/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_45-escape_rc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 17:17:19,543 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 17:17:19,626 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 17:17:19,631 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 17:17:19,631 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 17:17:19,661 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 17:17:19,662 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 17:17:19,662 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 17:17:19,663 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 17:17:19,666 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 17:17:19,666 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 17:17:19,667 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 17:17:19,667 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 17:17:19,668 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 17:17:19,668 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 17:17:19,669 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 17:17:19,669 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 17:17:19,669 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 17:17:19,669 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 17:17:19,669 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 17:17:19,670 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 17:17:19,670 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 17:17:19,671 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 17:17:19,671 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 17:17:19,672 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 17:17:19,672 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 17:17:19,672 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 17:17:19,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:17:19,673 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 17:17:19,673 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 17:17:19,674 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 17:17:19,674 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 17:17:19,674 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 17:17:19,674 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 17:17:19,675 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 17:17:19,675 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 17:17:20,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 17:17:20,028 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 17:17:20,030 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 17:17:20,031 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 17:17:20,031 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 17:17:20,032 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_45-escape_rc.i [2023-08-25 17:17:21,202 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 17:17:21,518 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 17:17:21,519 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_45-escape_rc.i [2023-08-25 17:17:21,539 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/678167384/ff7a156c251b41deaf788f1763c169d4/FLAG8c398c4ec [2023-08-25 17:17:21,555 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/678167384/ff7a156c251b41deaf788f1763c169d4 [2023-08-25 17:17:21,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 17:17:21,561 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 17:17:21,563 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 17:17:21,564 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 17:17:21,566 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 17:17:21,568 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:17:21" (1/1) ... [2023-08-25 17:17:21,568 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c3726ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:21, skipping insertion in model container [2023-08-25 17:17:21,569 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:17:21" (1/1) ... [2023-08-25 17:17:21,623 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 17:17:22,033 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:17:22,047 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 17:17:22,077 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 17:17:22,079 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 17:17:22,085 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [736] [2023-08-25 17:17:22,096 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:17:22,146 INFO L206 MainTranslator]: Completed translation [2023-08-25 17:17:22,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:22 WrapperNode [2023-08-25 17:17:22,146 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 17:17:22,148 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 17:17:22,148 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 17:17:22,148 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 17:17:22,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:22" (1/1) ... [2023-08-25 17:17:22,168 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:22" (1/1) ... [2023-08-25 17:17:22,188 INFO L138 Inliner]: procedures = 262, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 65 [2023-08-25 17:17:22,188 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 17:17:22,189 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 17:17:22,189 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 17:17:22,189 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 17:17:22,197 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:22" (1/1) ... [2023-08-25 17:17:22,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:22" (1/1) ... [2023-08-25 17:17:22,200 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:22" (1/1) ... [2023-08-25 17:17:22,200 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:22" (1/1) ... [2023-08-25 17:17:22,209 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:22" (1/1) ... [2023-08-25 17:17:22,211 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:22" (1/1) ... [2023-08-25 17:17:22,212 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:22" (1/1) ... [2023-08-25 17:17:22,213 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:22" (1/1) ... [2023-08-25 17:17:22,216 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 17:17:22,217 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 17:17:22,217 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 17:17:22,217 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 17:17:22,218 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:22" (1/1) ... [2023-08-25 17:17:22,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:17:22,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 