/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_09-ptrmunge_rc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 17:15:17,112 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 17:15:17,156 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 17:15:17,159 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 17:15:17,159 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 17:15:17,192 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 17:15:17,193 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 17:15:17,196 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 17:15:17,197 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 17:15:17,199 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 17:15:17,200 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 17:15:17,200 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 17:15:17,200 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 17:15:17,200 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 17:15:17,200 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 17:15:17,200 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 17:15:17,201 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 17:15:17,201 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 17:15:17,201 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 17:15:17,201 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 17:15:17,201 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 17:15:17,203 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 17:15:17,203 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 17:15:17,203 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 17:15:17,203 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 17:15:17,203 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 17:15:17,204 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 17:15:17,204 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:15:17,204 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 17:15:17,204 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 17:15:17,205 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 17:15:17,205 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 17:15:17,205 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 17:15:17,205 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 17:15:17,205 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 17:15:17,205 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 17:15:17,419 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 17:15:17,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 17:15:17,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 17:15:17,437 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 17:15:17,437 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 17:15:17,438 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_09-ptrmunge_rc.i [2023-08-25 17:15:18,396 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 17:15:18,627 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 17:15:18,627 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_09-ptrmunge_rc.i [2023-08-25 17:15:18,636 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0165d835b/1970e7276b8e48759e2340fc1f103cb2/FLAG3c461d1a6 [2023-08-25 17:15:18,647 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0165d835b/1970e7276b8e48759e2340fc1f103cb2 [2023-08-25 17:15:18,649 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 17:15:18,650 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 17:15:18,650 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 17:15:18,651 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 17:15:18,652 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 17:15:18,653 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:15:18" (1/1) ... [2023-08-25 17:15:18,653 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68ac8240 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:18, skipping insertion in model container [2023-08-25 17:15:18,653 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:15:18" (1/1) ... [2023-08-25 17:15:18,682 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 17:15:18,982 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:15:18,993 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 17:15:19,016 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 17:15:19,017 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 17:15:19,022 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [736] [2023-08-25 17:15:19,028 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:15:19,077 INFO L206 MainTranslator]: Completed translation [2023-08-25 17:15:19,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:19 WrapperNode [2023-08-25 17:15:19,079 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 17:15:19,080 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 17:15:19,080 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 17:15:19,080 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 17:15:19,084 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:19" (1/1) ... [2023-08-25 17:15:19,108 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:19" (1/1) ... [2023-08-25 17:15:19,136 INFO L138 Inliner]: procedures = 263, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 89 [2023-08-25 17:15:19,136 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 17:15:19,137 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 17:15:19,137 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 17:15:19,137 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 17:15:19,143 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:19" (1/1) ... [2023-08-25 17:15:19,143 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:19" (1/1) ... [2023-08-25 17:15:19,152 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:19" (1/1) ... [2023-08-25 17:15:19,152 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:19" (1/1) ... [2023-08-25 17:15:19,157 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:19" (1/1) ... [2023-08-25 17:15:19,158 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:19" (1/1) ... [2023-08-25 17:15:19,159 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:19" (1/1) ... [2023-08-25 17:15:19,160 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:19" (1/1) ... [2023-08-25 17:15:19,162 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 17:15:19,163 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 17:15:19,163 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 17:15:19,163 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 17:15:19,163 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:19" (1/1) ... [2023-08-25 17:15:19,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:15:19,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 