/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 PROGRAM_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/05-lval_ls_03-fld_rc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 06:58:22,743 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 06:58:22,815 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 [2023-08-26 06:58:22,820 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 06:58:22,821 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 06:58:22,843 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 06:58:22,844 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 06:58:22,844 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 06:58:22,845 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 06:58:22,847 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 06:58:22,848 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 06:58:22,848 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 06:58:22,848 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 06:58:22,849 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 06:58:22,849 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 06:58:22,849 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 06:58:22,849 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 06:58:22,849 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 06:58:22,849 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 06:58:22,850 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 06:58:22,850 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 06:58:22,850 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 06:58:22,850 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 06:58:22,851 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 06:58:22,851 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 06:58:22,851 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 06:58:22,851 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 06:58:22,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 06:58:22,852 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 06:58:22,852 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 06:58:22,852 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 06:58:22,852 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 06:58:22,853 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 06:58:22,853 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 06:58:22,853 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 06:58:22,853 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 06:58:23,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 06:58:23,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 06:58:23,117 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 06:58:23,117 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 06:58:23,117 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 06:58:23,118 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_03-fld_rc.i [2023-08-26 06:58:24,194 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 06:58:24,373 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 06:58:24,374 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/05-lval_ls_03-fld_rc.i [2023-08-26 06:58:24,383 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/969aebd1e/d0812e8d5d5941249b987c1376b82f41/FLAGc2d2e94c7 [2023-08-26 06:58:24,409 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/969aebd1e/d0812e8d5d5941249b987c1376b82f41 [2023-08-26 06:58:24,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 06:58:24,412 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 06:58:24,413 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 06:58:24,413 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 06:58:24,415 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 06:58:24,415 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 06:58:24" (1/1) ... [2023-08-26 06:58:24,416 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@274f1fbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:24, skipping insertion in model container [2023-08-26 06:58:24,416 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 06:58:24" (1/1) ... [2023-08-26 06:58:24,449 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 06:58:24,691 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 06:58:24,701 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 06:58:24,724 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-26 06:58:24,725 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-26 06:58:24,742 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 06:58:24,771 INFO L206 MainTranslator]: Completed translation [2023-08-26 06:58:24,771 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:24 WrapperNode [2023-08-26 06:58:24,771 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 06:58:24,772 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 06:58:24,772 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 06:58:24,772 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 06:58:24,776 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:24" (1/1) ... [2023-08-26 06:58:24,798 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:24" (1/1) ... [2023-08-26 06:58:24,815 INFO L138 Inliner]: procedures = 162, calls = 20, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 45 [2023-08-26 06:58:24,815 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 06:58:24,816 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 06:58:24,817 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 06:58:24,817 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 06:58:24,822 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:24" (1/1) ... [2023-08-26 06:58:24,822 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:24" (1/1) ... [2023-08-26 06:58:24,827 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:24" (1/1) ... [2023-08-26 06:58:24,827 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:24" (1/1) ... [2023-08-26 06:58:24,838 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:24" (1/1) ... [2023-08-26 06:58:24,839 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:24" (1/1) ... [2023-08-26 06:58:24,840 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:24" (1/1) ... [2023-08-26 06:58:24,841 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:24" (1/1) ... [2023-08-26 06:58:24,842 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 06:58:24,843 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 06:58:24,843 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 06:58:24,843 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 06:58:24,843 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:24" (1/1) ... [2023-08-26 06:58:24,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 06:58:24,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 06:58:24,882 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) [2023-08-26 06:58:24,899 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 [2023-08-26 06:58:24,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 06:58:24,910 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 06:58:24,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 06:58:24,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 06:58:24,910 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-26 06:58:24,910 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-26 06:58:24,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 06:58:24,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 06:58:24,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 06:58:24,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 06:58:24,911 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 06:58:24,987 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 06:58:24,988 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 06:58:25,077 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 06:58:25,081 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 