17:17:22,245 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 17:17:22,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 17:17:22,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 17:17:22,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 17:17:22,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 17:17:22,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 17:17:22,275 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 17:17:22,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 17:17:22,275 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 17:17:22,275 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 17:17:22,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 17:17:22,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 17:17:22,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 17:17:22,277 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 17:17:22,383 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 17:17:22,384 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 17:17:22,612 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 17:17:22,617 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 17:17:22,618 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 17:17:22,619 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:17:22 BoogieIcfgContainer [2023-08-25 17:17:22,619 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 17:17:22,624 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 17:17:22,624 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 17:17:22,627 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 17:17:22,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:17:21" (1/3) ... [2023-08-25 17:17:22,628 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c5a5db8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:17:22, skipping insertion in model container [2023-08-25 17:17:22,628 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:22" (2/3) ... [2023-08-25 17:17:22,628 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c5a5db8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:17:22, skipping insertion in model container [2023-08-25 17:17:22,629 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:17:22" (3/3) ... [2023-08-25 17:17:22,630 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_45-escape_rc.i [2023-08-25 17:17:22,645 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 17:17:22,645 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-08-25 17:17:22,646 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 17:17:22,740 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-25 17:17:22,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 92 transitions, 192 flow [2023-08-25 17:17:22,811 INFO L124 PetriNetUnfolderBase]: 0/91 cut-off events. [2023-08-25 17:17:22,811 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 17:17:22,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 91 events. 0/91 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-08-25 17:17:22,814 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 92 transitions, 192 flow [2023-08-25 17:17:22,818 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 86 places, 82 transitions, 167 flow [2023-08-25 17:17:22,821 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 17:17:22,829 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 82 transitions, 167 flow [2023-08-25 17:17:22,832 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 82 transitions, 167 flow [2023-08-25 17:17:22,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 82 transitions, 167 flow [2023-08-25 17:17:22,854 INFO L124 PetriNetUnfolderBase]: 0/82 cut-off events. [2023-08-25 17:17:22,855 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:17:22,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 82 events. 0/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-25 17:17:22,856 INFO L119 LiptonReduction]: Number of co-enabled transitions 1612 [2023-08-25 17:17:24,813 INFO L134 LiptonReduction]: Checked pairs total: 9081 [2023-08-25 17:17:24,814 INFO L136 LiptonReduction]: Total number of compositions: 41 [2023-08-25 17:17:24,825 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 17:17:24,830 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;@5943dd52, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 17:17:24,831 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-25 17:17:24,844 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 17:17:24,844 INFO L124 PetriNetUnfolderBase]: 0/14 cut-off events. [2023-08-25 17:17:24,844 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:17:24,844 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:17:24,845 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:17:24,845 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 17:17:24,849 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:17:24,850 INFO L85 PathProgramCache]: Analyzing trace with hash -399400498, now seen corresponding path program 1 times [2023-08-25 17:17:24,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:17:24,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053459892] [2023-08-25 17:17:24,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:17:24,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:17:25,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:17:25,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:17:25,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:17:25,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053459892] [2023-08-25 17:17:25,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053459892] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:17:25,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:17:25,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:17:25,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72393074] [2023-08-25 17:17:25,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:17:25,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:17:25,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:17:25,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:17:25,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:17:25,546 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 133 [2023-08-25 17:17:25,548 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 41 transitions, 85 flow. Second operand has 6 states, 6 states have (on average 55.5) internal successors, (333), 6 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:25,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:17:25,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 133 [2023-08-25 17:17:25,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:17:25,882 INFO L124 PetriNetUnfolderBase]: 378/818 cut-off events. [2023-08-25 17:17:25,883 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:17:25,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1625 conditions, 818 events. 