17:15:19,189 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 17:15:19,199 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 17:15:19,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 17:15:19,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 17:15:19,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 17:15:19,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 17:15:19,220 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 17:15:19,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 17:15:19,220 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 17:15:19,220 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 17:15:19,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 17:15:19,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 17:15:19,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 17:15:19,221 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 17:15:19,313 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 17:15:19,315 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 17:15:19,480 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 17:15:19,485 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 17:15:19,485 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 17:15:19,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:15:19 BoogieIcfgContainer [2023-08-25 17:15:19,486 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 17:15:19,487 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 17:15:19,488 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 17:15:19,489 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 17:15:19,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:15:18" (1/3) ... [2023-08-25 17:15:19,490 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17ec9db3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:15:19, skipping insertion in model container [2023-08-25 17:15:19,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:19" (2/3) ... [2023-08-25 17:15:19,490 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17ec9db3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:15:19, skipping insertion in model container [2023-08-25 17:15:19,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:15:19" (3/3) ... [2023-08-25 17:15:19,491 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_09-ptrmunge_rc.i [2023-08-25 17:15:19,501 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 17:15:19,502 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-08-25 17:15:19,502 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 17:15:19,549 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-25 17:15:19,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 97 transitions, 202 flow [2023-08-25 17:15:19,618 INFO L124 PetriNetUnfolderBase]: 0/96 cut-off events. [2023-08-25 17:15:19,618 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 17:15:19,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 96 events. 0/96 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-08-25 17:15:19,621 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 97 transitions, 202 flow [2023-08-25 17:15:19,623 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 89 transitions, 181 flow [2023-08-25 17:15:19,626 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 17:15:19,637 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 89 transitions, 181 flow [2023-08-25 17:15:19,639 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 89 transitions, 181 flow [2023-08-25 17:15:19,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 89 transitions, 181 flow [2023-08-25 17:15:19,654 INFO L124 PetriNetUnfolderBase]: 0/89 cut-off events. [2023-08-25 17:15:19,654 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:15:19,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 89 events. 0/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-25 17:15:19,655 INFO L119 LiptonReduction]: Number of co-enabled transitions 1836 [2023-08-25 17:15:21,398 INFO L134 LiptonReduction]: Checked pairs total: 10847 [2023-08-25 17:15:21,398 INFO L136 LiptonReduction]: Total number of compositions: 48 [2023-08-25 17:15:21,407 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 17:15:21,411 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;@4c2f455d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 17:15:21,411 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-25 17:15:21,417 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 17:15:21,417 INFO L124 PetriNetUnfolderBase]: 0/14 cut-off events. [2023-08-25 17:15:21,417 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:15:21,417 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:15:21,417 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:15:21,418 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 17:15:21,421 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:15:21,421 INFO L85 PathProgramCache]: Analyzing trace with hash 31893175, now seen corresponding path program 1 times [2023-08-25 17:15:21,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:15:21,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106370042] [2023-08-25 17:15:21,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:15:21,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:15:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:15:21,923 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 17:15:21,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:15:21,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106370042] [2023-08-25 17:15:21,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106370042] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:15:21,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:15:21,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:15:21,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575886560] [2023-08-25 17:15:21,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:15:21,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:15:21,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:15:21,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:15:21,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:15:21,955 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 145 [2023-08-25 17:15:21,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 41 transitions, 85 flow. Second operand has 6 states, 6 states have (on average 62.5) internal successors, (375), 6 states have internal predecessors, (375), 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 17:15:21,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:15:21,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 145 [2023-08-25 17:15:21,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:15:22,211 INFO L124 PetriNetUnfolderBase]: 394/835 cut-off events. [2023-08-25 17:15:22,212 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:15:22,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1675 conditions, 835 events. 