/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.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 17:56:52,711 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 17:56:52,774 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 17:56:52,778 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 17:56:52,778 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 17:56:52,798 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 17:56:52,799 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 17:56:52,799 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 17:56:52,799 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 17:56:52,800 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 17:56:52,800 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 17:56:52,801 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 17:56:52,801 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 17:56:52,801 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 17:56:52,802 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 17:56:52,802 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 17:56:52,802 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 17:56:52,803 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 17:56:52,803 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 17:56:52,803 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 17:56:52,804 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 17:56:52,804 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 17:56:52,805 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 17:56:52,805 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 17:56:52,805 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 17:56:52,806 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 17:56:52,806 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 17:56:52,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:56:52,807 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 17:56:52,807 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 17:56:52,807 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 17:56:52,808 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 17:56:52,808 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 17:56:52,808 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 17:56:52,809 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 17:56:52,809 INFO L153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 17:56:53,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 17:56:53,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 17:56:53,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 17:56:53,178 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 17:56:53,178 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 17:56:53,180 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2023-08-25 17:56:54,474 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 17:56:54,714 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 17:56:54,715 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2023-08-25 17:56:54,734 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b74d11c8d/5e5c8611f29e46799de72927750e0912/FLAG8e4a81e0a [2023-08-25 17:56:54,751 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b74d11c8d/5e5c8611f29e46799de72927750e0912 [2023-08-25 17:56:54,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 17:56:54,757 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 17:56:54,758 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 17:56:54,758 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 17:56:54,761 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 17:56:54,762 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:56:54" (1/1) ... [2023-08-25 17:56:54,763 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f8517fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:54, skipping insertion in model container [2023-08-25 17:56:54,763 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:56:54" (1/1) ... [2023-08-25 17:56:54,815 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 17:56:55,090 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:56:55,104 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 17:56:55,133 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [231] [2023-08-25 17:56:55,145 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-25 17:56:55,159 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:56:55,196 INFO L206 MainTranslator]: Completed translation [2023-08-25 17:56:55,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:55 WrapperNode [2023-08-25 17:56:55,198 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 17:56:55,200 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 17:56:55,200 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 17:56:55,200 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 17:56:55,206 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:55" (1/1) ... [2023-08-25 17:56:55,237 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:55" (1/1) ... [2023-08-25 17:56:55,266 INFO L138 Inliner]: procedures = 162, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2023-08-25 17:56:55,266 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 17:56:55,267 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 17:56:55,267 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 17:56:55,267 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 17:56:55,274 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:55" (1/1) ... [2023-08-25 17:56:55,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:55" (1/1) ... [2023-08-25 17:56:55,282 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:55" (1/1) ... [2023-08-25 17:56:55,282 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:55" (1/1) ... [2023-08-25 17:56:55,297 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:55" (1/1) ... [2023-08-25 17:56:55,298 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:55" (1/1) ... [2023-08-25 17:56:55,299 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:55" (1/1) ... [2023-08-25 17:56:55,300 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:55" (1/1) ... [2023-08-25 17:56:55,302 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 17:56:55,303 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 17:56:55,303 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 17:56:55,303 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 17:56:55,304 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:55" (1/1) ... [2023-08-25 17:56:55,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:56:55,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 17:56:55,342 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) [2023-08-25 17:56:55,347 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 [2023-08-25 17:56:55,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 17:56:55,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 17:56:55,377 