378/818 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3600 event pairs, 243 based on Foata normal form. 0/725 useless extension candidates. Maximal degree in co-relation 1616. Up to 622 conditions per place. [2023-08-25 17:17:25,892 INFO L140 encePairwiseOnDemand]: 122/133 looper letters, 88 selfloop transitions, 22 changer transitions 0/111 dead transitions. [2023-08-25 17:17:25,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 111 transitions, 445 flow [2023-08-25 17:17:25,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:17:25,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:17:25,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 435 transitions. [2023-08-25 17:17:25,905 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5451127819548872 [2023-08-25 17:17:25,905 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 435 transitions. [2023-08-25 17:17:25,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 435 transitions. [2023-08-25 17:17:25,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:17:25,909 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 435 transitions. [2023-08-25 17:17:25,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 72.5) internal successors, (435), 6 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:25,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 133.0) internal successors, (931), 7 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:25,918 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 133.0) internal successors, (931), 7 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:25,920 INFO L175 Difference]: Start difference. First operand has 45 places, 41 transitions, 85 flow. Second operand 6 states and 435 transitions. [2023-08-25 17:17:25,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 111 transitions, 445 flow [2023-08-25 17:17:25,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 111 transitions, 444 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:17:25,926 INFO L231 Difference]: Finished difference. Result has 54 places, 62 transitions, 234 flow [2023-08-25 17:17:25,927 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=234, PETRI_PLACES=54, PETRI_TRANSITIONS=62} [2023-08-25 17:17:25,930 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 9 predicate places. [2023-08-25 17:17:25,930 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 62 transitions, 234 flow [2023-08-25 17:17:25,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.5) internal successors, (333), 6 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:25,931 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:17:25,931 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:17:25,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 17:17:25,931 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-25 17:17:25,932 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:17:25,932 INFO L85 PathProgramCache]: Analyzing trace with hash 193467006, now seen corresponding path program 1 times [2023-08-25 17:17:25,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:17:25,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413058874] [2023-08-25 17:17:25,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:17:25,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:17:25,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:17:26,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:17:26,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:17:26,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413058874] [2023-08-25 17:17:26,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413058874] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:17:26,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:17:26,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:17:26,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612336958] [2023-08-25 17:17:26,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:17:26,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:17:26,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:17:26,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:17:26,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:17:26,103 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 133 [2023-08-25 17:17:26,103 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 62 transitions, 234 flow. Second operand has 6 states, 6 states have (on average 58.5) internal successors, (351), 6 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:26,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:17:26,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 133 [2023-08-25 17:17:26,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:17:26,414 INFO L124 PetriNetUnfolderBase]: 420/912 cut-off events. [2023-08-25 17:17:26,414 INFO L125 PetriNetUnfolderBase]: For 263/263 co-relation queries the response was YES. [2023-08-25 17:17:26,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2171 conditions, 912 events. 420/912 cut-off events. For 263/263 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 4333 event pairs, 172 based on Foata normal form. 0/825 useless extension candidates. Maximal degree in co-relation 2158. Up to 656 conditions per place. [2023-08-25 17:17:26,424 INFO L140 encePairwiseOnDemand]: 122/133 looper letters, 120 selfloop transitions, 26 changer transitions 0/148 dead transitions. [2023-08-25 17:17:26,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 148 transitions, 788 flow [2023-08-25 17:17:26,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:17:26,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:17:26,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 468 transitions. [2023-08-25 17:17:26,430 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5864661654135338 [2023-08-25 17:17:26,430 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 468 transitions. [2023-08-25 17:17:26,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 468 transitions. [2023-08-25 17:17:26,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:17:26,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 468 transitions. [2023-08-25 17:17:26,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 78.0) internal successors, (468), 6 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:26,436 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 133.0) internal successors, (931), 7 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:26,437 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 