394/835 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3624 event pairs, 259 based on Foata normal form. 0/741 useless extension candidates. Maximal degree in co-relation 1666. Up to 655 conditions per place. [2023-08-25 17:15:22,218 INFO L140 encePairwiseOnDemand]: 134/145 looper letters, 89 selfloop transitions, 22 changer transitions 0/111 dead transitions. [2023-08-25 17:15:22,218 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 111 transitions, 447 flow [2023-08-25 17:15:22,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:15:22,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:15:22,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 478 transitions. [2023-08-25 17:15:22,227 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5494252873563218 [2023-08-25 17:15:22,228 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 478 transitions. [2023-08-25 17:15:22,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 478 transitions. [2023-08-25 17:15:22,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:15:22,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 478 transitions. [2023-08-25 17:15:22,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 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 17:15:22,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 145.0) internal successors, (1015), 7 states have internal predecessors, (1015), 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 17:15:22,237 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 145.0) internal successors, (1015), 7 states have internal predecessors, (1015), 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 17:15:22,238 INFO L175 Difference]: Start difference. First operand has 45 places, 41 transitions, 85 flow. Second operand 6 states and 478 transitions. [2023-08-25 17:15:22,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 111 transitions, 447 flow [2023-08-25 17:15:22,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 111 transitions, 446 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:15:22,242 INFO L231 Difference]: Finished difference. Result has 54 places, 62 transitions, 234 flow [2023-08-25 17:15:22,243 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, 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 17:15:22,245 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 9 predicate places. [2023-08-25 17:15:22,245 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 62 transitions, 234 flow [2023-08-25 17:15:22,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.5) internal successors, (375), 6 states have internal predecessors, (375), 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 17:15:22,246 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:15:22,246 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:15:22,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 17:15:22,246 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 17:15:22,247 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:15:22,247 INFO L85 PathProgramCache]: Analyzing trace with hash -975427686, now seen corresponding path program 1 times [2023-08-25 17:15:22,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:15:22,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194001901] [2023-08-25 17:15:22,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:15:22,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:15:22,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:15:22,378 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 17:15:22,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:15:22,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194001901] [2023-08-25 17:15:22,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194001901] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:15:22,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:15:22,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:15:22,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610543164] [2023-08-25 17:15:22,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:15:22,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:15:22,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:15:22,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:15:22,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:15:22,382 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 145 [2023-08-25 17:15:22,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 62 transitions, 234 flow. Second operand has 6 states, 6 states have (on average 62.5) internal successors, (375), 6 states have internal predecessors, (375), 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 17:15:22,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:15:22,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 145 [2023-08-25 17:15:22,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:15:22,676 INFO L124 PetriNetUnfolderBase]: 463/979 cut-off events. [2023-08-25 17:15:22,676 INFO L125 PetriNetUnfolderBase]: For 264/264 co-relation queries the response was YES. [2023-08-25 17:15:22,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2343 conditions, 979 events. 463/979 cut-off events. For 264/264 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 4575 event pairs, 194 based on Foata normal form. 0/889 useless extension candidates. Maximal degree in co-relation 2330. Up to 720 conditions per place. [2023-08-25 17:15:22,682 INFO L140 encePairwiseOnDemand]: 134/145 looper letters, 130 selfloop transitions, 26 changer transitions 0/156 dead transitions. [2023-08-25 17:15:22,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 156 transitions, 824 flow [2023-08-25 17:15:22,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:15:22,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:15:22,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 502 transitions. [2023-08-25 17:15:22,686 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5770114942528736 [2023-08-25 17:15:22,686 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 502 transitions. [2023-08-25 17:15:22,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 502 transitions. [2023-08-25 17:15:22,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:15:22,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 502 transitions. [2023-08-25 17:15:22,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 83.66666666666667) internal successors, (502), 6 states have internal predecessors, (502), 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 17:15:22,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 