/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 -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_03-munge_rc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 03:14:35,917 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 03:14:35,994 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 03:14:35,999 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 03:14:36,000 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 03:14:36,033 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 03:14:36,034 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 03:14:36,034 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 03:14:36,035 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 03:14:36,039 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 03:14:36,039 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 03:14:36,039 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 03:14:36,039 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 03:14:36,041 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 03:14:36,041 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 03:14:36,041 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 03:14:36,041 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 03:14:36,042 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 03:14:36,042 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 03:14:36,042 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 03:14:36,042 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 03:14:36,043 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 03:14:36,043 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 03:14:36,044 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 03:14:36,044 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 03:14:36,044 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 03:14:36,045 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 03:14:36,045 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:14:36,045 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 03:14:36,045 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 03:14:36,046 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 03:14:36,046 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 03:14:36,047 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 03:14:36,047 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 03:14:36,047 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 03:14:36,047 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 03:14:36,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 03:14:36,416 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 03:14:36,419 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 03:14:36,420 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 03:14:36,420 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 03:14:36,421 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_03-munge_rc.i [2023-08-25 03:14:37,536 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 03:14:37,827 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 03:14:37,827 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_03-munge_rc.i [2023-08-25 03:14:37,847 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f4278cf8/6ac9186a9b71402eba722056a6b97bba/FLAGb146db478 [2023-08-25 03:14:37,861 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f4278cf8/6ac9186a9b71402eba722056a6b97bba [2023-08-25 03:14:37,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 03:14:37,864 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 03:14:37,865 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 03:14:37,866 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 03:14:37,868 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 03:14:37,869 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:14:37" (1/1) ... [2023-08-25 03:14:37,870 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f90bc25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:14:37, skipping insertion in model container [2023-08-25 03:14:37,870 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:14:37" (1/1) ... [2023-08-25 03:14:37,916 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 03:14:38,343 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:14:38,357 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 03:14:38,385 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 03:14:38,386 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 03:14:38,396 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [736] [2023-08-25 03:14:38,404 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:14:38,476 INFO L206 MainTranslator]: Completed translation [2023-08-25 03:14:38,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:14:38 WrapperNode [2023-08-25 03:14:38,476 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 03:14:38,478 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 03:14:38,478 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 03:14:38,478 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 03:14:38,484 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:14:38" (1/1) ... [2023-08-25 03:14:38,512 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:14:38" (1/1) ... [2023-08-25 03:14:38,542 INFO L138 Inliner]: procedures = 263, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68 [2023-08-25 03:14:38,543 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 03:14:38,544 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 03:14:38,544 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 03:14:38,544 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 03:14:38,551 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:14:38" (1/1) ... [2023-08-25 03:14:38,552 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:14:38" (1/1) ... [2023-08-25 03:14:38,563 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:14:38" (1/1) ... [2023-08-25 03:14:38,564 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:14:38" (1/1) ... [2023-08-25 03:14:38,572 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:14:38" (1/1) ... [2023-08-25 03:14:38,574 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:14:38" (1/1) ... [2023-08-25 03:14:38,575 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:14:38" (1/1) ... [2023-08-25 03:14:38,576 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:14:38" (1/1) ... [2023-08-25 03:14:38,578 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 03:14:38,579 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 03:14:38,579 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 03:14:38,579 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 03:14:38,580 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:14:38" (1/1) ... [2023-08-25 03:14:38,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:14:38,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:14:38,618 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 03:14:38,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 03:14:38,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 03:14:38,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 03:14:38,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 03:14:38,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 03:14:38,666 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 03:14:38,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 03:14:38,666 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 03:14:38,666 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 03:14:38,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 03:14:38,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 03:14:38,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 03:14:38,668 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 03:14:38,820 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 03:14:38,825 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 03:14:39,002 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 03:14:39,010 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 03:14:39,012 