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 17:56:55,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 17:56:55,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 17:56:55,378 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 17:56:55,378 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 17:56:55,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 17:56:55,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 17:56:55,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 17:56:55,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 17:56:55,379 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 17:56:55,524 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 17:56:55,529 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 17:56:55,663 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 17:56:55,669 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 17:56:55,670 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 17:56:55,671 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:56:55 BoogieIcfgContainer [2023-08-25 17:56:55,671 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 17:56:55,673 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 17:56:55,674 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 17:56:55,676 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 17:56:55,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:56:54" (1/3) ... [2023-08-25 17:56:55,677 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c8e90dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:56:55, skipping insertion in model container [2023-08-25 17:56:55,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:55" (2/3) ... [2023-08-25 17:56:55,677 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c8e90dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:56:55, skipping insertion in model container [2023-08-25 17:56:55,678 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:56:55" (3/3) ... [2023-08-25 17:56:55,679 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_pos.i [2023-08-25 17:56:55,694 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 17:56:55,694 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-08-25 17:56:55,694 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 17:56:55,742 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-25 17:56:55,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 90 places, 88 transitions, 184 flow [2023-08-25 17:56:55,811 INFO L124 PetriNetUnfolderBase]: 2/87 cut-off events. [2023-08-25 17:56:55,811 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 17:56:55,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 87 events. 2/87 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2023-08-25 17:56:55,815 INFO L82 GeneralOperation]: Start removeDead. Operand has 90 places, 88 transitions, 184 flow [2023-08-25 17:56:55,819 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 80 transitions, 163 flow [2023-08-25 17:56:55,822 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 17:56:55,830 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 80 transitions, 163 flow [2023-08-25 17:56:55,833 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 80 transitions, 163 flow [2023-08-25 17:56:55,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 80 transitions, 163 flow [2023-08-25 17:56:55,854 INFO L124 PetriNetUnfolderBase]: 2/80 cut-off events. [2023-08-25 17:56:55,855 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:56:55,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 80 events. 2/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2023-08-25 17:56:55,857 INFO L119 LiptonReduction]: Number of co-enabled transitions 1296 [2023-08-25 17:56:58,385 INFO L134 LiptonReduction]: Checked pairs total: 4239 [2023-08-25 17:56:58,386 INFO L136 LiptonReduction]: Total number of compositions: 62 [2023-08-25 17:56:58,397 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 17:56:58,409 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;@32cd95d4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 17:56:58,409 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-25 17:56:58,412 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 17:56:58,412 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-08-25 17:56:58,412 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:56:58,412 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:56:58,412 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 17:56:58,413 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-25 17:56:58,417 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:56:58,417 INFO L85 PathProgramCache]: Analyzing trace with hash 287261771, now seen corresponding path program 1 times [2023-08-25 17:56:58,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:56:58,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988861930] [2023-08-25 17:56:58,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:56:58,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:56:58,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:56:58,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:56:58,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:56:58,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988861930] [2023-08-25 17:56:58,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988861930] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:56:58,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:56:58,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:56:58,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878642628] [2023-08-25 17:56:58,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:56:58,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:56:58,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:56:58,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:56:58,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:56:58,682 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 150 [2023-08-25 17:56:58,685 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 27 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:56:58,685 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:56:58,685 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 150 [2023-08-25 17:56:58,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:56:58,834 INFO L124 PetriNetUnfolderBase]: 162/387 cut-off events. [2023-08-25 17:56:58,835 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:56:58,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 756 conditions, 387 events. 