06:58:25,081 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 06:58:25,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 06:58:25 BoogieIcfgContainer [2023-08-26 06:58:25,083 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 06:58:25,084 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 06:58:25,084 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 06:58:25,086 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 06:58:25,086 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 06:58:24" (1/3) ... [2023-08-26 06:58:25,087 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73555dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 06:58:25, skipping insertion in model container [2023-08-26 06:58:25,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:24" (2/3) ... [2023-08-26 06:58:25,087 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73555dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 06:58:25, skipping insertion in model container [2023-08-26 06:58:25,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 06:58:25" (3/3) ... [2023-08-26 06:58:25,088 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_03-fld_rc.i [2023-08-26 06:58:25,099 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 06:58:25,099 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-26 06:58:25,099 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 06:58:25,127 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 06:58:25,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 64 transitions, 133 flow [2023-08-26 06:58:25,186 INFO L124 PetriNetUnfolderBase]: 0/63 cut-off events. [2023-08-26 06:58:25,186 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:58:25,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 63 events. 0/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 41 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-26 06:58:25,188 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 64 transitions, 133 flow [2023-08-26 06:58:25,190 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 63 transitions, 129 flow [2023-08-26 06:58:25,193 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 06:58:25,198 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 63 transitions, 129 flow [2023-08-26 06:58:25,200 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 63 transitions, 129 flow [2023-08-26 06:58:25,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 63 transitions, 129 flow [2023-08-26 06:58:25,212 INFO L124 PetriNetUnfolderBase]: 0/63 cut-off events. [2023-08-26 06:58:25,212 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:58:25,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 63 events. 0/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 41 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-26 06:58:25,213 INFO L119 LiptonReduction]: Number of co-enabled transitions 714 [2023-08-26 06:58:26,594 INFO L134 LiptonReduction]: Checked pairs total: 2927 [2023-08-26 06:58:26,594 INFO L136 LiptonReduction]: Total number of compositions: 41 [2023-08-26 06:58:26,610 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 06:58:26,614 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;@1c02431d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 06:58:26,614 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-26 06:58:26,616 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 06:58:26,616 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-08-26 06:58:26,616 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:58:26,617 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:58:26,617 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-26 06:58:26,617 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-26 06:58:26,620 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:58:26,620 INFO L85 PathProgramCache]: Analyzing trace with hash 205828445, now seen corresponding path program 1 times [2023-08-26 06:58:26,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:58:26,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666255252] [2023-08-26 06:58:26,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:58:26,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:58:26,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:58:26,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:58:26,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:58:26,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666255252] [2023-08-26 06:58:26,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666255252] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:58:26,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:58:26,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 06:58:26,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646992426] [2023-08-26 06:58:26,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:58:26,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 06:58:26,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:58:26,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 06:58:26,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 06:58:26,850 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 105 [2023-08-26 06:58:26,851 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 22 transitions, 47 flow. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:26,851 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:58:26,851 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 105 [2023-08-26 06:58:26,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:58:26,920 INFO L124 PetriNetUnfolderBase]: 67/184 cut-off events. [2023-08-26 06:58:26,920 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:58:26,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 345 conditions, 184 events. 67/184 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 803 event pairs, 33 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 336. Up to 101 conditions per place. [2023-08-26 06:58:26,923 INFO L140 encePairwiseOnDemand]: 97/105 looper letters, 26 selfloop transitions, 6 changer transitions 0/36 dead transitions. [2023-08-26 06:58:26,923 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 36 transitions, 139 flow [2023-08-26 06:58:26,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 06:58:26,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 06:58:26,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 187 transitions. [2023-08-26 06:58:26,931 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5936507936507937 [2023-08-26 06:58:26,932 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 187 transitions. [2023-08-26 06:58:26,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 187 transitions. [2023-08-26 06:58:26,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:58:26,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 187 transitions. [2023-08-26 06:58:26,936 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:26,938 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:26,938 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:26,939 INFO L175 Difference]: Start difference. First operand has 26 places, 22 transitions, 47 flow. Second operand 3 states and 187 transitions. [2023-08-26 06:58:26,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 36 transitions, 139 flow [2023-08-26 06:58:26,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 36 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 06:58:26,942 INFO L231 Difference]: Finished difference. Result has 29 places, 28 transitions, 98 flow [2023-08-26 06:58:26,943 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=29, PETRI_TRANSITIONS=28} [2023-08-26 06:58:26,946 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 3 predicate places. [2023-08-26 06:58:26,946 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 28 transitions, 98 flow [2023-08-26 06:58:26,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:26,946 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:58:26,946 