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 03:14:39,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:14:39 BoogieIcfgContainer [2023-08-25 03:14:39,014 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 03:14:39,016 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 03:14:39,016 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 03:14:39,019 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 03:14:39,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 03:14:37" (1/3) ... [2023-08-25 03:14:39,020 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23070dad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:14:39, skipping insertion in model container [2023-08-25 03:14:39,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:14:38" (2/3) ... [2023-08-25 03:14:39,020 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23070dad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:14:39, skipping insertion in model container [2023-08-25 03:14:39,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:14:39" (3/3) ... [2023-08-25 03:14:39,021 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_03-munge_rc.i [2023-08-25 03:14:39,036 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 03:14:39,037 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-08-25 03:14:39,037 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 03:14:39,115 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-25 03:14:39,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 76 transitions, 160 flow [2023-08-25 03:14:39,191 INFO L124 PetriNetUnfolderBase]: 0/75 cut-off events. [2023-08-25 03:14:39,191 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 03:14:39,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 75 events. 0/75 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-08-25 03:14:39,194 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 76 transitions, 160 flow [2023-08-25 03:14:39,197 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 68 transitions, 139 flow [2023-08-25 03:14:39,200 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 03:14:39,206 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 68 transitions, 139 flow [2023-08-25 03:14:39,208 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 68 transitions, 139 flow [2023-08-25 03:14:39,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 72 places, 68 transitions, 139 flow [2023-08-25 03:14:39,224 INFO L124 PetriNetUnfolderBase]: 0/68 cut-off events. [2023-08-25 03:14:39,224 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:14:39,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 68 events. 0/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-25 03:14:39,225 INFO L119 LiptonReduction]: Number of co-enabled transitions 900 [2023-08-25 03:14:41,461 INFO L134 LiptonReduction]: Checked pairs total: 2733 [2023-08-25 03:14:41,461 INFO L136 LiptonReduction]: Total number of compositions: 50 [2023-08-25 03:14:41,483 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 03:14:41,490 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;@34259ce, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 03:14:41,490 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-25 03:14:41,492 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 03:14:41,493 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-08-25 03:14:41,493 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:14:41,493 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:14:41,494 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 03:14:41,494 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-25 03:14:41,499 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:14:41,499 INFO L85 PathProgramCache]: Analyzing trace with hash 240864292, now seen corresponding path program 1 times [2023-08-25 03:14:41,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:14:41,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309445978] [2023-08-25 03:14:41,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:14:41,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:14:41,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:14:41,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:14:41,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:14:41,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309445978] [2023-08-25 03:14:41,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309445978] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:14:41,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:14:41,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:14:41,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660047344] [2023-08-25 03:14:41,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:14:41,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:14:41,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:14:41,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:14:41,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:14:41,748 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 126 [2023-08-25 03:14:41,750 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 21 transitions, 45 flow. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:14:41,750 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:14:41,750 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 126 [2023-08-25 03:14:41,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:14:41,835 INFO L124 PetriNetUnfolderBase]: 67/170 cut-off events. [2023-08-25 03:14:41,835 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:14:41,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 331 conditions, 170 events. 67/170 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 701 event pairs, 33 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 322. Up to 101 conditions per place. [2023-08-25 03:14:41,838 INFO L140 encePairwiseOnDemand]: 117/126 looper letters, 26 selfloop transitions, 6 changer transitions 0/34 dead transitions. [2023-08-25 03:14:41,839 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 34 transitions, 135 flow [2023-08-25 03:14:41,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:14:41,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:14:41,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 222 transitions. [2023-08-25 03:14:41,853 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5873015873015873 [2023-08-25 03:14:41,854 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 222 transitions. [2023-08-25 03:14:41,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 222 transitions. [2023-08-25 03:14:41,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:14:41,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 222 transitions. [2023-08-25 03:14:41,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:14:41,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:14:41,868 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:14:41,870 INFO L175 Difference]: Start difference. First operand has 25 places, 21 transitions, 45 flow. Second operand 3 states and 222 transitions. [2023-08-25 03:14:41,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 34 transitions, 135 flow [2023-08-25 03:14:41,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 34 transitions, 134 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 03:14:41,874 INFO L231 Difference]: Finished difference. Result has 27 places, 26 transitions, 94 flow [2023-08-25 03:14:41,876 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=27, PETRI_TRANSITIONS=26} [2023-08-25 03:14:41,883 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 2 predicate places. [2023-08-25 03:14:41,883 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 26 transitions, 94 flow [2023-08-25 03:14:41,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:14:41,884 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:14:41,884 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:14:41,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 03:14:41,884 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-25 03:14:41,885 