/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/04-mutex_20-stdfun_rc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 06:56:49,025 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 06:56:49,116 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 06:56:49,121 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 06:56:49,121 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 06:56:49,147 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 06:56:49,148 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 06:56:49,148 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 06:56:49,149 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 06:56:49,152 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 06:56:49,152 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 06:56:49,152 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 06:56:49,153 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 06:56:49,154 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 06:56:49,154 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 06:56:49,154 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 06:56:49,154 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 06:56:49,155 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 06:56:49,155 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 06:56:49,155 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 06:56:49,155 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 06:56:49,156 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 06:56:49,156 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 06:56:49,157 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 06:56:49,157 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 06:56:49,157 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 06:56:49,157 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 06:56:49,157 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 06:56:49,158 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 06:56:49,158 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 06:56:49,159 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 06:56:49,159 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 06:56:49,159 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 06:56:49,159 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 06:56:49,159 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 06:56:49,160 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 06:56:49,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 06:56:49,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 06:56:49,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 06:56:49,467 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 06:56:49,467 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 06:56:49,469 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_20-stdfun_rc.i [2023-08-26 06:56:50,648 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 06:56:50,959 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 06:56:50,960 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_20-stdfun_rc.i [2023-08-26 06:56:50,979 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60c7df0e1/6a065de17e5d4bd183c1ae9e4338ca72/FLAG4a623b9be [2023-08-26 06:56:50,994 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60c7df0e1/6a065de17e5d4bd183c1ae9e4338ca72 [2023-08-26 06:56:50,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 06:56:50,999 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 06:56:51,003 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 06:56:51,003 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 06:56:51,006 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 06:56:51,007 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 06:56:50" (1/1) ... [2023-08-26 06:56:51,007 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f8f2613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:56:51, skipping insertion in model container [2023-08-26 06:56:51,008 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 06:56:50" (1/1) ... [2023-08-26 06:56:51,055 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 06:56:51,423 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 06:56:51,437 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 06:56:51,452 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-26 06:56:51,454 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-26 06:56:51,463 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [736] [2023-08-26 06:56:51,473 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 06:56:51,532 INFO L206 MainTranslator]: Completed translation [2023-08-26 06:56:51,532 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:56:51 WrapperNode [2023-08-26 06:56:51,533 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 06:56:51,533 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 06:56:51,534 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 06:56:51,534 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 06:56:51,539 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:56:51" (1/1) ... [2023-08-26 06:56:51,554 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:56:51" (1/1) ... [2023-08-26 06:56:51,569 INFO L138 Inliner]: procedures = 261, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 33 [2023-08-26 06:56:51,569 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 06:56:51,570 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 06:56:51,570 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 06:56:51,570 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 06:56:51,577 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:56:51" (1/1) ... [2023-08-26 06:56:51,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:56:51" (1/1) ... [2023-08-26 06:56:51,580 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:56:51" (1/1) ... [2023-08-26 06:56:51,580 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:56:51" (1/1) ... [2023-08-26 06:56:51,587 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:56:51" (1/1) ... [2023-08-26 06:56:51,588 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:56:51" (1/1) ... [2023-08-26 06:56:51,589 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:56:51" (1/1) ... [2023-08-26 06:56:51,590 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:56:51" (1/1) ... [2023-08-26 06:56:51,610 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 06:56:51,611 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 06:56:51,611 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 06:56:51,611 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 06:56:51,611 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:56:51" (1/1) ... [2023-08-26 06:56:51,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 06:56:51,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 06:56:51,650 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 06:56:51,671 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 06:56:51,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 06:56:51,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 