162/387 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1930 event pairs, 18 based on Foata normal form. 21/298 useless extension candidates. Maximal degree in co-relation 747. Up to 188 conditions per place. [2023-08-25 17:56:58,839 INFO L140 encePairwiseOnDemand]: 144/150 looper letters, 37 selfloop transitions, 4 changer transitions 0/44 dead transitions. [2023-08-25 17:56:58,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 44 transitions, 173 flow [2023-08-25 17:56:58,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:56:58,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:56:58,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 266 transitions. [2023-08-25 17:56:58,851 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5911111111111111 [2023-08-25 17:56:58,851 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 266 transitions. [2023-08-25 17:56:58,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 266 transitions. [2023-08-25 17:56:58,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:56:58,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 266 transitions. [2023-08-25 17:56:58,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:56:58,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:56:58,861 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:56:58,862 INFO L175 Difference]: Start difference. First operand has 30 places, 27 transitions, 57 flow. Second operand 3 states and 266 transitions. [2023-08-25 17:56:58,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 44 transitions, 173 flow [2023-08-25 17:56:58,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 44 transitions, 172 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:56:58,866 INFO L231 Difference]: Finished difference. Result has 33 places, 29 transitions, 84 flow [2023-08-25 17:56:58,867 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=33, PETRI_TRANSITIONS=29} [2023-08-25 17:56:58,870 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 3 predicate places. [2023-08-25 17:56:58,870 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 29 transitions, 84 flow [2023-08-25 17:56:58,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:56:58,870 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:56:58,870 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 17:56:58,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 17:56:58,871 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-25 17:56:58,871 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:56:58,871 INFO L85 PathProgramCache]: Analyzing trace with hash 315180610, now seen corresponding path program 1 times [2023-08-25 17:56:58,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:56:58,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738276458] [2023-08-25 17:56:58,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:56:58,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:56:58,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:56:58,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:56:58,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:56:58,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738276458] [2023-08-25 17:56:58,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738276458] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:56:58,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:56:58,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 17:56:58,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598207021] [2023-08-25 17:56:58,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:56:58,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:56:58,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:56:58,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:56:58,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:56:58,992 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 150 [2023-08-25 17:56:58,992 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 29 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:56:58,992 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:56:58,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 150 [2023-08-25 17:56:58,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:56:59,055 INFO L124 PetriNetUnfolderBase]: 96/282 cut-off events. [2023-08-25 17:56:59,055 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2023-08-25 17:56:59,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 579 conditions, 282 events. 96/282 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1430 event pairs, 57 based on Foata normal form. 0/242 useless extension candidates. Maximal degree in co-relation 569. Up to 121 conditions per place. [2023-08-25 17:56:59,060 INFO L140 encePairwiseOnDemand]: 145/150 looper letters, 23 selfloop transitions, 3 changer transitions 0/35 dead transitions. [2023-08-25 17:56:59,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 35 transitions, 152 flow [2023-08-25 17:56:59,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:56:59,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:56:59,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2023-08-25 17:56:59,065 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5866666666666667 [2023-08-25 17:56:59,066 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 264 transitions. [2023-08-25 17:56:59,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 264 transitions. [2023-08-25 17:56:59,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:56:59,066 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 264 transitions. [2023-08-25 17:56:59,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:56:59,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:56:59,071 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:56:59,071 INFO L175 Difference]: Start difference. First operand has 33 places, 29 transitions, 84 flow. Second operand 3 states and 264 transitions. [2023-08-25 17:56:59,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 35 transitions, 152 flow [2023-08-25 17:56:59,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 35 transitions, 142 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 17:56:59,073 INFO L231 Difference]: Finished difference. Result has 34 places, 29 transitions, 89 flow [2023-08-25 17:56:59,073 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=89, PETRI_PLACES=34, PETRI_TRANSITIONS=29} [2023-08-25 17:56:59,074 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 4 predicate places. [2023-08-25 17:56:59,074 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 29 transitions, 89 flow [2023-08-25 17:56:59,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:56:59,075 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:56:59,075 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:56:59,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 17:56:59,076 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-25 17:56:59,078 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:56:59,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1156274858, now seen corresponding path program 1 times [2023-08-25 17:56:59,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:56:59,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794445738] [2023-08-25 