133.0) internal successors, (931), 7 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:26,437 INFO L175 Difference]: Start difference. First operand has 54 places, 62 transitions, 234 flow. Second operand 6 states and 468 transitions. [2023-08-25 17:17:26,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 148 transitions, 788 flow [2023-08-25 17:17:26,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 148 transitions, 788 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 17:17:26,443 INFO L231 Difference]: Finished difference. Result has 64 places, 83 transitions, 418 flow [2023-08-25 17:17:26,443 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=418, PETRI_PLACES=64, PETRI_TRANSITIONS=83} [2023-08-25 17:17:26,444 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 19 predicate places. [2023-08-25 17:17:26,444 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 83 transitions, 418 flow [2023-08-25 17:17:26,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 58.5) internal successors, (351), 6 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:26,445 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:17:26,445 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:17:26,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 17:17:26,445 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-25 17:17:26,446 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:17:26,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1090928100, now seen corresponding path program 1 times [2023-08-25 17:17:26,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:17:26,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853096345] [2023-08-25 17:17:26,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:17:26,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:17:26,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:17:26,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:17:26,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:17:26,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853096345] [2023-08-25 17:17:26,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853096345] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:17:26,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:17:26,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:17:26,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372472385] [2023-08-25 17:17:26,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:17:26,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:17:26,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:17:26,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:17:26,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:17:26,675 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 133 [2023-08-25 17:17:26,676 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 83 transitions, 418 flow. Second operand has 6 states, 6 states have (on average 54.5) internal successors, (327), 6 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:26,676 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:17:26,676 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 133 [2023-08-25 17:17:26,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:17:27,048 INFO L124 PetriNetUnfolderBase]: 511/1089 cut-off events. [2023-08-25 17:17:27,048 INFO L125 PetriNetUnfolderBase]: For 728/728 co-relation queries the response was YES. [2023-08-25 17:17:27,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3115 conditions, 1089 events. 511/1089 cut-off events. For 728/728 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 5355 event pairs, 227 based on Foata normal form. 0/1011 useless extension candidates. Maximal degree in co-relation 3097. Up to 915 conditions per place. [2023-08-25 17:17:27,055 INFO L140 encePairwiseOnDemand]: 118/133 looper letters, 109 selfloop transitions, 53 changer transitions 0/163 dead transitions. [2023-08-25 17:17:27,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 163 transitions, 1062 flow [2023-08-25 17:17:27,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:17:27,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:17:27,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 422 transitions. [2023-08-25 17:17:27,058 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5288220551378446 [2023-08-25 17:17:27,058 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 422 transitions. [2023-08-25 17:17:27,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 422 transitions. [2023-08-25 17:17:27,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:17:27,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 422 transitions. [2023-08-25 17:17:27,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 70.33333333333333) internal successors, (422), 6 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:27,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 133.0) internal successors, (931), 7 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:27,061 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 133.0) internal successors, (931), 7 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:27,061 INFO L175 Difference]: Start difference. First operand has 64 places, 83 transitions, 418 flow. Second operand 6 states and 422 transitions. [2023-08-25 17:17:27,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 163 transitions, 1062 flow [2023-08-25 17:17:27,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 163 transitions, 1062 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 17:17:27,069 INFO L231 Difference]: Finished difference. Result has 74 places, 130 transitions, 900 flow [2023-08-25 17:17:27,069 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=900, PETRI_PLACES=74, PETRI_TRANSITIONS=130} [2023-08-25 17:17:27,070 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 29 predicate places. [2023-08-25 17:17:27,070 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 130 transitions, 900 flow [2023-08-25 17:17:27,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 54.5) internal successors, (327), 6 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:27,070 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:17:27,070 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:17:27,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 17:17:27,071 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-25 17:17:27,071 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:17:27,071 INFO L85 PathProgramCache]: Analyzing trace with hash 946393868, now seen corresponding path program 1 times [2023-08-25 17:17:27,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:17:27,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274897253] [2023-08-25 