06:56:51,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 06:56:51,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 06:56:51,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 06:56:51,683 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-26 06:56:51,683 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-26 06:56:51,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 06:56:51,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 06:56:51,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 06:56:51,684 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 06:56:51,788 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 06:56:51,789 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 06:56:51,905 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 06:56:51,913 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 06:56:51,913 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 06:56:51,915 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 06:56:51 BoogieIcfgContainer [2023-08-26 06:56:51,915 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 06:56:51,917 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 06:56:51,917 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 06:56:51,919 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 06:56:51,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 06:56:50" (1/3) ... [2023-08-26 06:56:51,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28ede6d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 06:56:51, skipping insertion in model container [2023-08-26 06:56:51,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:56:51" (2/3) ... [2023-08-26 06:56:51,921 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28ede6d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 06:56:51, skipping insertion in model container [2023-08-26 06:56:51,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 06:56:51" (3/3) ... [2023-08-26 06:56:51,922 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_20-stdfun_rc.i [2023-08-26 06:56:51,936 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 06:56:51,937 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-08-26 06:56:51,937 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 06:56:51,981 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 06:56:52,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 54 transitions, 113 flow [2023-08-26 06:56:52,071 INFO L124 PetriNetUnfolderBase]: 0/53 cut-off events. [2023-08-26 06:56:52,072 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:56:52,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 53 events. 0/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-26 06:56:52,076 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 54 transitions, 113 flow [2023-08-26 06:56:52,080 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 53 transitions, 109 flow [2023-08-26 06:56:52,084 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 06:56:52,098 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 53 transitions, 109 flow [2023-08-26 06:56:52,104 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 53 transitions, 109 flow [2023-08-26 06:56:52,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 53 transitions, 109 flow [2023-08-26 06:56:52,127 INFO L124 PetriNetUnfolderBase]: 0/53 cut-off events. [2023-08-26 06:56:52,127 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:56:52,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 53 events. 0/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-26 06:56:52,129 INFO L119 LiptonReduction]: Number of co-enabled transitions 800 [2023-08-26 06:56:53,107 INFO L134 LiptonReduction]: Checked pairs total: 2645 [2023-08-26 06:56:53,107 INFO L136 LiptonReduction]: Total number of compositions: 30 [2023-08-26 06:56:53,127 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 06:56:53,133 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;@78973c29, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 06:56:53,133 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-08-26 06:56:53,139 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 06:56:53,140 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2023-08-26 06:56:53,140 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:56:53,140 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:56:53,141 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:56:53,141 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-26 06:56:53,145 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:56:53,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1598554099, now seen corresponding path program 1 times [2023-08-26 06:56:53,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:56:53,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514660683] [2023-08-26 06:56:53,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:56:53,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:56:53,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:56:53,705 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 06:56:53,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:56:53,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514660683] [2023-08-26 06:56:53,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514660683] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:56:53,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:56:53,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 06:56:53,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901509253] [2023-08-26 06:56:53,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:56:53,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 06:56:53,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:56:53,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 06:56:53,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 06:56:53,742 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 84 [2023-08-26 06:56:53,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 23 transitions, 49 flow. Second operand has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 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 06:56:53,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:56:53,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 84 [2023-08-26 06:56:53,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:56:54,042 INFO L124 PetriNetUnfolderBase]: 207/448 cut-off events. [2023-08-26 06:56:54,042 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:56:54,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 901 conditions, 448 events. 