17:56:59,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:56:59,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:56:59,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:56:59,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:56:59,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:56:59,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794445738] [2023-08-25 17:56:59,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794445738] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:56:59,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:56:59,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:56:59,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205553992] [2023-08-25 17:56:59,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:56:59,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:56:59,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:56:59,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:56:59,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:56:59,127 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 150 [2023-08-25 17:56:59,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 29 transitions, 89 flow. Second operand has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:56:59,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:56:59,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 150 [2023-08-25 17:56:59,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:56:59,196 INFO L124 PetriNetUnfolderBase]: 136/349 cut-off events. [2023-08-25 17:56:59,197 INFO L125 PetriNetUnfolderBase]: For 70/73 co-relation queries the response was YES. [2023-08-25 17:56:59,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 790 conditions, 349 events. 136/349 cut-off events. For 70/73 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1655 event pairs, 95 based on Foata normal form. 0/280 useless extension candidates. Maximal degree in co-relation 778. Up to 298 conditions per place. [2023-08-25 17:56:59,199 INFO L140 encePairwiseOnDemand]: 146/150 looper letters, 33 selfloop transitions, 4 changer transitions 0/40 dead transitions. [2023-08-25 17:56:59,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 40 transitions, 195 flow [2023-08-25 17:56:59,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:56:59,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:56:59,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 251 transitions. [2023-08-25 17:56:59,200 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5577777777777778 [2023-08-25 17:56:59,200 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 251 transitions. [2023-08-25 17:56:59,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 251 transitions. [2023-08-25 17:56:59,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:56:59,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 251 transitions. [2023-08-25 17:56:59,201 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) [2023-08-25 17:56:59,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:56:59,203 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:56:59,203 INFO L175 Difference]: Start difference. First operand has 34 places, 29 transitions, 89 flow. Second operand 3 states and 251 transitions. [2023-08-25 17:56:59,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 40 transitions, 195 flow [2023-08-25 17:56:59,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 40 transitions, 189 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 17:56:59,205 INFO L231 Difference]: Finished difference. Result has 35 places, 31 transitions, 107 flow [2023-08-25 17:56:59,205 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=107, PETRI_PLACES=35, PETRI_TRANSITIONS=31} [2023-08-25 17:56:59,206 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2023-08-25 17:56:59,206 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 31 transitions, 107 flow [2023-08-25 17:56:59,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:56:59,206 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:56:59,206 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:56:59,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 17:56:59,207 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-25 17:56:59,207 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:56:59,207 INFO L85 PathProgramCache]: Analyzing trace with hash -2054148421, now seen corresponding path program 1 times [2023-08-25 17:56:59,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:56:59,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440953553] [2023-08-25 17:56:59,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:56:59,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:56:59,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:56:59,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:56:59,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:56:59,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440953553] [2023-08-25 17:56:59,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440953553] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:56:59,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:56:59,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:56:59,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500849796] [2023-08-25 17:56:59,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:56:59,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:56:59,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:56:59,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:56:59,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:56:59,355 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 150 [2023-08-25 17:56:59,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 31 transitions, 107 flow. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:56:59,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:56:59,355 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 150 [2023-08-25 17:56:59,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:56:59,407 INFO L124 PetriNetUnfolderBase]: 84/244 cut-off events. [2023-08-25 17:56:59,407 INFO L125 PetriNetUnfolderBase]: For 102/107 co-relation queries the response was YES. [2023-08-25 17:56:59,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 566 conditions, 244 events. 