17:17:27,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:17:27,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:17:27,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:17:27,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:17:27,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:17:27,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274897253] [2023-08-25 17:17:27,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274897253] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:17:27,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:17:27,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:17:27,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377245461] [2023-08-25 17:17:27,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:17:27,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:17:27,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:17:27,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:17:27,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:17:27,245 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 133 [2023-08-25 17:17:27,246 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 130 transitions, 900 flow. Second operand has 6 states, 6 states have (on average 57.5) internal successors, (345), 6 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:27,246 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:17:27,246 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 133 [2023-08-25 17:17:27,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:17:27,605 INFO L124 PetriNetUnfolderBase]: 587/1266 cut-off events. [2023-08-25 17:17:27,605 INFO L125 PetriNetUnfolderBase]: For 1698/1700 co-relation queries the response was YES. [2023-08-25 17:17:27,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4336 conditions, 1266 events. 587/1266 cut-off events. For 1698/1700 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 6618 event pairs, 174 based on Foata normal form. 0/1207 useless extension candidates. Maximal degree in co-relation 4313. Up to 1016 conditions per place. [2023-08-25 17:17:27,617 INFO L140 encePairwiseOnDemand]: 114/133 looper letters, 152 selfloop transitions, 83 changer transitions 4/241 dead transitions. [2023-08-25 17:17:27,617 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 241 transitions, 1900 flow [2023-08-25 17:17:27,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:17:27,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:17:27,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 459 transitions. [2023-08-25 17:17:27,619 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.575187969924812 [2023-08-25 17:17:27,619 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 459 transitions. [2023-08-25 17:17:27,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 459 transitions. [2023-08-25 17:17:27,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:17:27,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 459 transitions. [2023-08-25 17:17:27,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 76.5) internal successors, (459), 6 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:27,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 133.0) internal successors, (931), 7 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:27,624 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 133.0) internal successors, (931), 7 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:27,624 INFO L175 Difference]: Start difference. First operand has 74 places, 130 transitions, 900 flow. Second operand 6 states and 459 transitions. [2023-08-25 17:17:27,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 241 transitions, 1900 flow [2023-08-25 17:17:27,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 241 transitions, 1836 flow, removed 32 selfloop flow, removed 0 redundant places. [2023-08-25 17:17:27,641 INFO L231 Difference]: Finished difference. Result has 84 places, 199 transitions, 1592 flow [2023-08-25 17:17:27,642 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=842, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1592, PETRI_PLACES=84, PETRI_TRANSITIONS=199} [2023-08-25 17:17:27,643 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 39 predicate places. [2023-08-25 17:17:27,643 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 199 transitions, 1592 flow [2023-08-25 17:17:27,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 57.5) internal successors, (345), 6 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:27,644 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:17:27,644 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:17:27,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 17:17:27,644 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-25 17:17:27,644 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:17:27,645 INFO L85 PathProgramCache]: Analyzing trace with hash -203584683, now seen corresponding path program 1 times [2023-08-25 17:17:27,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:17:27,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297430063] [2023-08-25 17:17:27,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:17:27,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:17:27,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 17:17:27,672 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 17:17:27,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 17:17:27,716 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 17:17:27,716 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 17:17:27,717 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2023-08-25 17:17:27,719 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2023-08-25 17:17:27,719 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2023-08-25 17:17:27,719 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2023-08-25 17:17:27,719 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2023-08-25 17:17:27,719 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2023-08-25 17:17:27,720 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2023-08-25 17:17:27,720 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2023-08-25 17:17:27,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 17:17:27,720 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-25 17:17:27,726 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 17:17:27,726 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 17:17:27,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 05:17:27 BasicIcfg [2023-08-25 17:17:27,793 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 17:17:27,795 INFO L158 Benchmark]: Toolchain (without parser) took 6233.60ms. Allocated memory was 337.6MB in the beginning and 532.7MB in the end (delta: 195.0MB). Free memory was 311.4MB in the beginning and 504.5MB in the end (delta: -193.1MB). Peak memory consumption was 258.3MB. Max. memory is 16.0GB. [2023-08-25 17:17:27,795 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 337.6MB. Free memory is still 314.