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:58:26,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 06:58:26,947 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-26 06:58:26,947 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:58:26,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1507823310, now seen corresponding path program 1 times [2023-08-26 06:58:26,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:58:26,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045030438] [2023-08-26 06:58:26,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:58:26,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:58:26,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:58:26,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:58:26,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:58:26,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045030438] [2023-08-26 06:58:26,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045030438] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:58:26,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:58:26,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 06:58:26,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333740065] [2023-08-26 06:58:26,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:58:26,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 06:58:26,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:58:26,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 06:58:26,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 06:58:26,988 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 105 [2023-08-26 06:58:26,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 28 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:26,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:58:26,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 105 [2023-08-26 06:58:26,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:58:27,028 INFO L124 PetriNetUnfolderBase]: 71/188 cut-off events. [2023-08-26 06:58:27,029 INFO L125 PetriNetUnfolderBase]: For 105/111 co-relation queries the response was YES. [2023-08-26 06:58:27,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 467 conditions, 188 events. 71/188 cut-off events. For 105/111 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 776 event pairs, 30 based on Foata normal form. 0/164 useless extension candidates. Maximal degree in co-relation 457. Up to 126 conditions per place. [2023-08-26 06:58:27,030 INFO L140 encePairwiseOnDemand]: 99/105 looper letters, 27 selfloop transitions, 7 changer transitions 2/40 dead transitions. [2023-08-26 06:58:27,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 40 transitions, 212 flow [2023-08-26 06:58:27,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 06:58:27,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 06:58:27,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 173 transitions. [2023-08-26 06:58:27,032 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5492063492063493 [2023-08-26 06:58:27,032 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 173 transitions. [2023-08-26 06:58:27,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 173 transitions. [2023-08-26 06:58:27,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:58:27,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 173 transitions. [2023-08-26 06:58:27,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:27,049 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:27,049 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:27,049 INFO L175 Difference]: Start difference. First operand has 29 places, 28 transitions, 98 flow. Second operand 3 states and 173 transitions. [2023-08-26 06:58:27,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 40 transitions, 212 flow [2023-08-26 06:58:27,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 40 transitions, 194 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 06:58:27,051 INFO L231 Difference]: Finished difference. Result has 31 places, 33 transitions, 142 flow [2023-08-26 06:58:27,052 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=31, PETRI_TRANSITIONS=33} [2023-08-26 06:58:27,052 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 5 predicate places. [2023-08-26 06:58:27,052 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 33 transitions, 142 flow [2023-08-26 06:58:27,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:27,053 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:58:27,053 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:58:27,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 06:58:27,053 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-26 06:58:27,053 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:58:27,053 INFO L85 PathProgramCache]: Analyzing trace with hash 233818980, now seen corresponding path program 1 times [2023-08-26 06:58:27,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:58:27,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5114014] [2023-08-26 06:58:27,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:58:27,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:58:27,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:58:27,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:58:27,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:58:27,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5114014] [2023-08-26 06:58:27,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5114014] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:58:27,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:58:27,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 06:58:27,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307684927] [2023-08-26 06:58:27,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:58:27,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 06:58:27,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:58:27,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 06:58:27,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 06:58:27,110 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 105 [2023-08-26 06:58:27,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 33 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:27,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:58:27,111 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 105 [2023-08-26 06:58:27,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:58:27,158 INFO L124 PetriNetUnfolderBase]: 69/194 cut-off events. [2023-08-26 06:58:27,159 INFO L125 PetriNetUnfolderBase]: For 158/170 co-relation queries the response was YES. [2023-08-26 06:58:27,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 542 conditions, 194 events. 69/194 cut-off events. For 158/170 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 827 event pairs, 23 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 531. Up to 120 conditions per place. [2023-08-26 06:58:27,162 INFO L140 encePairwiseOnDemand]: 99/105 looper letters, 24 selfloop transitions, 7 changer transitions 12/47 dead transitions. [2023-08-26 06:58:27,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 47 transitions, 290 flow [2023-08-26 06:58:27,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 06:58:27,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 06:58:27,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 176 transitions. [2023-08-26 06:58:27,175 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5587301587301587 [2023-08-26 06:58:27,175 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 176 transitions. [2023-08-26 06:58:27,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 176 transitions. [2023-08-26 06:58:27,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:58:27,175 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 176 transitions. [2023-08-26 06:58:27,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:27,177 