145.0) internal successors, (1015), 7 states have internal predecessors, (1015), 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 17:15:22,689 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 145.0) internal successors, (1015), 7 states have internal predecessors, (1015), 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 17:15:22,690 INFO L175 Difference]: Start difference. First operand has 54 places, 62 transitions, 234 flow. Second operand 6 states and 502 transitions. [2023-08-25 17:15:22,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 156 transitions, 824 flow [2023-08-25 17:15:22,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 156 transitions, 824 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 17:15:22,696 INFO L231 Difference]: Finished difference. Result has 64 places, 83 transitions, 418 flow [2023-08-25 17:15:22,696 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, 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 17:15:22,696 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 19 predicate places. [2023-08-25 17:15:22,697 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 83 transitions, 418 flow [2023-08-25 17:15:22,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.5) internal successors, (375), 6 states have internal predecessors, (375), 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 17:15:22,697 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:15:22,697 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:15:22,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 17:15:22,698 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 17:15:22,702 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:15:22,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1442276175, now seen corresponding path program 1 times [2023-08-25 17:15:22,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:15:22,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993442982] [2023-08-25 17:15:22,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:15:22,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:15:22,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:15:22,899 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 17:15:22,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:15:22,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993442982] [2023-08-25 17:15:22,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993442982] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:15:22,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:15:22,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:15:22,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777239038] [2023-08-25 17:15:22,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:15:22,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:15:22,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:15:22,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:15:22,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:15:22,903 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 145 [2023-08-25 17:15:22,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 83 transitions, 418 flow. Second operand has 6 states, 6 states have (on average 61.5) internal successors, (369), 6 states have internal predecessors, (369), 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 17:15:22,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:15:22,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 145 [2023-08-25 17:15:22,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:15:23,107 INFO L124 PetriNetUnfolderBase]: 533/1124 cut-off events. [2023-08-25 17:15:23,107 INFO L125 PetriNetUnfolderBase]: For 776/776 co-relation queries the response was YES. [2023-08-25 17:15:23,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3218 conditions, 1124 events. 533/1124 cut-off events. For 776/776 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 5468 event pairs, 243 based on Foata normal form. 0/1046 useless extension candidates. Maximal degree in co-relation 3200. Up to 960 conditions per place. [2023-08-25 17:15:23,113 INFO L140 encePairwiseOnDemand]: 130/145 looper letters, 110 selfloop transitions, 53 changer transitions 0/163 dead transitions. [2023-08-25 17:15:23,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 163 transitions, 1064 flow [2023-08-25 17:15:23,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:15:23,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:15:23,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 465 transitions. [2023-08-25 17:15:23,114 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5344827586206896 [2023-08-25 17:15:23,114 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 465 transitions. [2023-08-25 17:15:23,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 465 transitions. [2023-08-25 17:15:23,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:15:23,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 465 transitions. [2023-08-25 17:15:23,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 77.5) internal successors, (465), 6 states have internal predecessors, (465), 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 17:15:23,116 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 145.0) internal successors, (1015), 7 states have internal predecessors, (1015), 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 17:15:23,117 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 145.0) internal successors, (1015), 7 states have internal predecessors, (1015), 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 17:15:23,117 INFO L175 Difference]: Start difference. First operand has 64 places, 83 transitions, 418 flow. Second operand 6 states and 465 transitions. [2023-08-25 17:15:23,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 163 transitions, 1064 flow [2023-08-25 17:15:23,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 163 transitions, 1064 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 17:15:23,125 INFO L231 Difference]: Finished difference. Result has 74 places, 130 transitions, 900 flow [2023-08-25 17:15:23,125 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, 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 17:15:23,126 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 29 predicate places. [2023-08-25 17:15:23,128 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 130 transitions, 900 flow [2023-08-25 17:15:23,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 61.5) internal successors, (369), 6 states have internal predecessors, (369), 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 17:15:23,128 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:15:23,128 