84/244 cut-off events. For 102/107 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1169 event pairs, 34 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 554. Up to 131 conditions per place. [2023-08-25 17:56:59,409 INFO L140 encePairwiseOnDemand]: 148/150 looper letters, 26 selfloop transitions, 1 changer transitions 2/39 dead transitions. [2023-08-25 17:56:59,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 39 transitions, 192 flow [2023-08-25 17:56:59,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:56:59,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:56:59,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 239 transitions. [2023-08-25 17:56:59,410 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5311111111111111 [2023-08-25 17:56:59,410 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 239 transitions. [2023-08-25 17:56:59,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 239 transitions. [2023-08-25 17:56:59,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:56:59,411 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 239 transitions. [2023-08-25 17:56:59,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:56:59,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:56:59,413 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:56:59,413 INFO L175 Difference]: Start difference. First operand has 35 places, 31 transitions, 107 flow. Second operand 3 states and 239 transitions. [2023-08-25 17:56:59,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 39 transitions, 192 flow [2023-08-25 17:56:59,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 39 transitions, 186 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:56:59,415 INFO L231 Difference]: Finished difference. Result has 35 places, 30 transitions, 103 flow [2023-08-25 17:56:59,415 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=103, PETRI_PLACES=35, PETRI_TRANSITIONS=30} [2023-08-25 17:56:59,416 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2023-08-25 17:56:59,416 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 30 transitions, 103 flow [2023-08-25 17:56:59,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:56:59,416 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:56:59,416 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:56:59,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 17:56:59,417 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-25 17:56:59,417 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:56:59,417 INFO L85 PathProgramCache]: Analyzing trace with hash 796474464, now seen corresponding path program 1 times [2023-08-25 17:56:59,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:56:59,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828648503] [2023-08-25 17:56:59,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:56:59,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:56:59,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:56:59,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:56:59,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:56:59,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828648503] [2023-08-25 17:56:59,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828648503] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:56:59,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:56:59,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 17:56:59,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120539266] [2023-08-25 17:56:59,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:56:59,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 17:56:59,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:56:59,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 17:56:59,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-25 17:56:59,511 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 150 [2023-08-25 17:56:59,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 103 flow. Second operand has 5 states, 5 states have (on average 64.4) internal successors, (322), 5 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:56:59,511 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:56:59,511 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 150 [2023-08-25 17:56:59,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:56:59,588 INFO L124 PetriNetUnfolderBase]: 23/98 cut-off events. [2023-08-25 17:56:59,588 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2023-08-25 17:56:59,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227 conditions, 98 events. 23/98 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 273 event pairs, 7 based on Foata normal form. 14/111 useless extension candidates. Maximal degree in co-relation 215. Up to 53 conditions per place. [2023-08-25 17:56:59,589 INFO L140 encePairwiseOnDemand]: 143/150 looper letters, 12 selfloop transitions, 6 changer transitions 5/28 dead transitions. [2023-08-25 17:56:59,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 28 transitions, 133 flow [2023-08-25 17:56:59,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 17:56:59,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 17:56:59,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 277 transitions. [2023-08-25 17:56:59,592 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46166666666666667 [2023-08-25 17:56:59,592 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 277 transitions. [2023-08-25 17:56:59,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 277 transitions. [2023-08-25 17:56:59,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:56:59,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 277 transitions. [2023-08-25 17:56:59,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 69.25) internal successors, (277), 4 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:56:59,594 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 150.0) internal successors, (750), 5 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:56:59,595 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 150.0) internal successors, (750), 5 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:56:59,595 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 103 flow. Second operand 4 states and 277 transitions. [2023-08-25 17:56:59,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 28 transitions, 133 flow [2023-08-25 17:56:59,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 28 transitions, 122 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-25 17:56:59,599 INFO L231 Difference]: Finished difference. Result has 33 places, 21 transitions, 72 flow [2023-08-25 17:56:59,599 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=72, PETRI_PLACES=33, PETRI_TRANSITIONS=21} [2023-08-25 17:56:59,601 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 3 predicate places. [2023-08-25 17:56:59,601 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 21 transitions, 72 flow [2023-08-25 17:56:59,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 64.4) internal successors, (322), 5 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:56:59,602 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:56:59,602 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:56:59,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 17:56:59,602 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-25 17:56:59,603 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:56:59,603 INFO L85 PathProgramCache]: Analyzing trace with hash 493760881, now seen corresponding path program 1 times [2023-08-25 17:56:59,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:56:59,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298013338] [2023-08-25 