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:27,177 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:27,177 INFO L175 Difference]: Start difference. First operand has 31 places, 33 transitions, 142 flow. Second operand 3 states and 176 transitions. [2023-08-26 06:58:27,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 47 transitions, 290 flow [2023-08-26 06:58:27,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 47 transitions, 268 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 06:58:27,179 INFO L231 Difference]: Finished difference. Result has 33 places, 32 transitions, 160 flow [2023-08-26 06:58:27,179 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=160, PETRI_PLACES=33, PETRI_TRANSITIONS=32} [2023-08-26 06:58:27,180 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2023-08-26 06:58:27,180 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 32 transitions, 160 flow [2023-08-26 06:58:27,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:58:27,180 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:58:27,180 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:58:27,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 06:58:27,181 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-26 06:58:27,181 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:58:27,181 INFO L85 PathProgramCache]: Analyzing trace with hash 367641434, now seen corresponding path program 1 times [2023-08-26 06:58:27,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:58:27,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345595583] [2023-08-26 06:58:27,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:58:27,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:58:27,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 06:58:27,201 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 06:58:27,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 06:58:27,219 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 06:58:27,219 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 06:58:27,220 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-08-26 06:58:27,221 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-08-26 06:58:27,221 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2023-08-26 06:58:27,221 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-08-26 06:58:27,222 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-08-26 06:58:27,222 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-08-26 06:58:27,222 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-08-26 06:58:27,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 06:58:27,222 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-26 06:58:27,226 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 06:58:27,227 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 06:58:27,246 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 06:58:27 BasicIcfg [2023-08-26 06:58:27,246 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 06:58:27,247 INFO L158 Benchmark]: Toolchain (without parser) took 2834.94ms. Allocated memory was 348.1MB in the beginning and 457.2MB in the end (delta: 109.1MB). Free memory was 322.7MB in the beginning and 333.4MB in the end (delta: -10.7MB). Peak memory consumption was 98.9MB. Max. memory is 16.0GB. [2023-08-26 06:58:27,247 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 348.1MB. Free memory is still 324.0MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 06:58:27,247 INFO L158 Benchmark]: CACSL2BoogieTranslator took 358.71ms. Allocated memory is still 348.1MB. Free memory was 322.2MB in the beginning and 303.8MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-26 06:58:27,248 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.55ms. Allocated memory is still 348.1MB. Free memory was 303.3MB in the beginning and 301.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 06:58:27,248 INFO L158 Benchmark]: Boogie Preprocessor took 25.74ms. Allocated memory is still 348.1MB. Free memory was 301.7MB in the beginning and 300.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 06:58:27,249 INFO L158 Benchmark]: RCFGBuilder took 240.08ms. Allocated memory is still 348.1MB. Free memory was 300.2MB in the beginning and 288.2MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-26 06:58:27,249 INFO L158 Benchmark]: TraceAbstraction took 2162.36ms. Allocated memory was 348.1MB in the beginning and 457.2MB in the end (delta: 109.1MB). Free memory was 287.6MB in the beginning and 333.4MB in the end (delta: -45.9MB). Peak memory consumption was 65.3MB. Max. memory is 16.0GB. [2023-08-26 06:58:27,251 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 348.1MB. Free memory is still 324.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 358.71ms. Allocated memory is still 348.1MB. Free memory was 322.2MB in the beginning and 303.8MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 43.55ms. Allocated memory is still 348.1MB. Free memory was 303.3MB in the beginning and 301.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 25.74ms. Allocated memory is still 348.1MB. Free memory was 301.7MB in the beginning and 300.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 240.08ms. Allocated memory is still 348.1MB. Free memory was 300.2MB in the beginning and 288.2MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 2162.36ms. Allocated memory was 348.1MB in the beginning and 457.2MB in the end (delta: 109.1MB). Free memory was 287.6MB in the beginning and 333.4MB in the end (delta: -45.9MB). Peak memory consumption was 65.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.4s, 67 PlacesBefore, 26 PlacesAfterwards, 63 TransitionsBefore, 22 TransitionsAfterwards, 714 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 41 TotalNumberOfCompositions, 2927 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1195, independent: 962, independent conditional: 0, independent unconditional: 962, dependent: 233, dependent conditional: 0, dependent unconditional: 233, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 351, independent: 323, independent conditional: 0, independent unconditional: 323, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1195, independent: 639, independent conditional: 0, independent unconditional: 639, dependent: 205, dependent conditional: 0, dependent unconditional: 205, unknown: 351, unknown conditional: 0, unknown unconditional: 351] , Statistics on independence cache: Total cache size (in pairs): 71, Positive cache size: 56, Positive conditional cache size: 0, Positive unconditional cache size: 56, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 686]: Data race detected Data race detected The following path leads to a data race: [L679] 0 int glob; [L680-L683] 0 struct { pthread_mutex_t x; pthread_mutex_t y; } m; [L693] 0 pthread_t id; [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob=0, id={2:0}, m={1:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L696] 0 glob++ VAL [arg={0:0}, arg={0:0}, glob++=0, glob=1, id={2:0}, m={1:0}, pthread_mutex_lock(&m.x)=0] [L686] 1 glob++ VAL [arg={0:0}, arg={0:0}, glob=1, m={1:0}] [L686] 1 glob++ VAL [arg={0:0}, arg={0:0}, glob=1, m={1:0}] Now there is a data race on ~glob~0 between C: glob++ [696] and C: glob++ [686] - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: 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: 686]: 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, 84 locations, 7 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: 2.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 114 IncrementalHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 14 mSDtfsCounter, 114 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=160occurred in iteration=3, InterpolantAutomatonStates: 9, 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 26 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2023-08-26 06:58:27,300 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...