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:15:23,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 17:15:23,129 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 17:15:23,129 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:15:23,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1012354218, now seen corresponding path program 1 times [2023-08-25 17:15:23,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:15:23,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084713515] [2023-08-25 17:15:23,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:15:23,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:15:23,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:15:23,312 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 17:15:23,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:15:23,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084713515] [2023-08-25 17:15:23,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084713515] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:15:23,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:15:23,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:15:23,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318083952] [2023-08-25 17:15:23,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:15:23,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:15:23,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:15:23,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:15:23,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:15:23,316 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 145 [2023-08-25 17:15:23,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 130 transitions, 900 flow. Second operand has 6 states, 6 states have (on average 61.5) internal successors, (369), 6 states have internal predecessors, (369), 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 17:15:23,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:15:23,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 145 [2023-08-25 17:15:23,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:15:23,603 INFO L124 PetriNetUnfolderBase]: 643/1349 cut-off events. [2023-08-25 17:15:23,603 INFO L125 PetriNetUnfolderBase]: For 1732/1732 co-relation queries the response was YES. [2023-08-25 17:15:23,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4614 conditions, 1349 events. 643/1349 cut-off events. For 1732/1732 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 6922 event pairs, 201 based on Foata normal form. 0/1289 useless extension candidates. Maximal degree in co-relation 4591. Up to 1098 conditions per place. [2023-08-25 17:15:23,610 INFO L140 encePairwiseOnDemand]: 126/145 looper letters, 162 selfloop transitions, 83 changer transitions 4/249 dead transitions. [2023-08-25 17:15:23,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 249 transitions, 1936 flow [2023-08-25 17:15:23,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:15:23,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:15:23,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 493 transitions. [2023-08-25 17:15:23,611 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667 [2023-08-25 17:15:23,611 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 493 transitions. [2023-08-25 17:15:23,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 493 transitions. [2023-08-25 17:15:23,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:15:23,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 493 transitions. [2023-08-25 17:15:23,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.16666666666667) internal successors, (493), 6 states have internal predecessors, (493), 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 17:15:23,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 145.0) internal successors, (1015), 7 states have internal predecessors, (1015), 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 17:15:23,614 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 145.0) internal successors, (1015), 7 states have internal predecessors, (1015), 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 17:15:23,614 INFO L175 Difference]: Start difference. First operand has 74 places, 130 transitions, 900 flow. Second operand 6 states and 493 transitions. [2023-08-25 17:15:23,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 249 transitions, 1936 flow [2023-08-25 17:15:23,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 249 transitions, 1872 flow, removed 32 selfloop flow, removed 0 redundant places. [2023-08-25 17:15:23,622 INFO L231 Difference]: Finished difference. Result has 84 places, 199 transitions, 1592 flow [2023-08-25 17:15:23,622 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, 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 17:15:23,623 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 39 predicate places. [2023-08-25 17:15:23,623 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 199 transitions, 1592 flow [2023-08-25 17:15:23,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 61.5) internal successors, (369), 6 states have internal predecessors, (369), 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 17:15:23,623 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:15:23,623 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 17:15:23,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 17:15:23,623 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 17:15:23,624 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:15:23,624 INFO L85 PathProgramCache]: Analyzing trace with hash 2060399518, now seen corresponding path program 1 times [2023-08-25 17:15:23,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:15:23,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727883827] [2023-08-25 17:15:23,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:15:23,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:15:23,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 17:15:23,639 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 17:15:23,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 17:15:23,659 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 17:15:23,660 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 17:15:23,660 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2023-08-25 17:15:23,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2023-08-25 17:15:23,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2023-08-25 17:15:23,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2023-08-25 17:15:23,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2023-08-25 17:15:23,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2023-08-25 17:15:23,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2023-08-25 