023-01-28 01:28:59,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 01:28:59,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 01:28:59,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 01:28:59,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 01:28:59,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 01:28:59,045 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 141 [2023-01-28 01:28:59,045 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 13 transitions, 38 flow. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 01:28:59,045 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 01:28:59,045 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 141 [2023-01-28 01:28:59,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 01:28:59,092 INFO L130 PetriNetUnfolder]: 18/51 cut-off events. [2023-01-28 01:28:59,093 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-01-28 01:28:59,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 51 events. 18/51 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 111 event pairs, 4 based on Foata normal form. 12/63 useless extension candidates. Maximal degree in co-relation 118. Up to 36 conditions per place. [2023-01-28 01:28:59,094 INFO L137 encePairwiseOnDemand]: 136/141 looper letters, 11 selfloop transitions, 5 changer transitions 0/16 dead transitions. [2023-01-28 01:28:59,094 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 16 transitions, 78 flow [2023-01-28 01:28:59,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 01:28:59,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 01:28:59,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 229 transitions. [2023-01-28 01:28:59,100 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.541371158392435 [2023-01-28 01:28:59,100 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 229 transitions. [2023-01-28 01:28:59,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 229 transitions. [2023-01-28 01:28:59,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 01:28:59,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 229 transitions. [2023-01-28 01:28:59,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 01:28:59,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 01:28:59,103 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 01:28:59,104 INFO L175 Difference]: Start difference. First operand has 21 places, 13 transitions, 38 flow. Second operand 3 states and 229 transitions. [2023-01-28 01:28:59,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 16 transitions, 78 flow [2023-01-28 01:28:59,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 16 transitions, 76 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 01:28:59,104 INFO L231 Difference]: Finished difference. Result has 22 places, 13 transitions, 46 flow [2023-01-28 01:28:59,104 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=22, PETRI_TRANSITIONS=13} [2023-01-28 01:28:59,105 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, 2 predicate places. [2023-01-28 01:28:59,105 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 13 transitions, 46 flow [2023-01-28 01:28:59,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 01:28:59,106 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:28:59,106 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 01:28:59,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 01:28:59,106 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting f1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 01:28:59,107 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:28:59,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1785060460, now seen corresponding path program 1 times [2023-01-28 01:28:59,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:28:59,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136927175] [2023-01-28 01:28:59,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:28:59,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:28:59,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:28:59,138 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 01:28:59,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:28:59,171 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 01:28:59,172 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 01:28:59,173 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location f1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-01-28 01:28:59,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-01-28 01:28:59,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-01-28 01:28:59,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location f1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2023-01-28 01:28:59,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 01:28:59,175 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-01-28 01:28:59,180 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 01:28:59,180 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 01:28:59,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 01:28:59 BasicIcfg [2023-01-28 01:28:59,204 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 01:28:59,205 INFO L158 Benchmark]: Toolchain (without parser) took 5501.54ms. Allocated memory was 352.3MB in the beginning and 427.8MB in the end (delta: 75.5MB). Free memory was 310.3MB in the beginning and 328.6MB in the end (delta: -18.3MB). Peak memory consumption was 58.6MB. Max. memory is 16.0GB. [2023-01-28 01:28:59,205 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 255.9MB. Free memory is still 213.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 01:28:59,205 INFO L158 Benchmark]: CACSL2BoogieTranslator took 727.60ms. Allocated memory is still 352.3MB. Free memory was 310.0MB in the beginning and 272.4MB in the end (delta: 37.6MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. [2023-01-28 01:28:59,206 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.36ms. Allocated memory is still 352.3MB. Free memory was 272.4MB in the beginning and 269.5MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-01-28 01:28:59,206 INFO L158 Benchmark]: Boogie Preprocessor took 38.25ms. Allocated memory is still 352.3MB. Free memory was 269.5MB in the beginning and 267.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 01:28:59,206 INFO L158 Benchmark]: RCFGBuilder took 567.55ms. Allocated memory is still 352.3MB. Free memory was 267.1MB in the beginning and 314.3MB in the end (delta: -47.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-28 01:28:59,207 INFO L158 Benchmark]: TraceAbstraction took 4092.20ms. Allocated memory was 352.3MB in the beginning and 427.8MB in the end (delta: 75.5MB). Free memory was 313.1MB in the beginning and 328.6MB in the end (delta: -15.5MB). Peak memory consumption was 58.6MB. Max. memory is 16.0GB. [2023-01-28 01:28:59,209 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 255.9MB. Free memory is still 213.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 727.60ms. Allocated memory is still 352.3MB. Free memory was 310.0MB in the beginning and 272.4MB in the end (delta: 37.6MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 70.36ms. Allocated memory is still 352.3MB. Free memory was 272.4MB in the beginning and 269.5MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 38.25ms. Allocated memory is still 352.3MB. Free memory was 269.5MB in the beginning and 267.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 567.55ms. Allocated memory is still 352.3MB. Free memory was 267.1MB in the beginning and 314.3MB in the end (delta: -47.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 4092.20ms. Allocated memory was 352.3MB in the beginning and 427.8MB in the end (delta: 75.5MB). Free memory was 313.1MB in the beginning and 328.6MB in the end (delta: -15.5MB). Peak memory consumption was 58.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.0s, 73 PlacesBefore, 20 PlacesAfterwards, 66 TransitionsBefore, 13 TransitionsAfterwards, 474 CoEnabledTransitionPairs, 7 FixpointIterations, 34 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 53 TotalNumberOfCompositions, 956 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 561, independent: 471, independent conditional: 0, independent unconditional: 471, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 254, independent: 239, independent conditional: 0, independent unconditional: 239, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 561, independent: 232, independent conditional: 0, independent unconditional: 232, dependent: 75, dependent conditional: 0, dependent unconditional: 75, unknown: 254, unknown conditional: 0, unknown unconditional: 254] , Statistics on independence cache: Total cache size (in pairs): 25, Positive cache size: 19, Positive conditional cache size: 0, Positive unconditional cache size: 19, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1351] 0 int g; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1353] 0 pthread_cond_t cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }; [L1373] 0 pthread_t t1; [L1374] 0 pthread_t t2; [L1375] FCALL, FORK 0 pthread_create(&t1,((void *)0),f1,((void *)0)) VAL [\old(argc)=1150, argc=1150, argv={1152:1151}, argv={1152:1151}, cond={4:0}, g=0, mut={3:0}, pthread_create(&t1,((void *)0),f1,((void *)0))=0, t1={5:0}, t2={6:0}] [L1356] 1 g = 1 VAL [cond={4:0}, g=1, mut={3:0}, ptr={0:0}, ptr={0:0}] [L1377] FCALL, FORK 0 pthread_create(&t2,((void *)0),f2,((void *)0)) VAL [\old(argc)=1150, argc=1150, argv={1152:1151}, argv={1152:1151}, cond={4:0}, g=1, mut={3:0}, pthread_create(&t2,((void *)0),f2,((void *)0))=1, ptr={0:0}, t1={5:0}, t2={6:0}] [L1366] 2 g = 0 VAL [cond={4:0}, g=0, mut={3:0}, ptr={0:0}, ptr={0:0}] [L1369] 2 return ((void *)0); [L1358] CALL 1 __VERIFIER_assert(g == 1) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, \result={0:0}, cond=0, cond={4:0}, g=0, mut={3:0}, ptr={0:0}, ptr={0:0}] - UnprovableResult [Line: 1375]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1377]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 118 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 53 IncrementalHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 0 mSDtfsCounter, 53 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=2, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 34 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-01-28 01:28:59,228 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...