207/448 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1989 event pairs, 51 based on Foata normal form. 0/375 useless extension candidates. Maximal degree in co-relation 892. Up to 230 conditions per place. [2023-08-26 06:56:54,048 INFO L140 encePairwiseOnDemand]: 68/84 looper letters, 60 selfloop transitions, 34 changer transitions 1/95 dead transitions. [2023-08-26 06:56:54,048 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 95 transitions, 383 flow [2023-08-26 06:56:54,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 06:56:54,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 06:56:54,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 258 transitions. [2023-08-26 06:56:54,070 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5119047619047619 [2023-08-26 06:56:54,070 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 258 transitions. [2023-08-26 06:56:54,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 258 transitions. [2023-08-26 06:56:54,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:56:54,075 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 258 transitions. [2023-08-26 06:56:54,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 43.0) internal successors, (258), 6 states have internal predecessors, (258), 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 06:56:54,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 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 06:56:54,084 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 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 06:56:54,085 INFO L175 Difference]: Start difference. First operand has 27 places, 23 transitions, 49 flow. Second operand 6 states and 258 transitions. [2023-08-26 06:56:54,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 95 transitions, 383 flow [2023-08-26 06:56:54,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 95 transitions, 382 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 06:56:54,091 INFO L231 Difference]: Finished difference. Result has 35 places, 59 transitions, 283 flow [2023-08-26 06:56:54,093 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=283, PETRI_PLACES=35, PETRI_TRANSITIONS=59} [2023-08-26 06:56:54,096 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 8 predicate places. [2023-08-26 06:56:54,096 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 59 transitions, 283 flow [2023-08-26 06:56:54,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 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 06:56:54,096 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:56:54,096 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:56:54,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 06:56:54,097 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-26 06:56:54,104 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:56:54,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1286986729, now seen corresponding path program 1 times [2023-08-26 06:56:54,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:56:54,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893157595] [2023-08-26 06:56:54,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:56:54,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:56:54,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:56:54,363 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 06:56:54,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:56:54,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893157595] [2023-08-26 06:56:54,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893157595] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:56:54,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:56:54,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 06:56:54,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723647704] [2023-08-26 06:56:54,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:56:54,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 06:56:54,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:56:54,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 06:56:54,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 06:56:54,367 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 84 [2023-08-26 06:56:54,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 59 transitions, 283 flow. Second operand has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 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 06:56:54,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:56:54,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 84 [2023-08-26 06:56:54,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:56:54,547 INFO L124 PetriNetUnfolderBase]: 259/564 cut-off events. [2023-08-26 06:56:54,548 INFO L125 PetriNetUnfolderBase]: For 236/236 co-relation queries the response was YES. [2023-08-26 06:56:54,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1776 conditions, 564 events. 259/564 cut-off events. For 236/236 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2743 event pairs, 54 based on Foata normal form. 8/572 useless extension candidates. Maximal degree in co-relation 1763. Up to 349 conditions per place. [2023-08-26 06:56:54,553 INFO L140 encePairwiseOnDemand]: 72/84 looper letters, 79 selfloop transitions, 40 changer transitions 0/119 dead transitions. [2023-08-26 06:56:54,553 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 119 transitions, 757 flow [2023-08-26 06:56:54,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 06:56:54,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 06:56:54,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 256 transitions. [2023-08-26 06:56:54,555 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5079365079365079 [2023-08-26 06:56:54,555 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 256 transitions. [2023-08-26 06:56:54,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 256 transitions. [2023-08-26 06:56:54,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:56:54,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 256 transitions. [2023-08-26 06:56:54,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 42.666666666666664) internal successors, (256), 6 states have internal predecessors, (256), 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 06:56:54,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 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 06:56:54,558 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 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 06:56:54,558 INFO L175 Difference]: Start difference. First operand has 35 places, 59 transitions, 283 flow. Second operand 6 states and 256 transitions. [2023-08-26 06:56:54,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 119 transitions, 757 flow [2023-08-26 06:56:54,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 119 transitions, 757 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 06:56:54,565 INFO L231 Difference]: Finished difference. Result has 44 places, 93 transitions, 605 flow [2023-08-26 06:56:54,565 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=605, PETRI_PLACES=44, PETRI_TRANSITIONS=93} [2023-08-26 06:56:54,565 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 17 predicate places. [2023-08-26 06:56:54,566 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 93 transitions, 605 flow [2023-08-26 06:56:54,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 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 06:56:54,566 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:56:54,566 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:56:54,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 