17:15:23,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2023-08-25 17:15:23,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 17:15:23,662 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-25 17:15:23,666 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 17:15:23,666 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 17:15:23,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 05:15:23 BasicIcfg [2023-08-25 17:15:23,699 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 17:15:23,699 INFO L158 Benchmark]: Toolchain (without parser) took 5049.20ms. Allocated memory was 408.9MB in the beginning and 490.7MB in the end (delta: 81.8MB). Free memory was 383.4MB in the beginning and 394.2MB in the end (delta: -10.8MB). Peak memory consumption was 72.0MB. Max. memory is 16.0GB. [2023-08-25 17:15:23,699 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 408.9MB. Free memory is still 386.9MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 17:15:23,699 INFO L158 Benchmark]: CACSL2BoogieTranslator took 428.58ms. Allocated memory is still 408.9MB. Free memory was 383.4MB in the beginning and 355.6MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-08-25 17:15:23,700 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.44ms. Allocated memory is still 408.9MB. Free memory was 355.6MB in the beginning and 353.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 17:15:23,700 INFO L158 Benchmark]: Boogie Preprocessor took 25.23ms. Allocated memory is still 408.9MB. Free memory was 353.0MB in the beginning and 351.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 17:15:23,700 INFO L158 Benchmark]: RCFGBuilder took 323.55ms. Allocated memory is still 408.9MB. Free memory was 350.9MB in the beginning and 334.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-25 17:15:23,700 INFO L158 Benchmark]: TraceAbstraction took 4211.18ms. Allocated memory was 408.9MB in the beginning and 490.7MB in the end (delta: 81.8MB). Free memory was 333.4MB in the beginning and 394.2MB in the end (delta: -60.8MB). Peak memory consumption was 21.7MB. Max. memory is 16.0GB. [2023-08-25 17:15:23,701 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 408.9MB. Free memory is still 386.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 428.58ms. Allocated memory is still 408.9MB. Free memory was 383.4MB in the beginning and 355.6MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 56.44ms. Allocated memory is still 408.9MB. Free memory was 355.6MB in the beginning and 353.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 25.23ms. Allocated memory is still 408.9MB. Free memory was 353.0MB in the beginning and 351.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 323.55ms. Allocated memory is still 408.9MB. Free memory was 350.9MB in the beginning and 334.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 4211.18ms. Allocated memory was 408.9MB in the beginning and 490.7MB in the end (delta: 81.8MB). Free memory was 333.4MB in the beginning and 394.2MB in the end (delta: -60.8MB). Peak memory consumption was 21.7MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 736]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [736] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 93 PlacesBefore, 45 PlacesAfterwards, 89 TransitionsBefore, 41 TransitionsAfterwards, 1836 CoEnabledTransitionPairs, 6 FixpointIterations, 26 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 48 TotalNumberOfCompositions, 10847 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2575, independent: 2080, independent conditional: 0, independent unconditional: 2080, dependent: 495, dependent conditional: 0, dependent unconditional: 495, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 752, independent: 709, independent conditional: 0, independent unconditional: 709, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2575, independent: 1371, independent conditional: 0, independent unconditional: 1371, dependent: 452, dependent conditional: 0, dependent unconditional: 452, unknown: 752, unknown conditional: 0, unknown unconditional: 752] , Statistics on independence cache: Total cache size (in pairs): 157, Positive cache size: 121, Positive conditional cache size: 0, Positive unconditional cache size: 121, 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: 923]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal1; [L918] 0 int myglobal2; [L919] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L920] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L931] 0 pthread_t id; [L932] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={5:0}, mutex1={2:0}, mutex2={3:0}, myglobal1={1:0}, myglobal2=0, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L933] CALL 0 munge(&mutex2,&myglobal1) [L927] CALL 1 munge(&mutex1, &myglobal1) [L923] EXPR 0 \read(*v) VAL [\read(*v)=0, m={2:0}, m={2:0}, m={3:0}, m={3:0}, mutex1={2:0}, mutex2={3:0}, myglobal1={1:0}, myglobal2=0, pthread_mutex_lock(m)=0, v={1:0}, v={1:0}, v={1:0}, v={1:0}] [L923] 1 \read(*v) VAL [\read(*v)=0, \read(*v)=0, m={2:0}, m={2:0}, m={3:0}, m={3:0}, mutex1={2:0}, mutex2={3:0}, myglobal1={1:0}, myglobal2=0, v={1:0}, v={1:0}, v={1:0}, v={1:0}] [L923] EXPR 0 *v+1 VAL [\read(*v)=0, \read(*v)=0, m={2:0}, m={2:0}, m={3:0}, m={3:0}, mutex1={2:0}, mutex2={3:0}, myglobal1={1:0}, myglobal2=0, v={1:0}, v={1:0}, v={1:0}, v={1:0}] [L923] 0 *v=*v+1 VAL [*v=*v+1=25, \read(*v)=0, \read(*v)=0, m={2:0}, m={2:0}, m={3:0}, m={3:0}, mutex1={2:0}, mutex2={3:0}, myglobal1={1:0}, myglobal2=0, v={1:0}, v={1:0}, v={1:0}, v={1:0}] [L923] 1 *v+1 VAL [*v=*v+1=25, \read(*v)=0, \read(*v)=0, m={2:0}, m={2:0}, m={3:0}, m={3:0}, mutex1={2:0}, mutex2={3:0}, myglobal1={1:0}, myglobal2=0, v={1:0}, v={1:0}, v={1:0}, v={1:0}] Now there is a data race (on the heap) between C: *v=*v+1 [923] and C: *v+1 [923] - UnprovableResult [Line: 923]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 934]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 932]: 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: 923]: 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, 127 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: 4.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 165 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 165 mSDsluCounter, 94 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 59 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 983 IncrementalHoareTripleChecker+Invalid, 1042 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 59 mSolverCounterUnsat, 94 mSDtfsCounter, 983 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 8 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, 0.8s 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 17:15:23,744 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...