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:14:41,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1302047913, now seen corresponding path program 1 times [2023-08-25 03:14:41,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:14:41,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40492190] [2023-08-25 03:14:41,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:14:41,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:14:41,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:14:41,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:14:41,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:14:41,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40492190] [2023-08-25 03:14:41,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40492190] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:14:41,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:14:41,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:14:41,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932818590] [2023-08-25 03:14:41,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:14:41,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:14:41,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:14:41,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:14:41,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:14:41,942 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 126 [2023-08-25 03:14:41,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 26 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:14:41,942 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:14:41,943 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 126 [2023-08-25 03:14:41,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:14:42,001 INFO L124 PetriNetUnfolderBase]: 66/165 cut-off events. [2023-08-25 03:14:42,001 INFO L125 PetriNetUnfolderBase]: For 100/102 co-relation queries the response was YES. [2023-08-25 03:14:42,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 430 conditions, 165 events. 66/165 cut-off events. For 100/102 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 635 event pairs, 36 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 420. Up to 138 conditions per place. [2023-08-25 03:14:42,003 INFO L140 encePairwiseOnDemand]: 121/126 looper letters, 26 selfloop transitions, 6 changer transitions 2/36 dead transitions. [2023-08-25 03:14:42,003 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 36 transitions, 198 flow [2023-08-25 03:14:42,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:14:42,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:14:42,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 205 transitions. [2023-08-25 03:14:42,005 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5423280423280423 [2023-08-25 03:14:42,005 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 205 transitions. [2023-08-25 03:14:42,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 205 transitions. [2023-08-25 03:14:42,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:14:42,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 205 transitions. [2023-08-25 03:14:42,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:14:42,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:14:42,008 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:14:42,008 INFO L175 Difference]: Start difference. First operand has 27 places, 26 transitions, 94 flow. Second operand 3 states and 205 transitions. [2023-08-25 03:14:42,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 36 transitions, 198 flow [2023-08-25 03:14:42,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 36 transitions, 180 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 03:14:42,010 INFO L231 Difference]: Finished difference. Result has 28 places, 30 transitions, 124 flow [2023-08-25 03:14:42,011 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=28, PETRI_TRANSITIONS=30} [2023-08-25 03:14:42,011 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 3 predicate places. [2023-08-25 03:14:42,012 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 30 transitions, 124 flow [2023-08-25 03:14:42,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:14:42,012 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:14:42,012 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:14:42,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 03:14:42,012 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-25 03:14:42,013 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:14:42,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1278650126, now seen corresponding path program 1 times [2023-08-25 03:14:42,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:14:42,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353723474] [2023-08-25 03:14:42,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:14:42,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:14:42,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:14:42,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:14:42,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:14:42,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353723474] [2023-08-25 03:14:42,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353723474] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:14:42,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:14:42,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:14:42,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420617710] [2023-08-25 03:14:42,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:14:42,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:14:42,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:14:42,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:14:42,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:14:42,082 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 126 [2023-08-25 03:14:42,083 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 30 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:14:42,083 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:14:42,083 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 126 [2023-08-25 03:14:42,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:14:42,135 INFO L124 PetriNetUnfolderBase]: 61/158 cut-off events. [2023-08-25 03:14:42,135 INFO L125 PetriNetUnfolderBase]: For 117/119 co-relation queries the response was YES. [2023-08-25 03:14:42,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 439 conditions, 158 events. 61/158 cut-off events. For 117/119 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 612 event pairs, 28 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 428. Up to 129 conditions per place. [2023-08-25 03:14:42,137 INFO L140 encePairwiseOnDemand]: 121/126 looper letters, 24 selfloop transitions, 7 changer transitions 7/40 dead transitions. [2023-08-25 03:14:42,137 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 40 transitions, 240 flow [2023-08-25 03:14:42,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:14:42,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:14:42,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 205 transitions. [2023-08-25 03:14:42,141 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5423280423280423 [2023-08-25 03:14:42,141 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 205 transitions. [2023-08-25 03:14:42,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 205 transitions. [2023-08-25 03:14:42,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:14:42,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 205 transitions. [2023-08-25 03:14:42,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:14:42,146 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:14:42,146 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:14:42,146 INFO L175 Difference]: Start difference. First operand has 28 places, 30 transitions, 124 flow. Second operand 3 states and 205 transitions. [2023-08-25 03:14:42,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 40 transitions, 240 flow [2023-08-25 03:14:42,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 40 transitions, 232 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 03:14:42,149 INFO L231 Difference]: Finished difference. Result has 30 places, 30 transitions, 145 flow [2023-08-25 03:14:42,149 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=145, PETRI_PLACES=30, PETRI_TRANSITIONS=30} [2023-08-25 03:14:42,150 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 5 predicate places. [2023-08-25 03:14:42,150 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 30 transitions, 145 flow [2023-08-25 03:14:42,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:14:42,151 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:14:42,151 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:14:42,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 03:14:42,151 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-25 03:14:42,151 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:14:42,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1320717708, now seen corresponding path program 1 times [2023-08-25 03:14:42,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:14:42,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989481467] [2023-08-25 03:14:42,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:14:42,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:14:42,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 03:14:42,191 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 03:14:42,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 03:14:42,242 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 03:14:42,242 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 03:14:42,243 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2023-08-25 03:14:42,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2023-08-25 03:14:42,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2023-08-25 03:14:42,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2023-08-25 03:14:42,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2023-08-25 03:14:42,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2023-08-25 03:14:42,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2023-08-25 03:14:42,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2023-08-25 03:14:42,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 03:14:42,248 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-25 03:14:42,253 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 03:14:42,254 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 03:14:42,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 03:14:42 BasicIcfg [2023-08-25 03:14:42,287 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 03:14:42,287 INFO L158 Benchmark]: Toolchain (without parser) took 4422.81ms. Allocated memory was 333.4MB in the beginning and 400.6MB in the end (delta: 67.1MB). Free memory was 307.7MB in the beginning and 321.6MB in the end (delta: -13.9MB). Peak memory consumption was 55.4MB. Max. memory is 16.0GB. [2023-08-25 03:14:42,288 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 333.4MB. Free memory is still 309.8MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 03:14:42,288 INFO L158 Benchmark]: CACSL2BoogieTranslator took 611.44ms. Allocated memory is still 333.4MB. Free memory was 307.7MB in the beginning and 280.5MB in the end (delta: 27.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-08-25 03:14:42,288 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.46ms. Allocated memory is still 333.4MB. Free memory was 280.5MB in the beginning and 277.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 03:14:42,289 INFO L158 Benchmark]: Boogie Preprocessor took 34.27ms. Allocated memory is still 333.4MB. Free memory was 277.8MB in the beginning and 276.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 03:14:42,289 INFO L158 Benchmark]: RCFGBuilder took 434.89ms. Allocated memory is still 333.4MB. Free memory was 276.3MB in the beginning and 262.7MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-25 03:14:42,290 INFO L158 Benchmark]: TraceAbstraction took 3270.42ms. Allocated memory was 333.4MB in the beginning and 400.6MB in the end (delta: 67.1MB). Free memory was 262.2MB in the beginning and 321.6MB in the end (delta: -59.4MB). Peak memory consumption was 9.3MB. Max. memory is 16.0GB. [2023-08-25 03:14:42,292 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 309.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 611.44ms. Allocated memory is still 333.4MB. Free memory was 307.7MB in the beginning and 280.5MB in the end (delta: 27.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 65.46ms. Allocated memory is still 333.4MB. Free memory was 280.5MB in the beginning and 277.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 34.27ms. Allocated memory is still 333.4MB. Free memory was 277.8MB in the beginning and 276.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 434.89ms. Allocated memory is still 333.4MB. Free memory was 276.3MB in the beginning and 262.7MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 3270.42ms. Allocated memory was 333.4MB in the beginning and 400.6MB in the end (delta: 67.1MB). Free memory was 262.2MB in the beginning and 321.6MB in the end (delta: -59.4MB). Peak memory consumption was 9.3MB. 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] - 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: 2.3s, 72 PlacesBefore, 25 PlacesAfterwards, 68 TransitionsBefore, 21 TransitionsAfterwards, 900 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 50 TotalNumberOfCompositions, 2733 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1288, independent: 1080, independent conditional: 0, independent unconditional: 1080, dependent: 208, dependent conditional: 0, dependent unconditional: 208, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 466, independent: 439, independent conditional: 0, independent unconditional: 439, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1288, independent: 641, independent conditional: 0, independent unconditional: 641, dependent: 181, dependent conditional: 0, dependent unconditional: 181, unknown: 466, unknown conditional: 0, unknown unconditional: 466] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 47, Positive conditional cache size: 0, Positive unconditional cache size: 47, 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: 922]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; [L918] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L919] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L930] 0 pthread_t id; [L931] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L932] CALL 0 munge(&mutex1) [L926] CALL 1 munge(&mutex2) [L922] EXPR 0 myglobal+1 VAL [m={1:0}, m={1:0}, m={2:0}, m={2:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0, pthread_mutex_lock(m)=0] [L922] 1 myglobal+1 VAL [m={1:0}, m={1:0}, m={2:0}, m={2:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L922] 0 myglobal=myglobal+1 VAL [m={1:0}, m={1:0}, m={2:0}, m={2:0}, mutex1={1:0}, mutex2={2:0}, myglobal=1, myglobal=myglobal+1=25] [L922] 1 myglobal+1 VAL [m={1:0}, m={1:0}, m={2:0}, m={2:0}, mutex1={1:0}, mutex2={2:0}, myglobal=1, myglobal=myglobal+1=25] Now there is a data race on ~myglobal~0 between C: myglobal=myglobal+1 [922] and C: myglobal+1 [922] - UnprovableResult [Line: 922]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 922]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 933]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 931]: 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: 922]: 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, 97 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 116 IncrementalHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 14 mSDtfsCounter, 116 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=145occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 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! [2023-08-25 03:14:42,329 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...