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 17:17:27,796 INFO L158 Benchmark]: CACSL2BoogieTranslator took 583.61ms. Allocated memory is still 337.6MB. Free memory was 311.1MB in the beginning and 282.9MB in the end (delta: 28.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-08-25 17:17:27,798 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.52ms. Allocated memory is still 337.6MB. Free memory was 282.9MB in the beginning and 280.2MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-25 17:17:27,798 INFO L158 Benchmark]: Boogie Preprocessor took 27.10ms. Allocated memory is still 337.6MB. Free memory was 280.2MB in the beginning and 278.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 17:17:27,799 INFO L158 Benchmark]: RCFGBuilder took 402.93ms. Allocated memory was 337.6MB in the beginning and 442.5MB in the end (delta: 104.9MB). Free memory was 278.4MB in the beginning and 415.2MB in the end (delta: -136.8MB). Peak memory consumption was 20.5MB. Max. memory is 16.0GB. [2023-08-25 17:17:27,799 INFO L158 Benchmark]: TraceAbstraction took 5170.32ms. Allocated memory was 442.5MB in the beginning and 532.7MB in the end (delta: 90.2MB). Free memory was 414.4MB in the beginning and 504.5MB in the end (delta: -90.1MB). Peak memory consumption was 254.6MB. Max. memory is 16.0GB. [2023-08-25 17:17:27,801 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 337.6MB. Free memory is still 314.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 583.61ms. Allocated memory is still 337.6MB. Free memory was 311.1MB in the beginning and 282.9MB in the end (delta: 28.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 40.52ms. Allocated memory is still 337.6MB. Free memory was 282.9MB in the beginning and 280.2MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 27.10ms. Allocated memory is still 337.6MB. Free memory was 280.2MB in the beginning and 278.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 402.93ms. Allocated memory was 337.6MB in the beginning and 442.5MB in the end (delta: 104.9MB). Free memory was 278.4MB in the beginning and 415.2MB in the end (delta: -136.8MB). Peak memory consumption was 20.5MB. Max. memory is 16.0GB. * TraceAbstraction took 5170.32ms. Allocated memory was 442.5MB in the beginning and 532.7MB in the end (delta: 90.2MB). Free memory was 414.4MB in the beginning and 504.5MB in the end (delta: -90.1MB). Peak memory consumption was 254.6MB. 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: 2.0s, 86 PlacesBefore, 45 PlacesAfterwards, 82 TransitionsBefore, 41 TransitionsAfterwards, 1612 CoEnabledTransitionPairs, 5 FixpointIterations, 23 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 41 TotalNumberOfCompositions, 9081 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1530, independent: 1113, independent conditional: 0, independent unconditional: 1113, dependent: 417, dependent conditional: 0, dependent unconditional: 417, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 591, independent: 542, independent conditional: 0, independent unconditional: 542, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1530, independent: 571, independent conditional: 0, independent unconditional: 571, dependent: 368, dependent conditional: 0, dependent unconditional: 368, unknown: 591, unknown conditional: 0, unknown unconditional: 591] , Statistics on independence cache: Total cache size (in pairs): 110, Positive cache size: 74, Positive conditional cache size: 0, Positive unconditional cache size: 74, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, 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 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L918] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L927] 0 pthread_t id; [L928] 0 int i; [L929] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, (void *) &i) VAL [arg={5:0}, i={5:0}, id={6:0}, mutex1={1:0}, mutex2={2:0}, pthread_create(&id, ((void *)0), t_fun, (void *) &i)=-1] [L920] 1 int *p = (int *) arg; [L931] EXPR 0 \read(i) VAL [\read(i)=-3, arg={5:0}, arg={5:0}, i={5:0}, id={6:0}, mutex1={1:0}, mutex2={2:0}, p={5:0}, pthread_mutex_lock(&mutex1)=0] [L922] EXPR 1 \read(*p) VAL [\read(*p)=-3, arg={5:0}, arg={5:0}, mutex1={1:0}, mutex2={2:0}, p={5:0}] [L931] 0 i++ VAL [\read(*p)=-3, \read(i)=-3, arg={5:0}, arg={5:0}, i={5:0}, id={6:0}, mutex1={1:0}, mutex2={2:0}, p={5:0}] [L922] 1 (*p)++ VAL [\read(*p)=-3, arg={5:0}, arg={5:0}, mutex1={1:0}, mutex2={2:0}, p={5:0}] [L931] 0 i++ VAL [\read(*p)=-3, \read(i)=-3, arg={5:0}, arg={5:0}, i={5:0}, id={6:0}, mutex1={1:0}, mutex2={2:0}, p={5:0}] [L922] 1 (*p)++ VAL [\read(*p)=-3, arg={5:0}, arg={5:0}, mutex1={1:0}, mutex2={2:0}, p={5:0}] [L931] 0 i++ VAL [\read(*p)=-3, \read(i)=-3, arg={5:0}, arg={5:0}, i={5:0}, id={6:0}, mutex1={1:0}, mutex2={2:0}, p={5:0}] [L922] 1 (*p)++ VAL [\read(*p)=-3, arg={5:0}, arg={5:0}, mutex1={1:0}, mutex2={2:0}, p={5:0}] [L931] 0 i++ VAL [\read(*p)=-3, \read(i)=-3, arg={5:0}, arg={5:0}, i={5:0}, id={6:0}, mutex1={1:0}, mutex2={2:0}, p={5:0}] [L922] 1 (*p)++ VAL [\read(*p)=-3, arg={5:0}, arg={5:0}, mutex1={1:0}, mutex2={2:0}, p={5:0}] [L931] 0 i++ VAL [\read(*p)=-3, \read(i)=-3, arg={5:0}, arg={5:0}, i++=-3, i++=25, i={5:0}, id={6:0}, mutex1={1:0}, mutex2={2:0}, p={5:0}] [L922] 1 (*p)++ VAL [\read(*p)=-3, arg={5:0}, arg={5:0}, mutex1={1:0}, mutex2={2:0}, p={5:0}] Now there is a data race (on the heap) between C: i++ [931] and C: (*p)++ [922] - UnprovableResult [Line: 931]: 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 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: 929]: 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, 121 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: 5.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 145 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 145 mSDsluCounter, 86 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 56 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1138 IncrementalHoareTripleChecker+Invalid, 1194 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 56 mSolverCounterUnsat, 86 mSDtfsCounter, 1138 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1592occurred in iteration=4, InterpolantAutomatonStates: 24, 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, 1.0s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 368 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-25 17:17:27,851 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...