17:56:59,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:56:59,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:56:59,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 17:56:59,631 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 17:56:59,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 17:56:59,669 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 17:56:59,669 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 17:56:59,670 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (7 of 8 remaining) [2023-08-25 17:56:59,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2023-08-25 17:56:59,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2023-08-25 17:56:59,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2023-08-25 17:56:59,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2023-08-25 17:56:59,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2023-08-25 17:56:59,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2023-08-25 17:56:59,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2023-08-25 17:56:59,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 17:56:59,677 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-08-25 17:56:59,683 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 17:56:59,683 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 17:56:59,723 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 05:56:59 BasicIcfg [2023-08-25 17:56:59,723 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 17:56:59,724 INFO L158 Benchmark]: Toolchain (without parser) took 4966.08ms. Allocated memory was 346.0MB in the beginning and 532.7MB in the end (delta: 186.6MB). Free memory was 302.8MB in the beginning and 489.6MB in the end (delta: -186.8MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 17:56:59,726 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 346.0MB. Free memory was 323.7MB in the beginning and 323.6MB in the end (delta: 91.8kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 17:56:59,726 INFO L158 Benchmark]: CACSL2BoogieTranslator took 440.40ms. Allocated memory is still 346.0MB. Free memory was 301.8MB in the beginning and 282.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 17:56:59,728 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.97ms. Allocated memory is still 346.0MB. Free memory was 282.9MB in the beginning and 280.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 17:56:59,728 INFO L158 Benchmark]: Boogie Preprocessor took 35.65ms. Allocated memory is still 346.0MB. Free memory was 280.8MB in the beginning and 279.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 17:56:59,729 INFO L158 Benchmark]: RCFGBuilder took 368.34ms. Allocated memory is still 346.0MB. Free memory was 279.8MB in the beginning and 265.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-25 17:56:59,733 INFO L158 Benchmark]: TraceAbstraction took 4049.41ms. Allocated memory was 346.0MB in the beginning and 532.7MB in the end (delta: 186.6MB). Free memory was 264.0MB in the beginning and 489.6MB in the end (delta: -225.6MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 17:56:59,735 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 346.0MB. Free memory was 323.7MB in the beginning and 323.6MB in the end (delta: 91.8kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 440.40ms. Allocated memory is still 346.0MB. Free memory was 301.8MB in the beginning and 282.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 66.97ms. Allocated memory is still 346.0MB. Free memory was 282.9MB in the beginning and 280.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 35.65ms. Allocated memory is still 346.0MB. Free memory was 280.8MB in the beginning and 279.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 368.34ms. Allocated memory is still 346.0MB. Free memory was 279.8MB in the beginning and 265.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 4049.41ms. Allocated memory was 346.0MB in the beginning and 532.7MB in the end (delta: 186.6MB). Free memory was 264.0MB in the beginning and 489.6MB in the end (delta: -225.6MB). There was no memory consumed. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 231]: Unsoundness Warning unspecified type, defaulting to int C: short [231] - GenericResultAtLocation [Line: 232]: Unsoundness Warning unspecified type, defaulting to int C: short [232] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.6s, 82 PlacesBefore, 30 PlacesAfterwards, 80 TransitionsBefore, 27 TransitionsAfterwards, 1296 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 62 TotalNumberOfCompositions, 4239 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1950, independent: 1701, independent conditional: 0, independent unconditional: 1701, dependent: 249, dependent conditional: 0, dependent unconditional: 249, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 675, independent: 639, independent conditional: 0, independent unconditional: 639, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1950, independent: 1062, independent conditional: 0, independent unconditional: 1062, dependent: 213, dependent conditional: 0, dependent unconditional: 213, unknown: 675, unknown conditional: 0, unknown unconditional: 675] , Statistics on independence cache: Total cache size (in pairs): 87, Positive cache size: 66, Positive conditional cache size: 0, Positive unconditional cache size: 66, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 18]: assertion can be violated assertion can be violated We found a FailurePath: [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={5:0}, mutex1={3:0}, mutex2={4:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L687] 1 glob1 = 5 VAL [arg={0:0}, arg={0:0}, glob1=5, mutex1={3:0}, mutex2={4:0}] [L699] EXPR 0 glob1 == 0 [L699] CALL 0 __VERIFIER_assert(glob1 == 0) [L19] COND TRUE 0 !(cond) [L19] CALL 0 reach_error() [L18] COND FALSE 0 !(0) [L18] 0 __assert_fail ("0", "13-privatized_19-publish-precision_unknown_1_pos.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [arg={0:0}, arg={0:0}, glob1=5, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: 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: 687]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 113 locations, 8 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: 3.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 66 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 66 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 211 IncrementalHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 10 mSDtfsCounter, 211 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=3, InterpolantAutomatonStates: 16, 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, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 89 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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! [2023-08-25 17:56:59,751 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...