06:56:54,567 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-26 06:56:54,567 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:56:54,567 INFO L85 PathProgramCache]: Analyzing trace with hash 66991480, now seen corresponding path program 1 times [2023-08-26 06:56:54,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:56:54,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525055425] [2023-08-26 06:56:54,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:56:54,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:56:54,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 06:56:54,580 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 06:56:54,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 06:56:54,602 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 06:56:54,602 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 06:56:54,603 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 6 remaining) [2023-08-26 06:56:54,604 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2023-08-26 06:56:54,604 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2023-08-26 06:56:54,604 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2023-08-26 06:56:54,605 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2023-08-26 06:56:54,605 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2023-08-26 06:56:54,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 06:56:54,605 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-26 06:56:54,610 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 06:56:54,610 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 06:56:54,628 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 06:56:54 BasicIcfg [2023-08-26 06:56:54,628 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 06:56:54,629 INFO L158 Benchmark]: Toolchain (without parser) took 3629.61ms. Allocated memory was 333.4MB in the beginning and 408.9MB in the end (delta: 75.5MB). Free memory was 308.5MB in the beginning and 329.0MB in the end (delta: -20.6MB). Peak memory consumption was 55.6MB. Max. memory is 16.0GB. [2023-08-26 06:56:54,629 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 333.4MB. Free memory is still 310.0MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 06:56:54,630 INFO L158 Benchmark]: CACSL2BoogieTranslator took 529.84ms. Allocated memory is still 333.4MB. Free memory was 308.1MB in the beginning and 281.5MB in the end (delta: 26.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-08-26 06:56:54,630 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.97ms. Allocated memory is still 333.4MB. Free memory was 281.5MB in the beginning and 279.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 06:56:54,630 INFO L158 Benchmark]: Boogie Preprocessor took 39.93ms. Allocated memory is still 333.4MB. Free memory was 279.4MB in the beginning and 277.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 06:56:54,631 INFO L158 Benchmark]: RCFGBuilder took 304.38ms. Allocated memory is still 333.4MB. Free memory was 277.8MB in the beginning and 264.8MB in the end (delta: 13.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-26 06:56:54,631 INFO L158 Benchmark]: TraceAbstraction took 2711.72ms. Allocated memory was 333.4MB in the beginning and 408.9MB in the end (delta: 75.5MB). Free memory was 264.1MB in the beginning and 329.0MB in the end (delta: -64.9MB). Peak memory consumption was 11.6MB. Max. memory is 16.0GB. [2023-08-26 06:56:54,633 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 333.4MB. Free memory is still 310.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 529.84ms. Allocated memory is still 333.4MB. Free memory was 308.1MB in the beginning and 281.5MB in the end (delta: 26.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 35.97ms. Allocated memory is still 333.4MB. Free memory was 281.5MB in the beginning and 279.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 39.93ms. Allocated memory is still 333.4MB. Free memory was 279.4MB in the beginning and 277.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 304.38ms. Allocated memory is still 333.4MB. Free memory was 277.8MB in the beginning and 264.8MB in the end (delta: 13.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 2711.72ms. Allocated memory was 333.4MB in the beginning and 408.9MB in the end (delta: 75.5MB). Free memory was 264.1MB in the beginning and 329.0MB in the end (delta: -64.9MB). Peak memory consumption was 11.6MB. 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] - GenericResultAtLocation [Line: 736]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [736] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.0s, 57 PlacesBefore, 27 PlacesAfterwards, 53 TransitionsBefore, 23 TransitionsAfterwards, 800 CoEnabledTransitionPairs, 4 FixpointIterations, 11 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 30 TotalNumberOfCompositions, 2645 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 651, independent: 469, independent conditional: 0, independent unconditional: 469, dependent: 182, dependent conditional: 0, dependent unconditional: 182, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 352, independent: 321, independent conditional: 0, independent unconditional: 321, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 651, independent: 148, independent conditional: 0, independent unconditional: 148, dependent: 151, dependent conditional: 0, dependent unconditional: 151, unknown: 352, unknown conditional: 0, unknown unconditional: 352] , Statistics on independence cache: Total cache size (in pairs): 31, Positive cache size: 12, Positive conditional cache size: 0, Positive unconditional cache size: 12, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 919]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; [L923] 0 pthread_t id; [L924] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id={5:0}, myglobal={1:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L919] EXPR 1 \read(myglobal) VAL [\read(myglobal)=0, arg={0:0}, arg={0:0}, myglobal={1:0}] [L919] 1 myglobal+1 VAL [\read(myglobal)=0, arg={0:0}, arg={0:0}, myglobal={1:0}] [L919] 1 myglobal+1 VAL [\read(myglobal)=0, arg={0:0}, arg={0:0}, myglobal={1:0}] Now there is a data race (on the heap) between C: scanf("%d", &myglobal) [925] and C: myglobal+1 [919] - UnprovableResult [Line: 925]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 924]: 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: 919]: 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, 77 locations, 6 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: 2.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 325 IncrementalHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 21 mSDtfsCounter, 325 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=605occurred in iteration=2, InterpolantAutomatonStates: 12, 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, 0.6s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 176 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-26 06:56:54,659 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...